Question about the 9-3 engine block - Saab General Bulletin Board - Saabnet.com
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One thing that I have been searching for is for information about the new engine block. It's supposed to be all aluminum, and I was wondering what GM was doing for the cylinder bores. Are they using an alloy with a high silicon content and then acid etching the cylinder walls? I've never heard any mention of iron sleeves, and of course the phrase "all aluminum" would seem to rule out that possibility.
The reason I'm asking is, talk to a high mileage Saturn owner and you will finde that some of them have no problems, but there are an alarming number of owners dumping a quart of 10W-50 in their cars every 700 miles because of excessive bore wear. And, with that kind of block, there is no boring or honing possible.
And of course, everyone older than about 45 new someone in the 70's that owned a Chevrolet Vega, GM's first shot at what was to be an all aluminum engine. They had to switch to an iron head to hold the engine together, and the aluminum block would score at the slightest provication.
posted by 155.104.24...
Posts in this Thread:
- 9-3 engine on display at Tech Session, paul de k, Sun, 3 Nov 2002 15:45:30
- Re: 9-3 engine on display at Tech Session, Peter Granet, Sun, 15 Nov 2015 14:36:48
- Re: 9-3 engine on display at Tech Session, patprice, Wed, 6 Nov 2002 21:24:13
- It really was covered..., Stephen Goldberger, Tue, 5 Nov 2002 10:51:36
- Question about the 9-3 engine block, Gene N
, Mon, 4 Nov 2002 09:25:45 <-- Viewing This Message - Lots of good info. Thank you. n/m, Anders, Sun, 3 Nov 2002 18:14:39
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