Lifter Clatter....
Matthew Kramer
stpndsmn at yahoo.com
Sat Jul 8 23:55:12 EDT 2006
Hi, I am kind of a lurker on Audifans at this point. I spend most of my time over at Motorgeek.com. Anyway, I've been having a problem with lifters on my 4ktq. I used a KH block and an NF head for my rebuild and so far the lifters in #5 won't seem to pump up.
It's quiet until about 2500 then they start this extremely loud lifter clatter like something is coming apart. I took out the valve springs a week ago and found basically nothing. I was hoping for a broken spring.
The only thing I have come up with so far is some sort of oiling incompatability between old blocks and new heads. I am guessing you used some form of NF/NG head. If so I hope you had the coolant passage welded.
Anyway, I was just interested to hear what you find out and if your problem goes away. I've heard that non-detergent 30w dino oil is the best for break in because you need some friction for proper break-in.....
Good luck
Matt
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