Gtx Dropping Out Of Gear

[mhyphenl 10 1 Cars]

While my Gti still isn't ready I'm driving a GTX, great little car but suddenly started to drop out of 3rd or 5th gear if you take your foot off the power or coast, fine while driving but a real PITA!! Any gearbox experts have some ideas of what it might be. Clutch has felt on the verge for a while, biting point is low but you have to lift almost all the way up to get full drive.

 

[welshpug 1,662]

Guessing its a 1.4 SPI or carb engine with an MA box?

[kyepan 291]

check the gearbox bolts are tight.

[mhyphenl 10 1 Cars]

Guessing its a 1.4 SPI or carb engine with an MA box?

1.4 SPI and think its MA yes, strange feeling when driving, accelerate and its fine, take your foot off the gas and plop falls into neutral. Only on 3 and 5 though, 1, 2 and 4 seem fine. Just started yesterday and has done it since. Embarrasing as the missus was in the car and she'll use any excuse for me to get rid!

[sickomotorsport 4 2 Cars]

I would check the engine/gearbox mounts for excessive movement first.

[James504 12]

As suggested start simple, check the top, bottom and gearbox mounts. Check the rod linkages. Check the box is tight against the block. If you fail to find a cause. You would be looking at stripping the box. You would be checking the detent mechanism and or syncros. I have seen this before on an Ma box, jumping out of gear on decel. However it was after it had been rebuilt (input shaft bearing failure) There is a spring which keeps pressure on the selector anvil which opperaters the syncro forks. It has been placed on the wrong side and was doing sweet F-all. Spring positioned correctly and box was back to normal. Now this obviously is not your case, but you would be wanting to check that this spring isnt broken and the selctor/detent mechanism is in good working order.

[mhyphenl 10 1 Cars]

I know I've dragged on this a little, had a major issue with the Gti oil pressure! I revisited this last night, checked all the linkages, the gearbox bolts and engine mounts and all fine. I hadn't really noticed before but its 1st as well, which means that its all the upward gears on the stick, ie its all when the selector is moved in the same direction. I think James has it right, that whatever retains the gears in that direction has failed. Is it some kind of sprung ball bearing that sits in a notch on the shaft? I saw that the synchros have three sprung ball bearings on them but wasn't sure what I was looking at really, (that was in the Haynes workshop manual!)

 

As for getting another recon box, are all MA 5 speed boxes the same?

[mhyphenl 10 1 Cars]

Any help on this? Would be good to get an idea of what I can get an MA box off, 106, 206 ????

[jonXS 30 1 Cars]

the 106 ones fit

XSI i beleive is a close if not better ratio

[Gentrix 2 1 Cars]

My old XS was doing the same thing as well as the CJ of my girlfriend. In both cases it was the bigger gear-rod, which is mounted on the subframe. The rubberbushing was seized to the pivot and thus setting the whole gearlinkage under tension - so if you hit a bump in the road, the tension works against you and drags the gears out. Try a search on here - I am pretty sure I once posted a picture of the offender.

 

Andi

[mhyphenl 10 1 Cars]

My old XS was doing the same thing as well as the CJ of my girlfriend. In both cases it was the bigger gear-rod, which is mounted on the subframe. The rubberbushing was seized to the pivot and thus setting the whole gearlinkage under tension - so if you hit a bump in the road, the tension works against you and drags the gears out. Try a search on here - I am pretty sure I once posted a picture of the offender.

 

Andi

 

Now that's interesting, I tried taking that linkage apart to adjust the length just to see if it wasnt pushing far enough and wasn't able to because that rubber bush was stuck on! That'll be it I bet! How to get it off though! I gave it a couple of blows with a hammer and screwdriver but the rubber just takes the impact! I guess it's best to take it all off and work on it on the bench. Any tips for removal?

[Gentrix 2 1 Cars]

best tip is brute force :-)