I've bought a reconditioned H55f gearbox from a reputable vendor in South Africa and had it installed in the car yesterday here in Malawi by a skilled European mechanic based here. Normally I would return to the vendor, but going back to the vendor is a bit tricky (distance, visas and we're in a schedule driving back to Europe), so would love to pick all your brains. The following is happening:
Low speed driving (up to 30-40km/h): 1-5 shift perfectly up and down.
Higher speeds driving (40km/h +): 1-4 shift perfectly up and down. 5 is hard to get into. Once it's been in 5th, it's not possible to shift back down without stopping the car and playing around with the clutch & shift.
The blue plastic ring and black ring under it are in place in the shifter tunnel. The white nylon cup is on the shifter end. The two rivets on which the shifter hinges are in good shape.
During removal of the old gearbox, the flywheel bearing was pulled out by accident (very tight fit around the pilot shaft of the old gearbox). The old bearing was placed back into the flywheel and the new gearbox installed (te bearing fits correctly around the new gearbox pilot shaft).
We have pulled the box out again. The bearing feels ok, but as a precaution we're going to replace the bearing and try to install the selector housing of the old gearbox which was shifting fine but had internal bearing troubles.
Anybody have an idea what could cause this erratic behavior? All tips and ideas are welcome.
It's a 1996 hzj75 1hz & H55f. Clutch plates in good order, replaced 50k Kms back. Fresh oil in the gearbox Castrol Axle EPX90 GL-5
Low speed driving (up to 30-40km/h): 1-5 shift perfectly up and down.
Higher speeds driving (40km/h +): 1-4 shift perfectly up and down. 5 is hard to get into. Once it's been in 5th, it's not possible to shift back down without stopping the car and playing around with the clutch & shift.
The blue plastic ring and black ring under it are in place in the shifter tunnel. The white nylon cup is on the shifter end. The two rivets on which the shifter hinges are in good shape.
During removal of the old gearbox, the flywheel bearing was pulled out by accident (very tight fit around the pilot shaft of the old gearbox). The old bearing was placed back into the flywheel and the new gearbox installed (te bearing fits correctly around the new gearbox pilot shaft).
We have pulled the box out again. The bearing feels ok, but as a precaution we're going to replace the bearing and try to install the selector housing of the old gearbox which was shifting fine but had internal bearing troubles.
Anybody have an idea what could cause this erratic behavior? All tips and ideas are welcome.
It's a 1996 hzj75 1hz & H55f. Clutch plates in good order, replaced 50k Kms back. Fresh oil in the gearbox Castrol Axle EPX90 GL-5