Date: Thu, 25 Aug 2005 13:26:28 -0400
From: Malt_Hound <""Malt_Hound\"nospamm-me not*yahoo.com">
Subject: Re: Massive Loss of Oil... Did I kill her? (loooong)


Grunff wrote: > Chris Campbell wrote: > >> A few days ago I installed an MBC+A in my beloved '94 Saab 9000CSET >> (An MBC is a manual boost controller, for those of you who aren't >> performance savvy... I bought it to replace a bad BPC so I'd get stock >> boost levels again). > > > I'd like to take this opportunity to ask a question (and I'm not having > a go Chris, honest). Why do people install MBCs on APC equipped Saabs? > What exactly is the point? > > >> I babied her the 25 or 30 miles to my college and all along the way I >> was VERY nervous, almost like I could feel her pain. > > > Ouch. That's a fair distance to drive with a dry top end. > > >> So, My only question is this: Did I do irreversible damage having >> driven 25 miles down 2-3 quarts of oil? (It was Mobil 1 if that makes >> a difference) > > > Well, the good news is that the bottom end will be just fine. The bad > news is your turbo's fried, and you may have damaged the camshaft + > bearings. > > At the very least you're going to need to replace the turbo bearings > (that whine won't get better). You may or may not need to do some work > on the head - that remains to be seen. > > BTW, that noise you were hearing was the hydraulic lifters run dry. > There may also have been some chain slap, since the hydraulic chain > tensioner would have also run dry. > The timing chain tensioner has a ratchet mechanism to prevent it from retracting once it has extended, so even if the oil pressure was low the chain should have remained close to the correct tension and should not have been slapping. I'm stretching a bit here.. but ISTR the balance shafts' chain tensioner might be oil pressure only. Not positive, but it is a much smaller chain with less stress on it. -- -Fred W Toys for sale, Hey get your toys here: <http://users.adelphia.net/~fredwills/>

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