Re: [MBZ] Compression good
Hmm, if that short hose under the thermostat housing were leaking you could get a bubble right at the top of the thermostat which might dissipate over time if the car were left alone which could explain the car being more drivable after sitting for some time. I *think* I replaced that hose but I also *think* I couldn't get the exact right hose to fit. This was back in the Trent era. So IIRC I bought a piece of hose at Car Quest that was something like the hose I needed. I did the same with a piece of heater hose that runs near there. The heater hose in particular is supposed to be 2 different sizes and was a real bugger to get on. Definitely something for Dimitri to check out, sadly its about the WORST place on the engine to work on... -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Wednesday, January 7, 2015 3:26 PM Subject: Re: [MBZ] Compression good David wrote: The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. Curt wrote: Yup, this one has it, just like a snowmobile. When I did the thermostat I pulled the bolt and filled the housing, then left it out until water started gushing out. Good. But what about over time. Is there a leak somewhere else in the system? Like the bypass hose? If so, air might be getting in and collecting under the bleeder long after you bled it. I think that's what David was suggesting. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
David wrote: The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. Curt wrote: Yup, this one has it, just like a snowmobile. When I did the thermostat I pulled the bolt and filled the housing, then left it out until water started gushing out. Good. But what about over time. Is there a leak somewhere else in the system? Like the bypass hose? If so, air might be getting in and collecting under the bleeder long after you bled it. I think that's what David was suggesting. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Yup, this one has it, just like a snowmobile. When I did the thermostat I pulled the bolt and filled the housing, then left it out until water started gushing out. -Curt From: David Bruckmann via Mercedes mercedes@okiebenz.com To: Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 10:11 PM Subject: Re: [MBZ] Compression good The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. On 1/7/15, Dimitri wrote: Yes, I replaced tstat with a new MB unit from the classic center. It made no difference. There is a short hose under the tstat housing which leaks. After the car is driven and comes to normal operating temp, this hose will leak coolant. I'm theorizing that once the coolant cools and de pressurizes, air is drawn into this leaking coolant hose creating air bubbles. This might be the problem. If the bolts were bottomed out, wouldn't the engine lose compression as the head is not tight to the block? It started in frigid temps this am. Makes me wonder. As far as the bolts go, did we come to the conclusion that it would be alright to remove one at a time, tap the hole and re-torque? ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Yes, these are my thoughts exactly. I'm very suspicious of that hose. I will call Tom Hanson at CC and order a correct one. I will have to wait for the deep freeze to go away before I replace it though. Sent from my iPhone On Jan 7, 2015, at 3:36 PM, Curt Raymond via Mercedes mercedes@okiebenz.com wrote: Hmm, if that short hose under the thermostat housing were leaking you could get a bubble right at the top of the thermostat which might dissipate over time if the car were left alone which could explain the car being more drivable after sitting for some time. I *think* I replaced that hose but I also *think* I couldn't get the exact right hose to fit. This was back in the Trent era. So IIRC I bought a piece of hose at Car Quest that was something like the hose I needed. I did the same with a piece of heater hose that runs near there. The heater hose in particular is supposed to be 2 different sizes and was a real bugger to get on. Definitely something for Dimitri to check out, sadly its about the WORST place on the engine to work on... -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Wednesday, January 7, 2015 3:26 PM Subject: Re: [MBZ] Compression good David wrote: The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. Curt wrote: Yup, this one has it, just like a snowmobile. When I did the thermostat I pulled the bolt and filled the housing, then left it out until water started gushing out. Good. But what about over time. Is there a leak somewhere else in the system? Like the bypass hose? If so, air might be getting in and collecting under the bleeder long after you bled it. I think that's what David was suggesting. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
The location of the leaking hose under the thermostat housing makes me very suspicious of what you are describing. This hose is difficult to access which makes it very likely that it is original to the car. Replacing this hose will be next on my list. Sent from my iPhone On Jan 6, 2015, at 10:11 PM, David Bruckmann bruckma...@transcontinental.ca wrote: The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. On 1/7/15, Dimitri wrote: Yes, I replaced tstat with a new MB unit from the classic center. It made no difference. There is a short hose under the tstat housing which leaks. After the car is driven and comes to normal operating temp, this hose will leak coolant. I'm theorizing that once the coolant cools and de pressurizes, air is drawn into this leaking coolant hose creating air bubbles. This might be the problem. If the bolts were bottomed out, wouldn't the engine lose compression as the head is not tight to the block? It started in frigid temps this am. Makes me wonder. As far as the bolts go, did we come to the conclusion that it would be alright to remove one at a time, tap the hole and re-torque? ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Remind me where the shell is placed. Do I block open the top part of the tstat? Like this: http://formicapeak.com/~jimc/SDL/SDLcooltool.jpg -- Jim ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
It had good compression when i had it tested. Still a mystery on temps. On Jan 6, 2015 1:53 PM, dseretakis--- via Mercedes mercedes@okiebenz.com wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
The car is a very early 123 with what I presume is a very early style thermostat housing. We should get Dimitri to get a picture of the thermostat housing, its weird looking... Remember it didn't always do this and when its overheating its bubbling the coolant back out the radiator so its not just a temp gauge variation. My '84 190D temp gauge creeps up sometimes but always drops back down, that one is a gauge gone mad. I've replaced the thermostat, the radiator, and the temp sender but still the issue persists. Now I just ignore it although a dose of water-wetter has helped stabilize it some. -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 6:58 PM Subject: Re: [MBZ] Compression good dseretakis--- wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. What style thermostat housing does this use? 'Cause I have had troubles with the newer style not always sensing the temperature correctly. The fix is a 5 mm or so hole drilled in the thermostat to allow some flow even when cold off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. The car is a very early 123 with what I presume is a very early style thermostat housing. We should get Dimitri to get a picture of the thermostat housing, its weird looking... Remember it didn't always do this and when its overheating its bubbling the coolant back out the radiator so its not just a temp gauge variation. My '84 190D temp gauge creeps up sometimes but always drops back down, that one is a gauge gone mad. I've replaced the thermostat, the radiator, and the temp sender but still the issue persists. Now I just ignore it although a dose of water-wetter has helped stabilize it some. -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 6:58 PM Subject: Re: [MBZ] Compression good dseretakis--- wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. What style thermostat housing does this use? 'Cause I have had troubles with the newer style not always sensing the temperature correctly. The fix is a 5 mm or so hole drilled in the thermostat to allow some flow even when cold off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
dseretakis--- wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. What style thermostat housing does this use? 'Cause I have had troubles with the newer style not always sensing the temperature correctly. The fix is a 5 mm or so hole drilled in the thermostat to allow some flow even when cold off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
I think Dimitri replaced it again. It'd shock me to have THREE thermostats fail exactly the same way. And remember I tested two of them in a pot of boiling water and they both passed... I'm still betting on bottomed out bolts. -Curt From: Curly McLain 126die...@gmail.com To: Curt Raymond curtlud...@yahoo.com; Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 7:45 PM Subject: Re: [MBZ] Compression good I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Remind me where the shell is placed. Do I block open the top part of the tstat? Sent from my iPhone On Jan 6, 2015, at 7:45 PM, Curly McLain via Mercedes mercedes@okiebenz.com wrote: I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. The car is a very early 123 with what I presume is a very early style thermostat housing. We should get Dimitri to get a picture of the thermostat housing, its weird looking... Remember it didn't always do this and when its overheating its bubbling the coolant back out the radiator so its not just a temp gauge variation. My '84 190D temp gauge creeps up sometimes but always drops back down, that one is a gauge gone mad. I've replaced the thermostat, the radiator, and the temp sender but still the issue persists. Now I just ignore it although a dose of water-wetter has helped stabilize it some. -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 6:58 PM Subject: Re: [MBZ] Compression good dseretakis--- wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. What style thermostat housing does this use? 'Cause I have had troubles with the newer style not always sensing the temperature correctly. The fix is a 5 mm or so hole drilled in the thermostat to allow some flow even when cold off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Did you do the compression test hot? What am I asking that for, I'm sure you did... You make good sense though. It actually sounds like the car starts better now than it did when I had it. How cold was it? I figured that to be a 20F car with conventional oil in it. Below that things got iffy which is why I had the block heater put into it. To tap the block with the head installed would take a very long tap. I'd go back to my washer theory. -Curt From: dsereta...@yahoo.com dsereta...@yahoo.com To: Curt Raymond curtlud...@yahoo.com; Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 8:12 PM Subject: Re: [MBZ] Compression good Yes, I replaced tstat with a new MB unit from the classic center. It made no difference. There is a short hose under the tstat housing which leaks. After the car is driven and comes to normal operating temp, this hose will leak coolant. I'm theorizing that once the coolant cools and de pressurizes, air is drawn into this leaking coolant hose creating air bubbles. This might be the problem. If the bolts were bottomed out, wouldn't the engine lose compression as the head is not tight to the block? It started in frigid temps this am. Makes me wonder. As far as the bolts go, did we come to the conclusion that it would be alright to remove one at a time, tap the hole and re-torque? Sent from my iPhone On Jan 6, 2015, at 7:51 PM, Curt Raymond via Mercedes mercedes@okiebenz.com wrote: I think Dimitri replaced it again. It'd shock me to have THREE thermostats fail exactly the same way. And remember I tested two of them in a pot of boiling water and they both passed... I'm still betting on bottomed out bolts. -Curt From: Curly McLain 126die...@gmail.com To: Curt Raymond curtlud...@yahoo.com; Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 7:45 PM Subject: Re: [MBZ] Compression good I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Yes, I replaced tstat with a new MB unit from the classic center. It made no difference. There is a short hose under the tstat housing which leaks. After the car is driven and comes to normal operating temp, this hose will leak coolant. I'm theorizing that once the coolant cools and de pressurizes, air is drawn into this leaking coolant hose creating air bubbles. This might be the problem. If the bolts were bottomed out, wouldn't the engine lose compression as the head is not tight to the block? It started in frigid temps this am. Makes me wonder. As far as the bolts go, did we come to the conclusion that it would be alright to remove one at a time, tap the hole and re-torque? Sent from my iPhone On Jan 6, 2015, at 7:51 PM, Curt Raymond via Mercedes mercedes@okiebenz.com wrote: I think Dimitri replaced it again. It'd shock me to have THREE thermostats fail exactly the same way. And remember I tested two of them in a pot of boiling water and they both passed... I'm still betting on bottomed out bolts. -Curt From: Curly McLain 126die...@gmail.com To: Curt Raymond curtlud...@yahoo.com; Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 7:45 PM Subject: Re: [MBZ] Compression good I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
Normally it’s placed into the receiver….. On Jan 6, 2015, at 8:29 PM, dseretakis--- via Mercedes mercedes@okiebenz.com wrote: Remind me where the shell is placed. Do I block open the top part of the tstat? Sent from my iPhone On Jan 6, 2015, at 7:45 PM, Curly McLain via Mercedes mercedes@okiebenz.com wrote: I'd use the cathey trick to open the thermostat and see how it runs. Until that is done, it is not much use talking about it. Dimitri, congrats on the good compression engine. Test it with the .45 shellint the thermostat, and report back. I am still betting on a thermostat. (ducking...Yes, I know it is new and has been replaced.) A lot of thermostats are bad out of the box. The car is a very early 123 with what I presume is a very early style thermostat housing. We should get Dimitri to get a picture of the thermostat housing, its weird looking... Remember it didn't always do this and when its overheating its bubbling the coolant back out the radiator so its not just a temp gauge variation. My '84 190D temp gauge creeps up sometimes but always drops back down, that one is a gauge gone mad. I've replaced the thermostat, the radiator, and the temp sender but still the issue persists. Now I just ignore it although a dose of water-wetter has helped stabilize it some. -Curt From: fmiser via Mercedes mercedes@okiebenz.com To: mercedes@okiebenz.com Sent: Tuesday, January 6, 2015 6:58 PM Subject: Re: [MBZ] Compression good dseretakis--- wrote: I got Curt and Dwight's former 240D to start this am in 14 degree temp. I put it through two 30 sec glow cycles and one 20 sec crank and it fired up. Compression couldn't be that bad! It still does it's weird temp fluctuation thing so I can only drive it around town for now. What style thermostat housing does this use? 'Cause I have had troubles with the newer style not always sensing the temperature correctly. The fix is a 5 mm or so hole drilled in the thermostat to allow some flow even when cold off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
The early OM61x engines have an air bleed bolt over the thermostat. If you have a leak and air is getting trapped in the space above the thermostat, it could be preventing the thermo from opening properly. On 1/7/15, Dimitri wrote: Yes, I replaced tstat with a new MB unit from the classic center. It made no difference. There is a short hose under the tstat housing which leaks. After the car is driven and comes to normal operating temp, this hose will leak coolant. I'm theorizing that once the coolant cools and de pressurizes, air is drawn into this leaking coolant hose creating air bubbles. This might be the problem. If the bolts were bottomed out, wouldn't the engine lose compression as the head is not tight to the block? It started in frigid temps this am. Makes me wonder. As far as the bolts go, did we come to the conclusion that it would be alright to remove one at a time, tap the hole and re-torque? ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
On Tue, 6 Jan 2015 20:54:50 -0500 Jon Agne via Mercedes mercedes@okiebenz.com wrote: Normally it’s placed into the receiver….. On Jan 6, 2015, at 8:29 PM, dseretakis--- via Mercedes mercedes@okiebenz.com wrote: Remind me where the shell is placed. Do I block open the top part of the tstat? It's placed along the central rod (the shell has to be split lengthwise and wrapped around the central rod) so the thermostat is forced open. Craig ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
Re: [MBZ] Compression good
dseretakis wrote: Remind me where the shell is placed. Do I block open the top part of the tstat? Craig wrote: It's placed along the central rod (the shell has to be split lengthwise and wrapped around the central rod) so the thermostat is forced open. That means either working on a _very_ hot thermostat - or forcing it open against the spring while at the same time placing the tube around the rod. I used a piece of steel brake line, and squeezed it mostly closed after I got it on so it wouldn't fall off. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
