Offshoreonly.com - Hustler 500efi engine tear down & Build Up

Quote:

Originally Posted by mmb (Post 3850747)

Did the crank look like that when you built it? With those lines in it?

That rear main is weird looking... almost like the main bore was out of round with the oil pump bolted on.

Naw the crank was smooth,The rod bearings were putting off a little metal,I sent picks and the bearings to Clevite and they said the bearings were doing its job, Everybody said that there was a lot of trash in the rod bearings ,That I didnt clean the motor on assembly,Clevite said it wasn't that much on the age of the motor , When I took the heads apart on the main shim under the valve springs was wearing,I think my X machine shop
put a non hardened shim along with the thin shims,thats were I saw some bronze in the head and filter/ oil,coming from.

The rear main we think is from the oil pump stud pulling on the cap making a gap in the bearing in that area,Ive seen it before.

The crank surface will polish up,The cam lobes polished up real easy,

I just took the heads and crank to Precision marine let them ck out the heads and crank,Ive been playing with the dart block and hopefully take it next weekend let them hone and sq deck it.Pistons should be in and mark can balance it,ill be ready to go then.

Rob

the other motor has 2 season on it and were going to ck the shims on the head on it too, the bearings are looking good on it,that motor I replaced everything in it on last build,

The rings ,Total seal, Not the gap less, I sent them the rings for the hell of it he said that the looked norm for the hours, the they were alittle beveled and had alittle cupping on the bottom,which I knew why anyway.They said keep doing what I was doing and make sure when the hone the block to follow Darts recommend procedure on honing.