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Do these cam bearings make my oil pressure look low?
- Thread starter WarWagon
- Start date
Will L.
Well-Known Member
That's a high flow cam bearing- lets high volume of oil flow right past it...
3500GMC
What T F, over
Webs look pretty good despite.. I see maybe one little fracture unless it's just oil.
Meh bearings. Overrated.
Meh bearings. Overrated.
- Staff
- #4
Sealed power or latemodel clevites? Looks like bimetal main bearings, but tri metal cam bearings?
Twisted Steel Performance
Anything worth doing is worth overdoing.
The GEP I built a few years ago had the same type....
By the pics they don't look wore much...
By the pics they don't look wore much...
NVW
Well-Known Member
The Chinese block Bison sold me had cam bearings that looked just like those.
Twisted Steel Performance
Anything worth doing is worth overdoing.
You can buy them, lots of race motors use them..
3500GMC
What T F, over
What'd you guys do with Simon? He's been MIA here for a while.. (bison)
NVW
Well-Known Member
IDK, last I heard he was in a drought and said he may have to sell his bison herd.
Will L.
Well-Known Member
Dang I hope he's ok. Hate to see him loose his heard.
My 2004 optimizer came with GM stamped cam bearings in it. Crappy sectioned style. Wish I knew an outfit that made them full ring still.
My 2004 optimizer came with GM stamped cam bearings in it. Crappy sectioned style. Wish I knew an outfit that made them full ring still.
3500GMC
What T F, over
Thought Federal Mogul had em.. (?)
Got a new set on the shelf for a build, been a while since I gathered them up.
Can't remember if they were the full ring or not. Probably should check.
Got a new set on the shelf for a build, been a while since I gathered them up.
Can't remember if they were the full ring or not. Probably should check.
NVW
Well-Known Member
The Clevite's in my rebuild kit were full circle cam bearings IIRC
Will L.
Well-Known Member
This is it, #3 GM it spun. Came in my optimizer. Looks way worse since I popped it apart and egg shaped it in the process. The other 4 looked like they were 1 full piece and distorted bad before the seam on them popped.
Geez Tough Crowd...
So by the Military Manual we get a journal diameter of 2.164 - 2.166" with a clearance of 0.001 - 0.004"
So depending on camshaft bearing size we could have up to 2.170" measured bearing diameter.
Again the silver colored coating on these bearings is all but gone with only a little band left in the #1
The bearing size itself could be ok at 2.168"
But the cam journal is coming up small at 2.161". For grins I also moved the measuring device down until it was touching the ruler, 3 contact points, and same measurement.
Been awhile since I slept in a Holiday Inn or worked assisting a machinist measuring razor sharp 40-450 ton compressor rotors to verify the grinder wasn't screwing them up during machining. Yes: better tool for the job available, but, it's all the tools we got in the shed here.
Even at minimum camshaft diameter we are at the max clearance. I wonder if they make undersized cam bearings...
So by the Military Manual we get a journal diameter of 2.164 - 2.166" with a clearance of 0.001 - 0.004"
So depending on camshaft bearing size we could have up to 2.170" measured bearing diameter.
Again the silver colored coating on these bearings is all but gone with only a little band left in the #1
The bearing size itself could be ok at 2.168"
But the cam journal is coming up small at 2.161". For grins I also moved the measuring device down until it was touching the ruler, 3 contact points, and same measurement.
Been awhile since I slept in a Holiday Inn or worked assisting a machinist measuring razor sharp 40-450 ton compressor rotors to verify the grinder wasn't screwing them up during machining. Yes: better tool for the job available, but, it's all the tools we got in the shed here.
Even at minimum camshaft diameter we are at the max clearance. I wonder if they make undersized cam bearings...
Will L.
Well-Known Member
Hmmm....
Whatcha do see, is ya grab yer 8" grinder...
Whatcha do see, is ya grab yer 8" grinder...