[Subscribe to Daily Digest] |
 | [Main General Bulletin Board | BBFAQ |
Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Question about the 9-3 engine block Posted by Gene N [Email]  (#1094)  [Profile/Gallery]
(more from Gene N) on Mon, 4 Nov 2002 09:25:45
In Reply to: 9-3 engine on display at Tech Session, paul de k, Sun, 3 Nov 2002 15:45:30 Members do not see ads below this line. - Help Keep This Site Online - Signup |
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...
, Mon, 4 Nov 2002 09:25:45 <-- Viewing This Message, Mon, 4 Nov 2002 11:50:13, Mon, 4 Nov 2002 14:20:16
, Sun, 3 Nov 2002 19:05:42
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
