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  #1  
Old 01-04-2003, 03:05 PM
zeb zeb is offline
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Join Date: Dec 2002
Location: birmingham, england
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PLEASE HELP...............'89 420SE rattle

When my 420 is warm, occaisionally there is a rattle when i start up. I think it may be somethin to do with the oil pump but i am not sure. This rattle stops as soon as the oil pressure rises to full. What can i do to get this fixed. I remember at some point having this on my 380 at some point which is why i think it may be a common prob. I cjhanged the timing chain and tensioner cos i thought that was the cause, but it wasn't. I also know it needs an oil change again.

Is it serious or will it not take much to fix it.

Ta....
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  #2  
Old 01-04-2003, 03:37 PM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
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how long has it been since it had a chain?
sounds like a tensioner/guide rail/chain issue.


Joe
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  #3  
Old 01-05-2003, 08:03 AM
zeb zeb is offline
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I think i shell replace the chain. I think it is the origional one. it has done 120.000miles. How hard is it to change the guide rail??
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  #4  
Old 01-05-2003, 11:28 AM
it leaks, its german
 
Join Date: Mar 2002
Location: raleigh nc
Posts: 1,111
the rails aren't bad but, if you are not comfortable with messing with something that than cause serious engine and wallet damage, I'd find me a qualified shop to do the repairs. I would replace the cahin, guides X 4, tensioner and look hard at the cam gears, reseal the oil tubes for the cams at the same time. (cam gear wear is not much of a issue with the double row chains but, will wear if run for long periods with a worn chain)



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