The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: NorR65 on June 18, 2010, 04:00:35 PM

Title: R65 1981 Replace timing chain
Post by: NorR65 on June 18, 2010, 04:00:35 PM
While I am waiting for the timing kit to arrive I am planning how to change it. Have some of you replaced the chain without removing the exhaust? I have access to the lower bolt behind the front cover, with exhaust in place.
Title: Re: R65 1981 Replace timing chain
Post by: Bob_Roller on June 18, 2010, 05:40:11 PM
The front cover won't come off, if you have a crossover tube on the exhaust system at the front of the engine .
Title: Re: R65 1981 Replace timing chain
Post by: NorR65 on June 19, 2010, 03:48:54 AM
Ok, thanks.
I have a crossover tube in front of engine.
I replaced the exhaust last year, so removing it should be easy.
Title: Re: R65 1981 Replace timing chain
Post by: Darwin_R65 on June 19, 2010, 09:54:09 AM
Just remember all the tips and advice on exhaust removal located on the web and this website.
If the nuts are still tight after turning 1/4 turn STOP

STOP I say STOP

$$$$$$$$$$$$$$$$$$$$ will cost you lots of dollars otherwise.

The big exhaust nuts have a reputation for galling (seizing thread)

I failed to heed the warnings, and stuffed the threads on my head. I ended up buying a mod kit to repair the threads, but if you stop soon enough when things go wrong you can save things by hack-sawing the nuts off.

Otherwise it's a fairly simple straightforward job.

Also there's a lot of information on the web about whether to place the "fish-clip" rearward or forward.

Information I found was twin row chains have fish-clip plate rearward, and single row have fish-clip forward.

Some people make assumptions it's all the same.

Also use rags to block holes before removing the clip, I didn't and had to remove sump to retrieve parts.

John "been there broke that" Price.