Re: [MBZ] Very loud knocking noise in my W123 300TD

MB dealer flex discs last years and years, in my experience. That's why I only buy suspension and drive line rubber from the dealer, anything else is a false economy. -- Max Dillon Charleston SC '87 300TD '95 E300 ___ http://www.okiebenz.com To search

Re: [MBZ] Very loud knocking noise in my W123 300TD

To make one or two you'd end up costing multiples what you'd pay to just buy them. Liquid polyurethane makes a foam, not strong enough. Remember sheer strength is required here. Durometer on these must be 100 or more... To make the volume required to make it economical you'd need to sell them

Re: [MBZ] Very loud knocking noise in my W123 300TD

Fair enough, but considering how often the stock ones wear out a bit of retrofitting with some nice Spicer u joints would seem even more prudent. On Jul 15, 2017 6:10 PM, "Peter Frederick via Mercedes" < mercedes@okiebenz.com> wrote: > Fair enough, but considering how often they wear out, a bit

Re: [MBZ] Very loud knocking noise in my W123 300TD

I suspect they are Kevlar re-inforced, similar to tire sidewalls. Not worth the effort to repair or reverse engineer. Considering the failure of the front one can total the car and seriously injure the occupants, I'd feel much better with a genuine Benz replacement Peter

Re: [MBZ] Very loud knocking noise in my W123 300TD

Are these flex disc things really that hard to reverse engineer? Buy some proper durometer liquid rubber, put some sort of reinforcement mat in there, fill it up, hit it with the detail sander to shake the bubbles out (or stick it in the vacuum chamber while it sets), and voila. Do the fibers

Re: [MBZ] Very loud knocking noise in my W123 300TD

> On July 14, 2017 at 11:28 PM Scott Ritchey via Mercedes > wrote: > > > My bad. I remembered wrong: The FCP flex disks (for w126) were Febi > Bilstein (FCP only claimed they were OEM). The box says assembled in Germany > from German and Polish parts. The actual

Re: [MBZ] Very loud knocking noise in my W123 300TD

tch Haley <mi...@mitchellhaley.com> > Subject: Re: [MBZ] Very loud knocking noise in my W123 300TD > > > > On July 14, 2017 at 5:30 PM Scott Ritchey via Mercedes > <mercedes@okiebenz.com> wrote: > > > > > > The OE flex disks I got from FCP were Lem

Re: [MBZ] Very loud knocking noise in my W123 300TD

Seems like a lot if trouble to take. Most dealer parts are in those awesome plastic bags. Now that's cachet, as George Costanza would say. On Jul 14, 2017 7:21 PM, "Dan--- via Mercedes" wrote: > A lot of Lemförder stuff I've seen just has the tristar ground off of the >

Re: [MBZ] Very loud knocking noise in my W123 300TD

A lot of Lemförder stuff I've seen just has the tristar ground off of the part. If it's Lemförder that's great, because I've had a heck of a time finding their stuff any more. It seems like there's less and less you can find under their name as time goes on. -D > On Jul 14, 2017, at 6:36

Re: [MBZ] Very loud knocking noise in my W123 300TD

> On July 14, 2017 at 5:30 PM Scott Ritchey via Mercedes > wrote: > > > The OE flex disks I got from FCP were Lemförder. Original equipment, as in star marked by Mercedes Benz? Mitch. ___ http://www.okiebenz.com To search list

Re: [MBZ] Very loud knocking noise in my W123 300TD

t; Cc: Andrew Strasfogel <astrasfo...@gmail.com> > Subject: Re: [MBZ] Very loud knocking noise in my W123 300TD > > Me too. I even called them to ask. The rep claimed that it's the same mfr. > as > the Mercedes specs. > > On Fri, Jul 14, 2017 at 2:01 PM, Dan--- via Mer

Re: [MBZ] Very loud knocking noise in my W123 300TD

I bought him off. Two jars of pepper jelly were all that I needed. He went down FAST. On Fri, Jul 14, 2017 at 2:13 PM, Dan--- via Mercedes wrote: > ...and that would be? > > Let's see when they show up if there is anything identifying who made them. > > Don't get me

Re: [MBZ] Very loud knocking noise in my W123 300TD

...and that would be? Let's see when they show up if there is anything identifying who made them. Don't get me wrong, I'm not a parts snob. If I can get a Lemförder part instead of the dealer's, I'll go for it - but I know what I'm getting there, too. So many of these aftermarket and even OEMs

Re: [MBZ] Very loud knocking noise in my W123 300TD

Me too. I even called them to ask. The rep claimed that it's the same mfr. as the Mercedes specs. On Fri, Jul 14, 2017 at 2:01 PM, Dan--- via Mercedes wrote: > Say what they want, I'm curious to see who the manufacturer of FCP Euro's > "OEM" is. > > And I'm a very

Re: [MBZ] Very loud knocking noise in my W123 300TD

Say what they want, I'm curious to see who the manufacturer of FCP Euro's "OEM" is. And I'm a very satisfied FCP Euro customer, I might add. -D > On Jul 14, 2017, at 1:25 PM, Andrew Strasfogel wrote: > > I ordered OEM flex disks from FCP Euro (thanks, Kaleb) for 1/3

Re: [MBZ] Very loud knocking noise in my W123 300TD

I ordered OEM flex disks from FCP Euro (thanks, Kaleb) for 1/3 the dealer list price. I have never complained about dealer mark-ups, btw. I just prefer to pay less. On Fri, Jul 14, 2017 at 1:15 PM, Dan--- via Mercedes wrote: > I'm all for saving a buck, without

Re: [MBZ] Very loud knocking noise in my W123 300TD

I'm all for saving a buck, without question. I also recognize when it's false economy. I did flex discs, center bearing and carrier on the 300SEL. I paid for MB flex discs, bearing, and a Corteco bearing carrier. I could have saved around $150 by going aftermarket, but looking at the

Re: [MBZ] Very loud knocking noise in my W123 300TD

The impression I get when Andrew posts a question is that he already knows the answer or has already made up his mind about what he is going to do. I am guilty of this at times when I am looking for support or agreement with something I have done or am going to do. I think the difference is

Re: [MBZ] Very loud knocking noise in my W123 300TD

Pix! Very impressive damage to a 126. http://www.dieselgiant.com/Mercedes%20flex%20disc%20failure.htm - Max Charleston SC On Fri, Jul 14, 2017 at 11:47 AM, Curt Raymond via Mercedes < mercedes@okiebenz.com> wrote: > Actually it looks like I was right: http://www.benzworld.org/ >

Re: [MBZ] Very loud knocking noise in my W123 300TD

AFAIK the center support bearing and front flex are original to the car. Nothing wrong with my attitude - trying to strike a balance between extravagance and foolish thrift. On Fri, Jul 14, 2017 at 11:39 AM, Meade Dillon via Mercedes < mercedes@okiebenz.com> wrote: > Bingo... I was about to

Re: [MBZ] Very loud knocking noise in my W123 300TD

edes Discussion List <mercedes@okiebenz.com> Sent: Friday, July 14, 2017 11:42 AM Subject: Re: [MBZ] Very loud knocking noise in my W123 300TD If the motor/transmission and/or diff mounts allowed enough motion to let the driveline escape the center bushings then I'd expect all manner of chaos.  But

Re: [MBZ] Very loud knocking noise in my W123 300TD

Sent: Friday, July 14, 2017 11:42 AM Subject: Re: [MBZ] Very loud knocking noise in my W123 300TD If the motor/transmission and/or diff mounts allowed enough motion to let the driveline escape the center bushings then I'd expect all manner of chaos.  But if everything else is working right...

Re: [MBZ] Very loud knocking noise in my W123 300TD

I have seen several trashed driveshaft tunnels due to flex disk failure. Sent from my iPhone On Jul 14, 2017, at 10:33 AM, Jim Cathey via Mercedes wrote: >> >> Remember if the flex disk fails at speed it trashes the car > > > I don't see this. That's why this

Re: [MBZ] Very loud knocking noise in my W123 300TD

If the motor/transmission and/or diff mounts allowed enough motion to let the driveline escape the center bushings then I'd expect all manner of chaos. But if everything else is working right... The drive flanges are in-plane, the worst I'd expect is a lot of noise but no real damage. Unless

Re: [MBZ] Very loud knocking noise in my W123 300TD

Bingo... I was about to post something similar. - Max Charleston SC On Fri, Jul 14, 2017 at 11:38 AM, Curt Raymond via Mercedes < mercedes@okiebenz.com> wrote: > At some point if you keep up your actions nobody will want to help you > any more... >

Re: [MBZ] Very loud knocking noise in my W123 300TD

AM Subject: Re: [MBZ] Very loud knocking noise in my W123 300TD I ask for help b/c that's what this group is all about.  I never claimed to be an expert.  You need a timeout.. On Fri, Jul 14, 2017 at 11:23 AM, Curt Raymond <curtlud...@yahoo.com> wrote: If you're God's gift to the 123 w

Re: [MBZ] Very loud knocking noise in my W123 300TD

On a 124, failure of a front flex disc at speed can allow it to thrash around (driven by the forward motion of the car via the differential) with such violence that the airbag(s) will deploy. The tunnel area just behind the transmission gets beat all to hell, there are pix of the mess on Peach

Re: [MBZ] Very loud knocking noise in my W123 300TD

> > Remember if the flex disk fails at speed it trashes the car I don't see this. That's why this driveline: A) is captive, and: B) has center bushings. -- Jim ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To

Re: [MBZ] Very loud knocking noise in my W123 300TD

I ask for help b/c that's what this group is all about. I never claimed to be an expert. You need a timeout.. On Fri, Jul 14, 2017 at 11:23 AM, Curt Raymond wrote: > If you're God's gift to the 123 why do you ask for help? I remember a time > when you bragged about your

Re: [MBZ] Very loud knocking noise in my W123 300TD

If you're God's gift to the 123 why do you ask for help? I remember a time when you bragged about your cars. Now you won't spend an extra hundred bucks. How many miles have you put on your cars in that time? Curt Sent from Yahoo Mail on Android On Fri, Jul 14, 2017 at 8:08 AM, Andrew

Re: [MBZ] Very loud knocking noise in my W123 300TD

Hey, I've driven a 123 wagon continuously since 1989 and replaced several flex disks so I think I know what I'm doing. How does that work for YOU, Curt? On Fri, Jul 14, 2017 at 11:02 AM, Curt Raymond wrote: > Remember if the flex disk fails at speed it trashes the car,

Re: [MBZ] Very loud knocking noise in my W123 300TD

Remember if the flex disk fails at speed it trashes the car, this is false economy. Let's think back to when you ignored the list advice and replaced just one sphere. How that work out for you? I'll remind you, all the warnings given to you here came true... Curt Sent from Yahoo Mail on

Re: [MBZ] Very loud knocking noise in my W123 300TD

Dan, the Price is $152 per from the dealer vs. $47 elsewhere for the flex disks. For the center assembly it's $150 vs. $27 (!!!) for Febi or Beck Arnley (Rock Auto). Febi is a decent brand and I am not going to keep the car forever. There are other cheaper brands I won't touch, e.g. Uro.. On

Re: [MBZ] Very loud knocking noise in my W123 300TD

Febi/Bilstein is a German company, however, that doesn't mean that's where the parts come from. I've seen Febi parts that are from China and Taiwan. Again, I understand the desire to save a buck, but this is not a place I would be cutting corners. Corteco makes a very high quality center

Re: [MBZ] Very loud knocking noise in my W123 300TD

Thanks. Importec sells Febi brand which IIRC is German. On Fri, Jul 14, 2017 at 9:59 AM, Kaleb C. Striplin via Mercedes < mercedes@okiebenz.com> wrote: > I would be shopping at importecautoparts.com or fcpeuro.com > > Sent from my iPhone > > > On Jul 14, 2017, at 8:41 AM, Andrew Strasfogel

Re: [MBZ] Very loud knocking noise in my W123 300TD

I would be shopping at importecautoparts.com or fcpeuro.com Sent from my iPhone > On Jul 14, 2017, at 8:41 AM, Andrew Strasfogel wrote: > > Was diagnosed as broken center drive shaft support bracket. Also must > replace drive shaft bearing and front and rear flex

Re: [MBZ] Very loud knocking noise in my W123 300TD

Do not cheap out on rubber parts or you'll be doing this job again in under five years. Flex discs from Mercedes aren't that expensive in most cases. Front flex disc is around $125 from the dealer, I believe. Rear is the same. Febi and Beck-Arnley will be cheap Chinee stuff. -D > On Jul 14,

Re: [MBZ] Very loud knocking noise in my W123 300TD

Was diagnosed as broken center drive shaft support bracket. Also must replace drive shaft bearing and front and rear flex disks. The flex disks had been replaced with substandard brand. Are Febi or Beck Arnley decent? OEM bearing bracket is triple the price of Febi or Beck Arnley ($150 vs.

Re: [MBZ] Very loud knocking noise in my W123 300TD

Maybe an cv joint going bad? Sent from my iPhone > On Jul 13, 2017, at 10:35 PM, Andrew Strasfogel via Mercedes > wrote: > > Loudest in first gear under load. It's as if someone is banging underneath > with a hammer. Tends to diminish and go away as I move up through

Re: [MBZ] Very loud knocking noise in my W123 300TD

If Andrew is lucky, just a flex disc is at fault, _AND_ he will get it fixed prior to catastrophic failure. Flex discs are the weakest link and require periodic replacement, and as a bonus a bad flex disc can be determined with a visual inspection. - Max Charleston SC On Fri, Jul

Re: [MBZ] Very loud knocking noise in my W123 300TD

Yeah, and I wouldn't be driving it much like they, either. Driveline failures at speed tend to be catastrophic. -D > On Jul 14, 2017, at 7:41 AM, Meade Dillon via Mercedes > wrote: > > Something is wrong with the driveshaft or a half-axle. If you can make the > noise

Re: [MBZ] Very loud knocking noise in my W123 300TD

It's definitely a drive train component that's making noise when loaded/unloaded from what you describe. That would be U joints, flex discs and CV joints as far as I can think of. If you get the back end off the ground so you can turn the drive shaft and rear wheels it should be easy to

Re: [MBZ] Very loud knocking noise in my W123 300TD

Something is wrong with the driveshaft or a half-axle. If you can make the noise change by weaving side to side, it is a half-axle. If that has no effect on the noise, then either a flex disc, the center carrier bearing, or a u-joint is probably the cause. - Max Charleston SC

Re: [MBZ] Very loud knocking noise in my W123 300TD

That's what I fear. On Jul 14, 2017 1:25 AM, "Kevin Kraly via Mercedes" wrote: > CV joint? > Kevin in Hillsboro, OR > > Sent from my iPhone > > > On Jul 13, 2017, at 8:35 PM, Andrew Strasfogel via Mercedes < > mercedes@okiebenz.com> wrote: > > > > Loudest in first gear

Re: [MBZ] Very loud knocking noise in my W123 300TD

That's my guess. "This has been going on for some time" Nice to wait for something to get to the point of destruction. -D > On Jul 13, 2017, at 11:38 PM, Dimitri via Mercedes > wrote: > > Flex discs? > > Sent from my iPhone >

Re: [MBZ] Very loud knocking noise in my W123 300TD

Flex discs? Sent from my iPhone > On Jul 13, 2017, at 11:35 PM, Andrew Strasfogel via Mercedes > wrote: > > Loudest in first gear under load. It's as if someone is banging underneath > with a hammer. Tends to diminish and go away as I move up through the > gears. I

Re: [MBZ] Very loud knocking noise in my W123 300TD

CV joint? Kevin in Hillsboro, OR Sent from my iPhone > On Jul 13, 2017, at 8:35 PM, Andrew Strasfogel via Mercedes > wrote: > > Loudest in first gear under load. It's as if someone is banging underneath > with a hammer. Tends to diminish and go away as I move up

[MBZ] Very loud knocking noise in my W123 300TD

Loudest in first gear under load. It's as if someone is banging underneath with a hammer. Tends to diminish and go away as I move up through the gears. I crawled underneath and checked for loose exhaust pipe but everything seemed tight. The noise appears to come from the rear. This has been