4 replies to this topic

[WillsMini]

Mini City 1000 1985.
I have to keep replacing the rear exhaust hanger on my car, the cotton reel type, as it keeps giving up.
When I first had the car I removed the upper engine mount as I took it to be a retro fit part and it was causing other problems. This was about 6 months ago and caused no trouble before but I suspect that this may be causing this problem.
I am wondering if any other of you have or had this problem and whether there is a different solution. I don't particularly want to put the mount back unless I have to and not without some modification as the threaded bar rubs against and cuts into a rubber pipe that runs from the carb to the rear of the engine.
Any ideas anyone?
Thanks in advance.

[silve1999]

which upper engine mount? 

does your engine move if you push it hard or rev whilst stationary?

 

to be honest you shouldnt be going through rear exhaust hangers unless other hangers are bad or missing, may want to check all other mounts for movement and wear as well?

Edited by silve1999, 26 September 2014 - 09:02 AM.

[Cooperman]

Does the exhaust mounting at the front of the rear sub-frame, known as the 'choc-block mounting' fail as well? That is the mount which takes most of the exhaust loads and the rear 'cotton reel' just supports the weight of the rear silencer, so should not be carrying much load.

You can fit a pair of 'cotton reels' and make up a support bracket to enable the weight of the exhaust to be spread across both. You can also make up a strap from a piece of 1" wide steel strip and fit that under the pipe using a pair of cotton reels mounted vertically. That is what some competition cars have with two cotton reels horizontally and two vertically. That solves all the problems.

Check the 'rocking' of the engine as advised above. It should not rock more than around 1/4" maximum. If it does, re-fit the extra engine steady as they are the solution to a lot of exhaust failure issues, usually at the joint under the carb.

[WillsMini]

Thanks guys. Always ready with good tips. Will check other mounts as soon as.

[Dan]

Is the front exhaust clamp fitted? The one that clamps it to a strap coming from the gearbox?