Engine shaking problem e30
My first post and need a bit of tech advice from anyone who may know.
Have a 1990 BMW 316i coupe. E30 shape with an M40 Engine
The thing is the engine seems to shake/vibrate in a cyclical way. It does this while driving and idling. The vibration can be felt through to the steering wheel and when siting in the driver seat too. The shaking/ vibration cycles through being steady for a second, then shaking for 1 to 1.5 seconds
I know that if I don't try sort it out know, I'll be selling a kidney to get it repaired later on.
I ain't the most clued up when it comes to engines, but I've made a start and checked a few things out, to tick off the list.
Have checked the rotor arm, distributor cap and ignition coil. They all seem in good condition. Have put in a second set of spark plugs but still the same cyclical shaking.
Have recently changed all the belts (timing, PAS and alternator). Also changed the gearbox/ transmission oil and changed the engine oil with to 5w40 synthetic oil.
Engine coolant leak was fixed and the coolant level has been constant for some time.
Had new engine and gearbox mounts put in about 8 months ago.
Not sure what else I can change myself.
Would appreciate any advice on what might be causing the problem.
Last edited by bimmer1990; 09-30-2008 at 08:58 AM.
Reason: hit the wrong key, and posted to early