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Re: 2.3 NA balance shafts chain - lifespan? >> Posted by SWEDECAR [Email] ![]() ![]() ![]() In Reply to: 2.3 NA balance shafts chain - lifespan? >>, BobD, Thu, 11 Nov 2004 09:56:04 Members do not see ads below this line. - Help Keep This Site Online - Signup |
It's no rhyme or reason in when and if the balance shaft sprockets go bad.
And it has no connection to if the oil had been changed on a regular basis or not.
Most cars I have seen (95%) had a squeky clean inside (indicating regular oil changes) but the balance sprockets were trashed.
"Most" people would hardly notice the rattle or extra vibrations when the sprockets goes bad due to that it happens so slowly and the driver gets used to the noise.
And when the engine rattles, it is too late anyway because it means that the chain have already start to slip (rap) over the teeth on one or both balance sprockets.
First of all, make sure the oil pressure light is working on dash board (little red oil can).
When you have the next oil change done at a Saab mechanic (not quick lube places), ask him to remove the oil pressure reducer valve and inspect for scratches/scraping. Also have hime open up and study the oil filter paper media for metal pieces.
This is a service I do for free for my customers when doing an oil change since it is so easy and can save the customer money in the long run.
Anders
posted by 67.113.8...
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