Update on 450D

Posted by Andy Martin on March 07, 2005 at 05:45:34 from (64.219.39.195):

When I got my rocker arm cover off, all the rockers were loose.

Each one had a depression where the valve stem had worn into the rocker about 0.010 or more. So I took the rocker arm assembly off and used a power sander to bring the end of each rocker back to a smooth arc, then polished with buffing compound.

Pulled the two rod bearings I could get to. They both were IH std bearings. They plastigaged at about 0.0035 and were pretty clean.

Cleaned up the carburetor and gas tank, found points, and a condenser off a 300 gasser, used but good shape, borrowed the cap from my SMTAD and put everything back together and set the valves at 0.020 cold.

Borrowed a battery from my loader tractor and tried to crank it with a can of ehter in my free hand. The old thing fired right off on gasoline on the second crank (long before I was ready to use the ether).

It's missing on gasoline, probably a bad spark plug, but took right off on diesel. Still smoking and missing on diesel but no barking so I'm figuring it has a bad injector so I'm real ready to get a rim and tire on it and get it in front of a 9 ft one way.

Warmed up the valves felt about right with a 0.017 feeler.

Thanks for the advice. I'm feeling real lucky right now. All in all a good Saturday's effort.

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