So this weekend was an episode in fuckery. John (86Vicky) came down to help me swap the Explorer cam in the Towncar to a Comp XE258 that Pantera77 had hooked me up with like 2 years prior. Everything came apart mostly OK until it was time to extract the cam itself. As the lifters were coming out, things stopped looking promising.
This is an example of one of the damaged lifters. I have 6 or 7 that are similarly dinked. Honestly didn't count, at this point it needs 16 as far as I'm concerned.
Here are some shots of the resultant damage to the camshaft:
Working theory is that when I had the cam gear fall off a couple years back, the cam slid backwards and slammed some of the lifters. The side of the lifter where the axle sits cracked, and the roller wasn't able to run smoothly anymore. Fast forward several years and several miles and this is what happened.
and an overly-sunny video, just because
Gonna order a new set of lifters and a new thrust plate and see what that gets me. Cam endplay per the book is 0.0005 to 0.0055, and I'm getting closer to .008. There is a visible wear mark on the thrust plate, and I can believe its .003. If that won't get me in range, then I suppose its new timing set time. The plate is cheaper though, only $7.
This is an example of one of the damaged lifters. I have 6 or 7 that are similarly dinked. Honestly didn't count, at this point it needs 16 as far as I'm concerned.
Here are some shots of the resultant damage to the camshaft:
Working theory is that when I had the cam gear fall off a couple years back, the cam slid backwards and slammed some of the lifters. The side of the lifter where the axle sits cracked, and the roller wasn't able to run smoothly anymore. Fast forward several years and several miles and this is what happened.
and an overly-sunny video, just because
Gonna order a new set of lifters and a new thrust plate and see what that gets me. Cam endplay per the book is 0.0005 to 0.0055, and I'm getting closer to .008. There is a visible wear mark on the thrust plate, and I can believe its .003. If that won't get me in range, then I suppose its new timing set time. The plate is cheaper though, only $7.
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