rebuilt motor burning oil??
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Joined: Feb 2012
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rebuilt motor burning oil??
Hi everybody, i got a rebuilt 351w that has a new crank ,new main bearings ,new comp cam ,new cam bearings ,GT40 heads ,new timing chain, piston and oil rings, new oil pump ,and its bored.40 over. but i did the break in it has about 3500mils. It idles great and great but whenever step on the gas and get it up to like 4000rpm+ it looks like it might be burning some oil but i dont really think its to big of a deal but i just wanted to have some more input.
Thanks, Jack
Thanks, Jack
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
Could be that the rings didn't seat or the valve stem seals and guides are the problem. Loose intake bolts can be a source of oil in the intake tract too, allowing it to be sucked into the ports from the bottom side.
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
Must not be too bad or you would be mentioning amount of oil being lost. What oil are you running? Synthetic oils can lose a bit till engine is fully broken in. Moly rings can also take longer to seat. Make sure PCV system is hooked up and working properly. Good luck.
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