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International 434,....Gear noise

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02-12-2005 15:13:12

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International 434 1969,diesle.When putting it in all gears it makes a grinding noise.This happens when first starting it up.After we"force"it into a gear....then we can usually use it ,without any hard shiftin after that.When we shut it down,and let it set a while,then stsrt it ,it will not o into any gear,again,,without a grinding noise.Also cantshift from hi to low,or vise versa,even whileideling.The guy we got this tractor from told us it was the "throwout bearing....but why does it shift ,after the tractor is running a bit?.....Is this somethingserious.The man told us that it was doing this for 5 years...hard to believe....GW

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JB2

02-13-2005 09:00:38

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Re: International 434,....Gear noise in reply to GW, 02-12-2005 15:13:12

Hi GW, inspection plate is on bottom of torque tube on transmission side of flywheel. I agree with partsman if it stops grinding gears after it warms up then it is most likely stiff grease in the pilot bearing. We had a B414,434 and 384
as loader tractors that were running every day even in -30F weather and they would never grind the gears. When it was really cold it was very difficult to shift between gears until the transmission oil warmed up.

Good luck
JB2

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JB2

02-12-2005 15:40:46

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Re: International 434,....Gear noise in reply to GW, 02-12-2005 15:13:12

Hi GW, it is either the pilot bearing or the transmission clutch adjustment. The 434 has a 2 stage clutch, 1/2 way stops transmission and to the running board stops transmission and PTO.

Does it have the same grinding problem if you push the clutch all the way to the running board? If it does this would indicate the pilot bearing is not running freely. Either grease in bearing has solidified or run dry.

The danger is that if the pilot bearing seizes completely the tractor will not stop when the clutch is depressed. This could be very dangerous if you are backing into an implement or driving into a shed or someone is standing in the path of the tractor.

Be prepared to grab the fuel shutoff lever.

There is an inspection plate that can be removed but can't see pilot bearing as it is in center of flywheel but can see the throwout bearing and finger adjustment on pressure plate. On the B414 there was a grease zerk on the throwout bearing.

Good luck
JB2

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02-12-2005 18:37:19

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Re: International 434,....Gear noise in reply to JB2, 02-12-2005 15:40:46

hi.Yes,the gears grind,when the clutch is all the way down.This only happens,when first starting up,and after a "few shifts".After it is driven the gears move freely.Where is this "inspection plate located"?..and could i spray a bit of WD40 in there,without getting it on the clutch itself?....and would this fix the problem,till warmer weather comes along to get it repaired?..Thanks GW.

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partsman

02-13-2005 07:49:43

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Re: International 434,....Gear noise in reply to GW, 02-12-2005 18:37:19

Sounds like it is likely cold grease in the pilot bearing. You won't be ble to get WD-40 to the pilot bearing because the clutch disk is in the way. If there is a grease zerk, try using snowmobile grease in it. It's much thinner.

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