Severe cam wear.....
09-17-2005, 04:42 AM
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Severe cam wear..... Just pulled my cam HotCam out and one of the lobes has severe wear. It has about 30k on it. When I say severe I mean that on one lobe where there is normal wear....on the side of the normal wear at the top of the lobe there is actual casting, like the shinny plating chipped off. Is my lifters fuckedor what. has anyone experienced this when doing a cam swap?
thanks.
thanks.
09-17-2005, 05:00 AM
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Only on SBC, and yeah I'd definately check the roller on that cam lobes lifter. Is it up front? Might get a glance at it if so, or try and get a borescope....(I will be ordering one next month).
09-18-2005, 02:09 AM
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Originally Posted by GuitsBoy
Do you mean spalling?
09-18-2005, 09:00 AM
#7
Originally Posted by Y2K SS
What's spalling???? Anyway as far as the lifters go, when I look at the casting area....its lower that the surface and it is rough so I dont think my lifter was running on it or it would be a lil smoothed out.
(Thanks to HSV-GTS-300)
(Thanks to bowtieman81)
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09-18-2005, 09:59 PM
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I had a similar problem when i pulled out my STOCK cam, during a camswap, here is a pic of it, its just on one lobe, and the rest of the wear on that particular lobe looks fine, but what an ugly tip of the lobe. anyways, thats after 8x,xxx miles, so it didnt cause a failure or anything, but i'm gonna be changing the lifters when i swap my heads, already bought new lifters.
09-18-2005, 10:08 PM
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Had the same problem as well. Turned out to be a bad lifter. In my case, the lifter actually gouged a path through the lobe. Left nice filings on the drain plug... 
09-18-2005, 11:41 PM
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Yup check out the lifters I had that same problem recently. and one of the lifter wheels was completely gone from it.??? go figure. So i replaced Lifters, cam, and put new headbolts, and new dual springs. went Comp R lifters, Prc Dual springs and 234/234 600./600. 114 Custom cam. Make sure you take the oilpan off. I messed up and just flushed the motor and well there was still debre in it and well it out again. After I was getting it dyno tuned for the new cam. Gotta do it twice. This is to make sure. My cam looked almost the same as that. I had 4 lobes messed up.
09-19-2005, 10:10 AM
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I had some spalling issues with my original cam, and it only had ~25000 miles on it. Those are my pics guitsboy posted above. There was a thread I started on it not long ago.
I should mention my cam was a stock 2000 cam, not a hotcam. And, my lifters looked very good. Could not tell any differences between the lifters running on the spalled portion versus the others.
I should mention my cam was a stock 2000 cam, not a hotcam. And, my lifters looked very good. Could not tell any differences between the lifters running on the spalled portion versus the others.
