Working out another bug on my 43 H.
Some times when i cold start the tractor it seems to idle smooth. but then it gets to popping and carrying on. Almost like its firing before or after where it should on some cylinders. No RPM is any better unless you apply some sort of load. When you put the tractor in a high gear it runs smooths and picks off all four cylinder nicely until the load goes away. You can then slow the engine RPM down and then increase it again and it will run smooth until the engine catches up to the speed setting.
Things I've tried to correct the issue.
I had been thinking it may be distributor issues as I thought it had rotational slop on the button/rotor. I checked my other H I have for the same slop in the distributor and that one had the same amount of free play. That tractor runs perfect.
I had to set the timing by ear. There are NO timing marks that I can see on the crank pulley. I spent a bunch of time staring at it and rotating and so has another person. The timing I set it to appears to be ok, and no adjustment makes it run better. Carb settings appear to be ok as well.
I got a points/condenser kit from TSC and put that in the distributor. A new Rotor came with the kit. I didn't get a new cap for it yet as they didn't have one. I hadn't thought about trying the one off my good running H till just now so I will try that next.
I need to get a new set of plugs for it. I have no idea on the age of them and one of them wasn't working properly so I switched it out for the only new spare I had lying around which got that cylinder firing again. I probably should get a set of wires too as they are original IH. (They are marked on the boots at the distributor with IH) I did however change them out for the wires off my other H and it made no difference so I don't think that is part of the problem.
Thanks for any help.
Some times when i cold start the tractor it seems to idle smooth. but then it gets to popping and carrying on. Almost like its firing before or after where it should on some cylinders. No RPM is any better unless you apply some sort of load. When you put the tractor in a high gear it runs smooths and picks off all four cylinder nicely until the load goes away. You can then slow the engine RPM down and then increase it again and it will run smooth until the engine catches up to the speed setting.
Things I've tried to correct the issue.
I had been thinking it may be distributor issues as I thought it had rotational slop on the button/rotor. I checked my other H I have for the same slop in the distributor and that one had the same amount of free play. That tractor runs perfect.
I had to set the timing by ear. There are NO timing marks that I can see on the crank pulley. I spent a bunch of time staring at it and rotating and so has another person. The timing I set it to appears to be ok, and no adjustment makes it run better. Carb settings appear to be ok as well.
I got a points/condenser kit from TSC and put that in the distributor. A new Rotor came with the kit. I didn't get a new cap for it yet as they didn't have one. I hadn't thought about trying the one off my good running H till just now so I will try that next.
I need to get a new set of plugs for it. I have no idea on the age of them and one of them wasn't working properly so I switched it out for the only new spare I had lying around which got that cylinder firing again. I probably should get a set of wires too as they are original IH. (They are marked on the boots at the distributor with IH) I did however change them out for the wires off my other H and it made no difference so I don't think that is part of the problem.
Thanks for any help.