Guest Want aZ Posted April 28, 2003 Share Posted April 28, 2003 Norm, Was just wondering and I dont know if the 240, 60, 80 engine will let you do this, but has enyone ever thought about splayed main caps, i.e. 4 bolt main caps...I know that it can be done on SB Chevy, and Ford. Is there enough material outside of the current main bolts to do this on the 40, 60, 80? I cant answer this myself as I dont have an engine, YET. It would add more stability to the bottom end and partially eliminate / stabilize crank flex. It does seem like this could be a solution, or at lease a step in the right direction... Damon Quote Link to comment Share on other sites More sharing options...
Guest norm[T12SDSUD] Posted April 28, 2003 Share Posted April 28, 2003 As far as I can tell by looking at the main caps,there really wouldn't be enough area left to the right or left of the bolt hole to redrill another hole. later,norm Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted April 29, 2003 Share Posted April 29, 2003 So who is pitching cranks out of engines? That is the only reason I can see for having a 4 bolt main. Quote Link to comment Share on other sites More sharing options...
Guest norm[T12SDSUD] Posted April 29, 2003 Share Posted April 29, 2003 I don't think anyone is pitching cranks, I just think he meant a 4 bolt would prevent the crank from causing the main bearing cap walking. One solution is to use the diesel main bearing cap bolts that torque to 58 ft lbs. I used these and although the crank did break after years of violent abuse, the mains did not walk as they had did in the past with the standard main cap bolts. later,norm Quote Link to comment Share on other sites More sharing options...
Moridin Posted April 30, 2003 Share Posted April 30, 2003 Norm, I don't know if you've seen any this, but This thread reappeared in another discussion. They talk about different dampeners and a few things of the sort. Supposedly ATI manufactures one specifically for the L series motors. Quote Link to comment Share on other sites More sharing options...
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