It's a wonder the engines lasted longer than the cars; although, I understand the few that are left are in high demand by drag racers for some reason.
--R archer wrote: >> On 9/28/07, archer <[EMAIL PROTECTED]> wrote: >> >>> GM built a small car; I forget its name; which had aluminum >>> blocks/heads made of high silicon aluminum IIRC. The high silicon >>> aluminum >>> cylinder walls were supposed to wear well but they didn't. >>> >> Wasn't that the Vega? BMW had the same problem with the 3-liter and >> 4-liter V-8s in '94 and '95 5-series and 7-series cars. Never heard >> of any head problems with those, but many people got a free short >> block under an extended warranty (with redesigned cylinder liners made >> of a new, improved alloy). >> > ----------------------------- > I think that was the Vega. It seems like GM installed steel liners in the > Vega engines as a fix. > Steel can be heat-treated to take the stresses out of forgings and molded > parts but I've forgotten whether aluminum and cast iron can be heat-treated. > It would seem like heat-treating aluminum heads (if that's possible) would > decrease the likelyhood of cracking. > Gerry > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
