328i E36 Engine Vibration
Discussion
I've got a 1996 328i manual and it has quite a pronounced engine vibration. You can feel it slightly at idle but its at its worst at about 1200rpm whether you hold it there or when it passes through either up or down. Its not misfiring as far as I can tell and it doesnt get worse the faster the engine is revving, I must say it feels like something in the engine is unbalanced so seems quite serious. Anyone had similar or got any ideas what it could be?
Edited by changingman on Sunday 10th May 16:12
As a starting point have a look at he vibration damper at the front of the engine, this is all part of the crankshaft pully assembly that drives the various auxillary units (PAS, waterpump etc). Inspect it carefully with the engine off, for cracks or any other wear. Also run the engine and check that it runs true without any obvious wobbling.
T-bagger said:
As a starting point have a look at he vibration damper at the front of the engine, this is all part of the crankshaft pully assembly that drives the various auxillary units (PAS, waterpump etc). Inspect it carefully with the engine off, for cracks or any other wear. Also run the engine and check that it runs true without any obvious wobbling.
I will do that, thank youI'd go with the fan first off, check for broken blades, and try to wobble it too.
As the water pump bearings wear out, it can shake about alot and it'd be at about the 2.5k mark it'd be most apparent.
It'd also be wise to have a look at the engine mounts, as both a worn mount, or a wobbly pump can mean the fan will hit the radiator resulting in a lot of steam and a big bill.
As the water pump bearings wear out, it can shake about alot and it'd be at about the 2.5k mark it'd be most apparent.
It'd also be wise to have a look at the engine mounts, as both a worn mount, or a wobbly pump can mean the fan will hit the radiator resulting in a lot of steam and a big bill.
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