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PeachParts Mercedes-Benz Forum (http://www.peachparts.com/shopforum/)
-   Diesel Discussion (http://www.peachparts.com/shopforum/diesel-discussion/)
-   -   Sadness... Broken Timing Chain on '81 (http://www.peachparts.com/shopforum/diesel-discussion/312232-sadness-broken-timing-chain-81-a.html)

47dodge 02-01-2012 06:51 PM
Hopefully you will be lucky, but do check the shaft that drives the ip, this was bent on one that I worked on that broke a chain. Chain broke from vacuum pump dropping in parts.

1980sd 02-01-2012 08:42 PM
Man, that's sad indeed :(

Dieterthediesel 02-02-2012 02:38 PM
I keep telling my friends with gassers to replace the timing chain every 125-130 miles.I do it regularly on all my cars and I've never had one break. My ex mechanic on the other hand had a beautiful S500 (w140) with 135,000 on it. I told him to change the chain and he laughed. Four days later I got a call asking if I could drive him home because his timing chain broke!:eek:

I tried not to laugh.....it was hard though:D

PackerEdgerton 02-02-2012 04:26 PM
If you really love the rest of the car, I'd find a donor engine, make sure it has a good compression and cylinder-leak-down (and coolant leak-down) test results, and then drop it in.

Sincerely,

PE

charmalu 02-02-2012 11:32 PM
Quote:
Originally Posted by Lambrettaman (Post 2876328)
My timing chain on my 1981 300TD with ~330k miles on it broke last week. This was the original factory chain. Car otherwise ran great. No oil consumption, no loss of oil in the incident.

I was accelerating lazily from a stop light when I felt a shaking in my right foot through the accelerator pedal and heard a clanking scraping noise and then the engine died.

The cam broke and it took out a couple towers.

My mechanic is recommending a motor transplant because it would cost about as much to get in and replace the cam and towers and chain. He's concerned that the teeth on the gears might be worn and that a replacement chain could be damaged and cause another failure.

Thoughts?

I'm thinking that my 6-year stint as a 123er is coming to a close. This car is in really nice shape. I'm amazed at the paint and chrome on these fabulous cars.

Part it out? Sell it as a project?

I just posted the following on the other thread you posted on, reading through this one, seems like you are going to jump in and keep her. and this not being your only set of wheels, this will give you something to do in your spare time. ;)


Sorry to hear about your engine loss, know that sinking feeling especially when you are out in the middle of no where cruising along at 65mph.
every valve hit a piston, broke the two front cam towers, one off at the base and the other just under the bearing. cracked the valve cover, twisted the rearmost rocker and cracked the head.

If the body is in good shape, why not locate a used engine, maybe up grade to a Turbo 617.952. I see them in PNP from time to time, and not all are junk. pulled one with 97K.
some time I have seen them on Craigs List.

If you are done with the car and it`s in good shape, shame to part it out. the inventory on these is thinning down on good one`s.
really not all that difficult to R&R an engine.


Charlie


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