shifting from reverse to first

bmorelectric · Jun 6, 2014

I am having trouble when I shift from reverse into first and first into reverse. I can start the tractor in gear with the clutch in without the tractor moving. I also need a fan belt, any stores recommended to get parts? I just bought the tractor and I am not familiar with it, any help would be appreciated. 1970 Harvester International 454.

Texasmark · Jun 6, 2014

I had a 45 hp 4 cyl. gas '74 464 once. Suggest you adjust the clutch linkage. Going to bet your clutch is dragging on the flywheel and not disconnecting the input shaft from the engine like it should causing it to spin the gears in the tranny causing your problem.

Quick check is that it is real sensitive to engine rpms. If it gets harder to engage as rpms increase then I'd say that's it.

Tighten up the linkage so that you get more movement on the clutch fork for a given amount of pedal movement. Just enough to get it to quit.

HTH,
Mark

bmorelectric · Jun 6, 2014

Thanks for the input. The only thing is that I can start the tractor in gear with the clutch in and not move or jump. Would this still the clutch adjustment? I think the RPM does make a difference. I tried lowering the RPM and it was alittle better.

Texasmark · Jun 8, 2014

Put the tractor in gear, idling ok, clutch out on a somewhat level surface. Slowly depress the clutch till you feel your ground speed decrease, or the engine speed increase, or something indicating that you are disconnecting from the flywheel.

At that point, how much pedal do you have before it bottoms out? If you are at the bottom of the range or say within an inch, I'd look at adjusting it.

Mark

bmorelectric · Jun 8, 2014

The tractor is up north. When I go up next weekend, I will try that out. Thanks

bmorelectric · Jul 20, 2014

I can disengage the flywheel about 3/4 of the pedal but still having trouble shifting. The gears sound like they are still turning and not meshing. What oil should I be using for the transmission. I guess I should get a manual. Thanks Brian

john_bud · Jul 21, 2014

What form is the "trouble"?

Clashing gear sounds? First off, the machine should be stopped before shifting. I put in the clutch, stop totally, wait a heart beat, then shift. Non-syncro gears (assuming that's the case) are called crash boxes for a reason.

bmorelectric · Jul 21, 2014

Clutch pushed in, gas lever lowering rpm, tractor stopped, change from first to reverse. It sounds as if the gears are still turning and are not meshing properly, when the clutch is released slowly. Sometimes it is ok?? I am not shifting the gears in the right position?

RoyJackson · Jul 22, 2014

If it's a non-synchro transmission (probably is, considering it's an old IH 454) and you do stop completely...but still crash gears, I'd suggest your clutch needs adjustment.