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M5R1 popping ut of 5th gear


Paulsliffe

New Member
Joined
Jun 3, 2015
Messages
1
Reaction score
0
Vehicle Year
1989
Make / Model
Ford
Transmission
Manual
Rebuilt the SOB and everything was working fine, then one day she started popping out of 5th and wont stay in! I can hold it in while I am driving, but it wont stay.

I inspected all of the gears before reassembling, but maybe I didn't notice some wear on the 5th gear counter? I did in fact amke sure that the little steel ball was in place, new synchros, new slider.

What could it be?!

Could I possibly fix the problem by adjusting the little nut on the side?
 


Zachalanche

Well-Known Member
Joined
Aug 25, 2008
Messages
249
Reaction score
5
Vehicle Year
1989
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9
Transmission
Manual
Total Lift
4
Tire Size
33
I can't remember if the 5th gear fork is aluminum or steel. I have had to replace my 3/4 fork (aluminum). it wore down and would not fully engage 3rd gear anymore. same symptom, eventually I had to hold it in gear. now I can feel my 1/2 fork doing the same thing. 10 miles later.

one leading indicator of this issue is your trans fluid will turn silver from all the aluminum.

I am not sure why this keeps happening, but I have been completely disappointed with my trans. the original Mitsubishi trans never had any issues (for 200k+ miles), and it shifted better too. I know its not supposed to be as strong, but at least I wasn't pulling it out every 10k miles to replace a shift fork.

anyway there's my rant. hopefully yours is an easier fix. but check your fluid. that may tell you something.

cheers.
 

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