Posted by richard bartlett on April 02, 2010 at 10:50:39 from (81.152.252.24):
hi guys, i am rebuilding a major but need help with checking the fuel pump timing. the serial no. of the tractor, stamped over the starter motor, is 1331993. the pump is a simms SPE 4A 75S 498 and currently the fly wheel is showing 23*BTDC. According to my workshop manual a major with this serial no. should have a simms SPE 4A 70S 296 (or 380) and timing mark should show 26*BTDC. i have the head off and i bought this tractor recently as a non runner so i havnt heard her run yet. I"m sure that various parts are not original to this tractor, probably including the pump but can anybody confirm the current timing settings with these details??
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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