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Username	Post: Valve Adjustment
Oldengineer Contributor Posts 391	04-07-12 08:32 PM - Post#2212568 I decided to adjust the valves on my 48 today. Ran into some interesting problems with the engine. First of all, when I lined up the distributor rotor to the #1 position, I had no timing marks visible on the flywheel. I then pulled the engine over with the fan and finally found the timing ball. The timing mark is 90 degrees off the #1 position on the distributor. I'm assuming somebody's had the engine out, and, installed the flywheel incorrectly. I ended up setting the valves using the #1 and #6 position of the distributor rotor. I also discovered that I've got three rocker arms that don't quite line up with their valve stems, and, are made a little bit differently from the rest. Suspect they're out of a later model engine. I've also got an assortment of pushrods - looks like 3 different diameters. Oh well - When I put her back together, she runs great in spite of her little issues, and, the valve gear is getting oil OK. Guess I've have to go shopping for some replacement valve gear parts so I can replace this stuff next time I open the engine up. Regards: Oldengineer

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Post: Valve Adjustment

Oldengineer
Contributor
Posts 391

04-07-12 08:32 PM - Post#2212568

I decided to adjust the valves on my 48 today. Ran into some interesting problems with the engine. First of all, when I lined up the distributor rotor to the #1 position, I had no timing marks visible on the flywheel. I then pulled the engine over with the fan and finally found the timing ball. The timing mark is 90 degrees off the #1 position on the distributor. I'm assuming somebody's had the engine out, and, installed the flywheel incorrectly. I ended up setting the valves using the #1 and #6 position of the distributor rotor. I also discovered that I've got three rocker arms that don't quite line up with their valve stems, and, are made a little bit differently from the rest. Suspect they're out of a later model engine. I've also got an assortment of pushrods - looks like 3 different diameters. Oh well - When I put her back together, she runs great in spite of her little issues, and, the valve gear is getting oil OK. Guess I've have to go shopping for some replacement valve gear parts so I can replace this stuff next time I open the engine up.

Regards:
Oldengineer

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