OK BOYZ! 4-H tractor project ??'S

Timing of Motor(How is it done), I need a step by step follow through of how to time an H engine, just as you would tell someone who has never done it before, Like myself, The more posts the better! Thanks

get a manual and do it the way everyone else has to do it....

to bad u weren't fixing up an M...u'd be pro after all the times u broke urs.....ha ha

good luck....c ya soon

When you get the engine back from the machine shop. I'm assuming you are installing the crank yourself. Double check the timing marks on the timing gears. DOUBLE CHECK THE TIMING MARKS ON THE TIMING GEARS. You won't find out you've made a mistake until you have the engine assembled and back in the tractor.

If you don't have a parts manual get one. This will show you how the parts go together.

Gene

There's something wrong with a kid getting an assignment that requires some research, then jumping on the Internet and asking some support group to give him the quick answer. Most research assignments are not about the answer itself, but in learning HOW to research, and in what else you learn in the course of your research. Granted this isn't for school, but in this case there should be MORE incentive to learn everything you can because participation is voluntary, not have someone give you the process all nicely typed up on a silver platter...

The real trick to timing an engine is geting the punch marks on the cam and crank lined up right. The rest of it you can do from the outside.

Once you have this information take out the spark plugs and place your thumb in the #1 spark plug hole. Have someone turn the engine over with the hand crank until you feel pressure trying to push your thumb off the spark plug hole. When you feel the pressure, continue cranking until the marks you found earlier on the crankshaft line up with the pointer. #1 piston is now in firing position (or close enough to get running anyway). Install the distributor so that the rotor under the cap is pointing towards the #1 tower on the cap. Next to get it real close, take an ohm meter and connect it to the terminal on the side of the distributor and a ground. Loosen the clamp that holds the distributor from rotating and rotate the distributor until the ohm meter shows some resistance (or the points have just opened). Tighten the clamp and your engine is now “static” timed. Install the spark plugs. To finish you need the specs and a timing light to really polish up the timing, again you hook the timing light up to the #1 spark plug per the lights instructions, and start the engine. There should be a mark on the pulley that indicates the correct timing, just loosen the distributor and rotate it until the timing light indicates that the plug is firing on the correct mark. Tighten the distributor and you are done unless you want to check the spark advance, which I’m not going into on this post as it is long enough.

If you have questions, send and e-mail to me.