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Tim, before you even suggest that Chuck Andrews and company are doing anything other than providing a needed service , you should do your homework. Of course, they are a business, and as such, have to charge for their services. I doubt very much they perform work unnecessarily, merely to generate revenue. If you read this board regularly, you will realize there is plenty of work out there for solid, honest, qualified, independent SAAB specialists. What Andrews and company have also done is provide a wealth of qualified , technical information (for no charge I might add) to all of us SAABites that are interested, and in many cases absolutely need. Have you ever seen comprehensive information from other sources (such as SAAB themselves) that provide so much education on the issue of engines for our cars? Feel free to ignore it, your call. But I can personally vouch for, and would recommend Chuck Andrews services to any SAAB owner. As for your question Tim, about evaluating timing chain. If you have top end noise, or suspect you have a problem, there is a tensioner on the top backside of the engine(belt side) . Following instructions, you can remove that and measure the extension of the tip. That will tell you if your chain has stretched . There are max numbers allowable, that if exceeded, point to replacement. Balance shaft chains. That is another story. No way to measure them from outside, but if your timing chain is stretched beyond allowable spec, your balance chain is probably in the same condition. In fact , SAAB TSB on this recommends a complete replacement of all timing chain and balance shaft chain bits and pieces if that spec is exceeded. Regards, Tom S.
posted by 166.68.134...
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