Re: [MBZ] Problem with threads on rear hub
Kevin - If the NAPA store doesn't have it you can go to McMaster-Carr. www.mcmastercarr.com and search for 91732A824 includes the tap, 5 inserts and the installation tool. For an insert that size you could easily break off the installation tang with some needle nose pliers or an appropriately sized punch if you are careful $45.20 for the kit. and if you need the 12.5mm tap drill for the insert search for 2958A169 $8.35 each. You are also going to need a 1/2 drill motor to turn this drill (.492) Barry Well the tap didn't work. I thought it might but the bolt won't take the 82 ft-lbs that's required. So now I need to find a helicoil kit. Pepboyz didn't have anything larger than 11mm. Anyone know for sure if one of the major chains carries M12 x 1.5 kits? I'll be calling around at lunch trying to hunt one down I guess. Hopefully, this is the last hurdle to getting this project car on the road. ...Kevin
Re: [MBZ] Problem with threads on rear hub
Sacrifice a lug-bolt by creatively cutting a slot along the threads near the bottom (off-center, ie about 1/3 way in from the top right with the bolt end facing you).. make the slot about 6 threads long and a bit deeper than the threads themselves (it can taper to nothing at the end closest to the head) ... Its basically a field-fabricated thread chaser. -j.
Re: [MBZ] Problem with threads on rear hub
Dang, why did I not think of that. I actually have several of those that I made over the years. We are definitely old school. Tom Potter -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John W. Reames III Sent: Wednesday, August 30, 2006 7:26 PM To: Mercedes Discussion List Subject: Re: [MBZ] Problem with threads on rear hub Sacrifice a lug-bolt by creatively cutting a slot along the threads near the bottom (off-center, ie about 1/3 way in from the top right with the bolt end facing you).. make the slot about 6 threads long and a bit deeper than the threads themselves (it can taper to nothing at the end closest to the head) ... Its basically a field-fabricated thread chaser. -j. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Problem with threads on rear hub
I had a similar situation with a rear lug bolt on the 450SLC. I used a tap (I didn't know about thread chasers - that's what I'll use next time) to clean out the threads. It removes the metal that's where it's not supposed to be. I verified that the new bolt went in smoothly, then removed it. There is a package at auto parts stores - a thread restorer, or something. It's epoxy with an anti-stick coating for the bolt. I filled the tapped threads with the epoxy, painted the slippery stuff on the bolt and screwed it in to finger tight. Let it harden over night. Then I removed the bolt - verifying that I could - then torqued it in place. It's held just fine ever since. I figure that the threads are holding the wheel on - the epoxy is just filling the extra spaces that are too big. On 8/28/06, Kevin J. Slater [EMAIL PROTECTED] wrote: You don't happen to know what the tap specifics are for the wheel lug bolts do you? And where does one find a tap in these days of big box stores with 80% of what you need? If the threads are already too big a tap won't help much. What to do in that case I wonder? ...Kevin -- OK Don, KD5NRO Norman, OK The Americans will always do the right thing... after they've exhausted all the alternatives. Sir Winston Churchill '90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager
Re: [MBZ] Problem with threads on rear hub
Yep, tap first to see if the threads are galled in the hub but if no joy then a helicoil would be my first choice. It can be done without taking anything apart except removing the wheel and it will be stronger than the original threads. Barry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Brodbeck Sent: Monday, August 28, 2006 11:06 AM To: Mercedes Discussion List Subject: Re: [MBZ] Problem with threads on rear hub Kevin J. Slater wrote: If the threads are already too big a tap won't help much. What to do in that case I wonder? Helicoil?
Re: [MBZ] Problem with threads on rear hub
Well the tap didn't work. I thought it might but the bolt won't take the 82 ft-lbs that's required. So now I need to find a helicoil kit. Pepboyz didn't have anything larger than 11mm. Anyone know for sure if one of the major chains carries M12 x 1.5 kits? I'll be calling around at lunch trying to hunt one down I guess. Hopefully, this is the last hurdle to getting this project car on the road. ...Kevin Barry Stark said: Yep, tap first to see if the threads are galled in the hub but if no joy then a helicoil would be my first choice. It can be done without taking anything apart except removing the wheel and it will be stronger than the original threads. Barry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Brodbeck Sent: Monday, August 28, 2006 11:06 AM To: Mercedes Discussion List Subject: Re: [MBZ] Problem with threads on rear hub Kevin J. Slater wrote: If the threads are already too big a tap won't help much. What to do in that case I wonder? Helicoil? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Thank God for Microsoft -- Linus Torvalds
Re: [MBZ] Problem with threads on rear hub
NAPA usually has a good selection - Larry T (67 MGB, 74 911, 78 240D, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net Weber Carb Info http://members.rennlist.com/webercarbs Porsche Road Test http://members.rennlist.com/roadtest/ . - Original Message - From: Kevin J. Slater [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Tuesday, August 29, 2006 10:49 AM Subject: Re: [MBZ] Problem with threads on rear hub Well the tap didn't work. I thought it might but the bolt won't take the 82 ft-lbs that's required. So now I need to find a helicoil kit. Pepboyz didn't have anything larger than 11mm. Anyone know for sure if one of the major chains carries M12 x 1.5 kits? I'll be calling around at lunch trying to hunt one down I guess. Hopefully, this is the last hurdle to getting this project car on the road. ...Kevin Barry Stark said: Yep, tap first to see if the threads are galled in the hub but if no joy then a helicoil would be my first choice. It can be done without taking anything apart except removing the wheel and it will be stronger than the original threads. Barry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of David Brodbeck Sent: Monday, August 28, 2006 11:06 AM To: Mercedes Discussion List Subject: Re: [MBZ] Problem with threads on rear hub Kevin J. Slater wrote: If the threads are already too big a tap won't help much. What to do in that case I wonder? Helicoil? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Thank God for Microsoft -- Linus Torvalds ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.11.6/430 - Release Date: 8/28/2006
Re: [MBZ] Problem with threads on rear hub
What I fear is that the threads in the hub are too sloppy to engage the threads properly. And looking at the cost of a new hub is a shock! I cleaned up the threads in my 190D with a tap. So far, so good. A used hub is an excellent alternative, they very rarely go bad. -- Jim
Re: [MBZ] Problem with threads on rear hub
Jim suggested using a tap -- there are thread chasers that are made to *cleanup* threads while taps are made to *create*. I bought a set from Sears for my MGB restoration - the chasers are *much* easier to use on existing threads. Check this out - A thread chaser is essentially a slightly undersized tap that will clean threads without removing any metal. It should be used on any old parts where bolt ... With detailed info available at - http://www.advanceautoparts.com/english/youcan/html/res/res20021201tr.html Good luck! Larry T (67 MGB, 74 911, 78 240D, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net Weber Carb Info http://members.rennlist.com/webercarbs Porsche Road Test http://members.rennlist.com/roadtest/ . - Original Message - From: Jim Cathey [EMAIL PROTECTED] To: [EMAIL PROTECTED]; Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, August 28, 2006 12:58 PM Subject: Re: [MBZ] Problem with threads on rear hub What I fear is that the threads in the hub are too sloppy to engage the threads properly. And looking at the cost of a new hub is a shock! I cleaned up the threads in my 190D with a tap. So far, so good. A used hub is an excellent alternative, they very rarely go bad. -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.11.6/428 - Release Date: 8/25/2006
Re: [MBZ] Problem with threads on rear hub
You don't happen to know what the tap specifics are for the wheel lug bolts do you? And where does one find a tap in these days of big box stores with 80% of what you need? If the threads are already too big a tap won't help much. What to do in that case I wonder? ...Kevin Jim Cathey said: What I fear is that the threads in the hub are too sloppy to engage the threads properly. And looking at the cost of a new hub is a shock! I cleaned up the threads in my 190D with a tap. So far, so good. A used hub is an excellent alternative, they very rarely go bad. -- Jim -- Thank God for Microsoft -- Linus Torvalds
Re: [MBZ] Problem with threads on rear hub
Kevin J. Slater wrote: If the threads are already too big a tap won't help much. What to do in that case I wonder? Helicoil?
