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FORD 800 SLIPS OUT OF 3RD

A

Anonymous-0

Well-known Member
Recently bought a 800 ford tractor, and it slips out of 3rd gear.It is a 6 speed transmission. Just a little pressure on the gear shifter and it will stay in gear. I have a ITT service manual, and it looks like the shifting fork has an adjustment to it.Do you think by moving the fork in the right direction that this might solve the problem? Would appreciate any advice you might have. Thanks
 
That and those detent balls, my 850 slips out of 1st, 2nd, 3rd. If beyond that, might be more of a serious job, like rebuilding the trans., I've not tried any of these remedies yet, seems to pop out of 1st when under a load, real easily, pto engaged, seems like 2nd stays in the best of the 3, really sucks on the hills, you have to be careful, and quick, certain RPMS and speed with the pto engaged, she'll easily pop right back in with no resistance or jerking, slides in no problem, I'd really like to fix mine, it's a tough trans to last 50 something years.

YOu ought to get a reprint of the Ford Shop Manual, faxon auto literature offers the set, which also includes the operators instructions and parts book for these, might be helpful to supplement that non OEM I&T book.
 
First they did not make a 6 speed transmission, they were either a 4 speed, a 5 speed or a 5 speed with Live PTO and a 6 speed would have 6 speeds foward and not either the 4 speed or 5 speed that you now have, the reverse is NOT counted in determining how many speeds a transmission has. In trying to buy parts asking for a 6 speed the dealer would never find them. The 840 is the 4 speed, the 850 is the 5 speed with standard PTO while the 860 has the Live PTO. Each model would be different in requiring the way you work on it. The 841, 851 and 861 the transmissions would be bacicaly the same, the engine just had mower power, the 871 & 881 were the S. O. S. tractors
 
The 5 speeds were notorious for doing that. It's probably (hopefully) the detent balls on the rails. Pop the cover off for a looksee. The alternative is a worn gear that's taking a taper...

Rod
 
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