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1963 Ford N750
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Posted by jim handke on March 26, 2006 at 15:48:36 from (22.214.171.124):
First of all, thanks to all who answered my post on my GMC. Now, to this ford. Reman engine, about 11,000 miles on it. Had to take the heads off to get exhaust manifolds planed(twisted off bolts). Put it back together and found it had a vacuum leak around intake. Remove everything again, install a better helicoil and re-assemble. At about 200 miles, hear un-natural noises from engine, along with a miss. Remove intake and heads again. Intake seat gone on #3 cyl, exhaust seat loose and moving with valve. Six bent intake push rods, three on each bank. Have hyd. lifters gone bad? Pumping way out and sticking there? All valves could be moved in guides with one finger, so couldn't be sticking. Replace lifters, or collapse the old ones before installing the heads and hope this doesn't happen again? Any ford people out there ever run into this problem?
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