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#1 (permalink) Old 12-03-2004, 06:11 AM
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I am an ex mechanic and posses a sound knowledge of most engines, however my knowledge of bmw is limited.
I have a bmw 5 series 520i 1997 e39, Not long after buying it the big ends began knocking and I had a 525i engine put in.
Just recently the vanos unit began knocking.
On top of that the fan clutch failed a while ago causing the engine to overheat.
I changed the fan assembly and thought I had solved the problem, since then I am losing water, not externally and need to top up every week or so to prevent overheating.
I have a milky white residue on the oil filler cap and white smoke billowing out in the mornings(all the symtoms of a blown head gasket)

My questions are as follows:

1: Does anyone know if an adjustment will solve the vanos problem?
2: Does anyone know if the symtoms I have described are common for anything other than a blown headgasket?
3: I have the bmw TIS cd rom but how complex is the head and vanos units removal/relacing procedure and can it be done with out the bmw specialised tools?



Thanks,

James
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#2 (permalink) Old 12-03-2004, 04:18 PM
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James :1st , I did change a whole engine on my E39 after a flood.
The only thing I had to do was minor adjustments. I used a kit with A. a crankshaft Locking Pin B. a Large Bush threaded. C. a Vanos wrench to turn the exhaust cam sprocket and secondary chain when installing the Vanos adjustment unit with plate springs on some engines.

Not sure how useful the above in your case but surely you are mixing water with oil plus steam- a solid sign for a head job.

good luck
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