Date: Sat, 25 Mar 2000 19:27:30 -0500 From: John & Margaret Strowe <westornopsamick.net> Subject: Re: How to tell if engine has been rebuilt?
-----BEGIN PGP SIGNED MESSAGE----- This is not surprising for an original engine. I replaced the head gasket on my '93 9000 at about 90,000 miles. I could still see some of the original cross-hatch from when the cylinders were originally honed! I overheated my '84 900T at about 80,000 miles and warped the head. When I got it apart, I checked the two cylinders where the pistons were down. One cylinder had a just barely detectable wear ridge. The other one felt like it had less than a thousandth of an inch of wear in spite of this cylinder having a small crack in the head that was letting in a little water. Incidentally, these results are with conventional oil. I would not doubt that your engine is original. John Tom Reed wrote: Hi all, I finally got around to pulling the head on my '85 900T yesterday, and find that the lower portion of the engine shows no signs of wear. The odometer reads 300,370. The question is can this engine really have that many miles on it? How can I tell if someone's rebuilt the engine before I owned the car? The pistons are not stamped "oversize" as I understand they would be in an American make, but, then again, they are not stamped "standard" either. I'm sure one of you Saab experts must know how to figure this one out. If it does turn out to never have been rebuilt, it's a real testament to synthetic oil (I use AmsOil, and I think the previous owner used Castrol Syntech). Tom R. treednopsamux.csustan.edu "Long life to this tree, and may it prosper from this auspicious day. It's name shall be Albert." --Alice Liddell (March 10, 1863) -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.0.2 iQCVAwUBON1ZW4LLgRU96jMdAQFvaQQAp4adKGZzqO8xcGlvU5oWqnRtziquroTD fwOWvRGzjnLL1nhz3Y1VYfr9D9FOKQ0ztXKAB2w58ZBFDgCw0In+fbSmFebesqo+ OH7UHNd363EgBzoMItKzzQix3lT6GX2A52LnKJB7eoDEUZczeqHS7ExcYF/VMslw pxcN81xyGII= =oZWJ -----END PGP SIGNATURE-----