Just got Phil Bracpans old sprint Gtir in for a fair bit of work to be done
One of the jobs was to sort the gearbox out which ive now done and is all working fine now!
But hows this for a fantastic bit of gearbox building
Other than having the gearset incorrectly shimmed in the first instance causing gearset to overheat, the other cause of failiure was this........
........ppg uprated selector fork
This is not the first issue we have had with these things, they are extremely poor quality and this one has actually twisted out of alignment by around 1.5mm and in doing so has put an immense amount of loading on one side of the selector ring which had then cracked as youll see below
It has also damaged the synchro and baulk rings but luckily enough for the new owner he has managed to get away without having to buy a whole new gearset which obviously arent cheap!
So be warned guys.........These selectors that you pay a lot of money for are not really up to the job and thats not just my opinion but from the guys who normally do our geabox builds (a company thats been doing gearboxes since i was knee high to a grass hopper lol)
They refuse point blank to fit these selector forks because they are too short and do not cover over half the diameter of the selector ring so putting excess loading on one side, which will work fine for a while but over time will definately cause premature failure to moving parts or possibly entire gearset!
Below you will see the difference between a standard size 3rd 4th selector and the par one both fitted to a selector rod, the ppg one is even shorter than the par one below which is 28mm shorter on one side
One of the jobs was to sort the gearbox out which ive now done and is all working fine now!
But hows this for a fantastic bit of gearbox building
Other than having the gearset incorrectly shimmed in the first instance causing gearset to overheat, the other cause of failiure was this........
........ppg uprated selector fork
This is not the first issue we have had with these things, they are extremely poor quality and this one has actually twisted out of alignment by around 1.5mm and in doing so has put an immense amount of loading on one side of the selector ring which had then cracked as youll see below
It has also damaged the synchro and baulk rings but luckily enough for the new owner he has managed to get away without having to buy a whole new gearset which obviously arent cheap!
So be warned guys.........These selectors that you pay a lot of money for are not really up to the job and thats not just my opinion but from the guys who normally do our geabox builds (a company thats been doing gearboxes since i was knee high to a grass hopper lol)
They refuse point blank to fit these selector forks because they are too short and do not cover over half the diameter of the selector ring so putting excess loading on one side, which will work fine for a while but over time will definately cause premature failure to moving parts or possibly entire gearset!
Below you will see the difference between a standard size 3rd 4th selector and the par one both fitted to a selector rod, the ppg one is even shorter than the par one below which is 28mm shorter on one side