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BF Avery to fire and run?..$80 in the mail!...seri
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Posted by morganstevenr on February 06, 2007 at 21:20:26 from (12.226.101.63):
All,
I have been working on a 1948 BF Avery Model A tractor for the past year. I have had the tractor 95% put together for the past 4 months trying to get it to successfully fire and run. It fires once in a while but I cannot for the life of me get it to successfully run. This is what I have done so far:
-Replaced all oil and piston rings
-Professionally rebuilt starter and carburetor
-Replaced all wiring, starter solenoid, gauges, coil, distributor points and wires
-Re-seated valves and made adjustments for .006 and .008 intake/exhaust
-Double-checked camshaft and crankshaft alignment with both dots in line
-New gasoline every week
-Replaced internal parts within the distributor if I burned them out This is what I do every time I try and start it:
-Turn the key and check for spark at each plug
-Check for 90+ psi at each piston. The 6 volt batter only turns it fast enough to get it to around 45-50 psi so I use a 12 volt booster on the frame and starter to basically jump start it with a charger on the 6 volt battery. I also put a little bit of oil in the cylinders to help the psi.
-Time the distributor by rotating the #1 cylinder (first cylinder next to the radiator) to TDC of the compression stroke as it shows in the hole located on the belly housing. Then I place the distributor in and rotate the rotor so it is directly underneath the point of the #1 cylinder point. I then usually move it slightly counter-clockwise so that the point is just about to break contact, which is usually about 1/8 inch at the outer edge. If I move it clockwise to wear it just breaks contact it would move about ¾ inch at the outer edge which seems way too far.
-Make sure the wires are 1-2-4-3 in clockwise direction.
-Give her some turns and hope that it fires at least on the first cylinder.
-Check for good gas flow at the spark plugs or simply squirt some ether at the intake throat of the manifold after taking the carburetor off.
-After a few turns I will rotate the distributor 180 degrees just to make sure that I am not off. I get it to fire by placing a tiny bit of ether or gas in each cylinder on most days. I do find it odd that it will suck in through the exhaust a little bit between pushing out the exhaust manifold. I assume that is because it is not firing which allows the power stroke to suck in some air through an exhaust valve that is open. If you have any information that you believe would help me please forward or reply. I would greatly appreciate it and would consider it a bargain if I can get the Avery fired up! Thanks for reading this in advance since I included so much info. Respectfully, Steve Morgan 1-515-238-9407
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