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Allis B

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Jim Goins

11-13-2002 13:07:12




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Folks,

For sometime I've been trying to get an Allis B up and running. Lets assume that I have everything right and 100 percent checked out. Magneto came off a running tractor,carb was an exchange\rebuild and works fine,new sleeves,pistons,rings,rods mains. The heads been completely redone,new wiring harness,and generator and on and on. I have fire, I have fuel and according to the manual I have it timed. The only thing I can think of as to why it wont start is timing. I've found top dead center by getting the #1 cyl. to the top and I've lined up the timing marks on the govenor gear and cam gear. She just won't even try to start.

What am I doing wrong or what in the world have I missed!!

Thanks in advance,
Jim

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Justin

11-13-2002 20:07:01




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 Re: Allis B in reply to Jim Goins, 11-13-2002 13:07:12  
Hey Jim, we had a similiar problem with our B. Everything was good to go but it just wutton go. We slapped it into 3rd gear and pull started it. It turned over and was roaring! We dissambled it to repaint and we need to pull start it again since it has been sitting for a month during painting and body work etc. I would recommend a long chain and a clear field. It really picks up speed quick in 3rd gear and is a fast little tractor!

Justin

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John in NC

11-13-2002 14:33:47




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 Re: Allis B in reply to Jim Goins, 11-13-2002 13:07:12  
Jim, I know what your feeling because I had the same problem several months ago getting mine to fire for the first time. I kept thinking it was the timing but I had followed the book. In my case it was firing and I had gas to the carb but would not hit a lick. I tried pulling the plugs and squirting a little gas in each cylinder replacing the plugs and then it would hit briefly until the fuel was gone. I then knew that somehow fuel was not getting to the cylinders. I pulled the manifold and found that it was clogged with mud from dirt dobber nests. I guess the wasps had gotten in through the exhaust pipe. I throughly cleaned the manifold, reinstalled, and it fired up first crank. Also you say that at TDC you lined up the timing marks on the govenor gear and cam gear. Also make sure you have the magneto timed with the F mark (Fire) on the flywheel through the inspection hole on the torque tube. The F (Fire) should be centered in the hole right as the magneto fires with the rotor button on the #1 plug wire. Just having the #1 cylinder at the top you might be on the wrong stroke so check the flywheel mark. Mine is a 1939 so I think it would be the same. let us know...Good Luck...John

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Rod (NH)

11-13-2002 14:25:18




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 Re: Allis B in reply to Jim Goins, 11-13-2002 13:07:12  
Jim,

Make sure you have the #1 piston on top dead center on the compression stroke and not the exhaust stroke. Just a thought.

Rod



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DENNIS (WA)DENNO CHOP@AOL

11-16-2002 22:10:23




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 Re: Re: Allis B in reply to Rod (NH), 11-13-2002 14:25:18  
JIM HAVE YOU RAN A COMPRESSION CHECK ON IT SINCE YOU ASSEMBLED THE ENGINE.? . IF YOU HAVE , IF IT IS LOW MAYBE THE VALVES ARE ADJ. A LITTLE TO TIGHT . TO MAKE SURE YOUR ON THE COMPRESSION STOKE ON NO, 1 CYL. STICK THE TIP OF YOUR FINGER IN THE PLUG HOLE AND ROLL THE ENGINE OVER, WHEN YOU FEEL AIR BLOW OUT AROUND YOUR FINGER THATS THE COMP. STROKE . THEN CHECK YOUR ROTOR TO SEE IF ITS ON NO. ONE WIRE . SOME TIMES IT HELPS TO SQUIRT A LITTLE FUEL RIGHT IN TO THE SPARK PLUG HOLE . BEFORE CRANKING HOPE THIS HELPS.. DENNIS C.

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