[Duncan]

I have just got a 91 1.8 manual and am trying to diagnose a rattle from the engine compart...

I have just got a 91 1.8 manual and am trying to diagnose a rattle from the engine compartment.

What I have discovered so far is that a lot of noise can be generated from the rubber accessory belt, the noise usually comes from a small shock absorber connected to the tensioner. However my 1.8 doesnt have one of these. The belt is very worn and cracked etc so hopefuly a new one will quiet it down.

The other noise problem can come from a worn timing chain tensioner. These are cheap to replace and are accessable from behind the alternator. I have yet to take my alternator off to check mine.

If your water pump is worn I would imagine this will also be noisy.

 

[Duncan]

Thanks for the info on the Tensioner.The noise has nearly all gone since I put a fresh b...

Thanks for the info on the Tensioner.
The noise has nearly all gone since I put a fresh belt on, but there is a definate rattle at low revs. I will probably fit a shock as they are quite cheap.

I'm currently trying to track down a hesitation problem.

The engines in these cars are pretty complex!

Hey, Babybenz are you Ahzari from the mercedesshop forum?