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When was the last time you had the valves adjusted? It must be done every year, or roughly every 15k kms (valves are like 300 bucks a piece on the exhaust side, 200 on the intake - and it's the exhaust ones that burn up). Whoever is interested should do a careful compression test. Rebuilding these engines is exquisitely difficult and expensive (know from bitter, first hand experience), there are maybe 2 people in the country I would trust to do that (one being Markus Glarner).
Also, being a '91, it's the fastest of any US/Canadian spec M5, having a 3.91 diff.
Last edited by TheJuggernaut; 02-03-2007 at 05:44 PM.
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