mazda md50-r1 pops out of fifth gear

rich besal · Mar 16, 2009

Hello all- this just began. happens under acceleration.trans shifts smoothly.new clutch about 10000 miles ago.unsure of mileage on trans or truck.bought in jan 05 with 3300 miles on odo.1994 supercab 2wd 4.0 engine.ideas on how to repair?
thanks rich besal

Langdog · Mar 16, 2009

Has the transmission been rebuilt recently? I had this problem when the mechanic placed the fifth/reverse shift collar backwards when we rebuilt a few weeks ago.

baddis · Mar 16, 2009

same thing in mine but it wouldn't even stay in 5th

LittleHorse · Mar 16, 2009

not on an M5OD, but I had a Datsun that popped out of fifth due to a loose countershaft nut. Took off the tail housing to find the nut less than finger tight, only kept from being spun off by being staked onto the shaft. Since the nut couldn't move I can only assume it was due to wear in the thrust washers reducing the preload, which allowed enough slack for the synchro collar to not quite be able to reach all the way into 5th.

Just an idea.

rich besal · Mar 17, 2009

thanks for the replies guys.no rebuild while i have had this truck.trans has worked fine since i bought it.the shifter lever does rock aft when accelerating and forward when letting off throttle(with foot off clutch pedal in both cases).

LittleHorse · Mar 17, 2009

rich besal said:
thanks for the replies guys.no rebuild while i have had this truck.trans has worked fine since i bought it.the shifter lever does rock aft when accelerating and forward when letting off throttle(with foot off clutch pedal in both cases).

some movement is normal with the transmission and engine being rubber mounted, though that movement is usually side to side, not back and forth. Not sure what would cause that.

mazda md50-r1 pops out of fifth gear

rich besal

10+ Year Member

Langdog

15+ Year Member

baddis

20+ Year Member

LittleHorse

15+ Year Member

rich besal

10+ Year Member

LittleHorse

15+ Year Member

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