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Discussion Starter · #1 ·
('96 9k 2.3 CSE fpt)

Hi all - the car's been running fine so not much from me recently... BUT this morning I started her up and had this godawful noise clattering/rattling coming from the timing chain side of the motor...

The question is:

Does timing chain rattle start slowly or can it just start without warning?

So far the engine's been very quiet, doesn't use any oil and is due for oil/filter change about now.

My thought is that as the noise started spontaneously then it might be a tensioner issue... I can't tell from my service history if the timing chain has been previously changed so I'll have toa ssume not..

Any thoughts or suggestions would be gratefully received - what a way to spend a bank holiday weekend eh!

Cheers

Greg
 

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How many miles has the car done ?

If it has had regular oil/fiter changes every 12k ( at the most ) using a good quality semi/fully synthetic oil then the chain should last at least 100k ( mines done 162k on the orig chain with no rattles ).

I wouldn't be too concerned about rattling from cold but once it has warmed up blip the throttle and listen for a rattle on the over-run.

Then again if the noise started spontaneously it may be an oil-starvation issue - Wonder if the oil pump is on the way out ?
 

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I have the same problem, and I haven't yet got the bottom of it. Mine started doing that, suddenly, one cold morning, and is getting worse. Now I can hear it rattling at about 2000 rpm when the engine is warm. I really hope it's a tensioner issue too! The belt is noisy, so who knows?

My last specialist - who I've "fired" - said chains, but fingers crossed they are wrong.

I am waiting till I either get a chance to take it to DCA or Jamsaab or someone who knows what they are talking about, or until I get a chance to remove the belt and run it and see if the rattle goes away, whichever happens first!

Interesting (but scary) comment about the oil pressure, although I've never seen the warning light.
 

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From my past (non Saab) experience, oil lights come on so that when you're parked on the side of the road with a dead lump, you can see why it was!

Why they don't come on at say 35 to 40 psi or as approrpriate instead of 2 psi which seems to be nearer what happens.

David.
 

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Discussion Starter · #5 ·
Hi ...

Thanks for the replies so far..

Like a dumkopf I forgot to say 113k miles, Valvoline (synth semi or dino?)at 105k, current oil level midway on the stick with no top-up since the last fill...

My first thought was timing chain, but what about an alternator bearing or water-pump maybe??

My local indie said it's likely to be the balance chain, but he also said that it's an engine out job to repair (I didn't think so??) I just want to avoid spending £250 on bits curing a 'problem' I dont have ..

John - interesting to hear we might have the same noise, maybe we ought to compare !


Cheers

Greg
 

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As per various other posts - we're 100% sure it doesn't have to be an engine out job. You work mainly through the RHS wheelarch.
You just have to watch you don't damage the head gasket when removing/replacing the front cover.
 
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