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engine has 5000 completely rebuilt
I have seen newly built engines that never had the oil galleys cleaned out. I guarantee you thats the issue. onle takes a 1/2 inch drill bit screwed in by hand to clean it out. needs to be able to go all the way into the intake side headbolt passage.
Hey mc posting for a customer, he's on his 3rd dist. the worm gear keeps sheering cam looks good timing has been set at 5°btdc engine has 5000 completely rebuilt any ideas what can cause this? I told him he has to drop his pan and get the chunks out. Says the top end is in synch with the bottom end the chain has 5k as well. He bought a transmission off me and bought two distributors in the last week.
If he has an after-market cam, especially an overseas one, the cam gear may be ground off-pitch or hardened incorrectly. .
I'm a long way from an engine builder so I'll defer my comments to the experts out there...There are 3 oil ports that feed the 3 cam journals. It would seem odd that one or all of those ports would get plugged up.Since all 3 are feed from a common oil galley, wouldn't there be other issues with lubrication? If the cam bearings were worn so badly that the camshaft could actually move enough to cause the 2 gears to not mesh and crash, the engine would not be running right, lots of noise, and should be very noticeable. With the crank turning the cam gear, how could the camshaft seize up and stick?By the way, the oil ports in the cam journals on my 22RE factory head are about .220" in diameter not 1/2".Gnarls.
Do aftermarket camshafts come with distributor cam gears? If I were replacing my distributor cam gear and bolt for some reason, I'd get one from a reputable source like 22RE Performance, LCE, or engbldr. Since I started my rebuild, I've heard and read that there are foreign made very poor quality aftermarket replacement parts out there. Gnarls.
He hasn't had any money to do anything......
I'm very familiar with that issue since starting my rebuild! Gnarls
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