Reply With QuoteLoose Harmonic Balancer ? Like a cracked keyway?
How does it run ?
535is engine noise..
Its sounds like this on idle, changed flywheels, clutch, rebuilt top end, new gearbox etc to no avail. With air con on its NOT as bad.
Big ends? What do you think?
http://s34.photobucket.com/albums/d1...t=DSCN1580.flv
And its been like it for about 4 years and 30000 miles, not much worst.
Major Contributor
Loose Harmonic Balancer ? Like a cracked keyway?
How does it run ?
Derek A.
90 535i 5 Speed - Style 5 17"
Runs perfect apart from this only on idle, once over 1000rpm its then smoother than my chat up lines and thats smooth. Def bottom end ive decided now, worst when engine is hot.
Never heard of a harmonic balancer...
Big, Big Time Poster
Have you got a mechanic's stetoscope?That should pretty well point out the source of the rattle.Good luck!
So many people have looked at it, yes its in the bottom end.
Think its either I put up with it or change the block (how long would that take?). Cant just change the engine as top end had a fortune spent on rebuild with performance cam, ported and polished etc etc.
Big Time Poster
My blue one makes almost exactly the same noise - it's the water pump on mine though..
You can feel it knocking through the block, and it sounds like bottom end too..
Although I'd have thought if you've had a head rebuild, you'll know your water pump is good!
Could be one of the crank bearings rumbling around in there?
If it's been like it for 4 years wihtout really getting worse, I'd take my time and source a decent bottom end for it - maybe even build a 'decent' one up..
Swapping it over should'nt take much longer than a straight engine swap - you just have to swap the head over to your new block & drop it all back in..
Day's work really, including tea breaks etc- although garages over here either a) wouldn't wana know or b) would charge a fortune & have the car a week at least :s
P.s. - I want your wheels!
Major Contributor
take off all your belts - see if noise is still there.
Harmonic balancer is pressed on the nose of the crank.
Derek A.
90 535i 5 Speed - Style 5 17"
3 Grand Master
surely if it was a big end,it wouldnt stay the same for thirty thousand miles!
Gone but not forgotten
Sounds very similar to my 220,000 mile 535i... interested in what you find out.
2 Grand Master
Ö_o I would be scared of wrecking something by driving it like that.
Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
southwest WA
Posting Permissions
