Re: Re: Re: Re: Re: farmall H not firing

Posted by Andy Martin on September 04, 2000 at 22:09:52 from (38.31.74.156):

In Reply to: Re: Re: Re: Re: farmall H not firing posted by The Red on September 03, 2000 at 06:24:22:

That's pretty bad compression test if the cylinders were oiled first. Try the following IN ORDER. When you find a problem, try to start the engine. Don't be afraid to jump it with 12v car, just hook + to +. Remember it will run with: atomized fuel+timed spark+compression

0. Make sure you have FRESH gas.

1. Check valve clearance! 2, 3 and 4 may be tight.

2. Re-check the mag timing AGAIN. It sounds like it may be very late or 180 deg out. If you don't understand 180 deg out get a friend to help.

3. Put Marvel Mystery Oil in each cylinder. It has freed rings for me. The rings may be stuck in the bottom of their grooves. Let it sit a couple of days. Spin the engine with the plugs removed to make sure you don't leave too much oil in the cylinders.

Do another compression test. Use a couple of squirts of 30w motor oil in each cylinder before the compression test. The rings may free up if you can get it started.

4. I have never damaged a Farmall gas engine with starting fluid, it will narrow your problem to spark timing or compression if it doesn't fire. Take the hose off from the air cleaner and spray SHORT bursts into the carb while cranking the engine. Requires two people!

5. Check 3 and 4 pistons with a wire to make sure they are going up and down. Pull the pan to check for rods in place.

6. Drag it with a truck 5 mph on smooth dirt or grass and slowly engage the clutch with the tractor in 4th gear (put it in gear BEFORE you start moving). There is some danger in doing this. Only as a last resort. Not on pavement or public roads.

That will give you good engine speed (one wheel will slip) and your best compression. Requires two guys. Your wife does not want to do this! (Mine does it but she does not want to) If you make her do it while you are frustrated with the tractor it may result in your selling the tractor to buy new duds to date in.

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