Evo Piston and Valve info please
Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
Buy the pictures you breather appears to be okay. As for the needle bearings and rollers on the lifters that's a lot of metal that went through that motor and at that point I'm not sure what your Sprocket bearing or connecting rod bearings look like.. With that you have no idea how many needle bearings went down into the case on the pickup side and went into the oil pump you got to take that apart too.. Might be a little preliminary but this whole thing is coming apart... The fact that that roller and camshaft got ground down so much just tell me there's a lot of powder metal that went through that entire engine and a couple of the first things to get oil are your crank and connecting rod bearings so I think it's all coming apart.... Sorry dude..
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Intermediate
Joined: Jun 2008
Posts: 27
Likes: 4
From: West Oz
Buy the pictures you breather appears to be okay. As for the needle bearings and rollers on the lifters that's a lot of metal that went through that motor and at that point I'm not sure what your Sprocket bearing or connecting rod bearings look like.. With that you have no idea how many needle bearings went down into the case on the pickup side and went into the oil pump you got to take that apart too.. Might be a little preliminary but this whole thing is coming apart... The fact that that roller and camshaft got ground down so much just tell me there's a lot of powder metal that went through that entire engine and a couple of the first things to get oil are your crank and connecting rod bearings so I think it's all coming apart.... Sorry dude..
Last edited by 08FXSTC; Apr 4, 2022 at 07:33 AM.
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Intermediate
Joined: Jun 2008
Posts: 27
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From: West Oz
Am a bit relieved actually, it ran pretty well without any unusual noises, I wasn't intending to pull heads off etc. it was a spur of the moment type thing.
Road Captain
Joined: Mar 2008
Posts: 712
Likes: 55
From: Punta Gorda, Florida
Wiseco is revamping their website which is why many of the links found on a Google search are broken. Theres no info on the website yet regarding Evo pistons although they still make them which I confirmed with a phone call last Friday. You can still get some tech specs online from vendors who sell their products.
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