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Gearbox fitment
Posted: Fri Apr 26, 2013 2:00 pm
by Shropy
Gotta change the box in my polo this weekend and I have a gear box off a mpi engine to go on will it fit straight onto the other version of the 1.4 which I think is the dohc? Might sound daft but I'm not to clued up :p
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 2:09 pm
by alexperkins
All the gearboxes are the same fitment, however some have different clutches, and each engine size has a different gearing ratio, thus if you use a 1.4 16V box on a 1.0, the acceleration is likely to not be as good as before
You should try use a gearbox from the same engine.
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 3:19 pm
by Shropy
Both the box I'm putting in and my engine is a 1.4 so you think it should fit? I would but I'd rather spend £100 for a box from a friend than £250 for a second hand ebay jobby :p especially on £2.65 an hour XD - thanks mate
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 3:21 pm
by alexperkins
Should be ok if thats the case
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 8:11 pm
by Piers0930
Alex, i've herd the TDI gearbox's are more stronger, and better for the GTI lump?
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 8:14 pm
by alexperkins
They all have the same fifth gear roller bearing and differential rivets. The only difference is the ratios
Rebuild with a metal fifth gear bearing and replace the diff rivets with titanium bolts and the box would last forever.
Re: Gearbox fitment
Posted: Fri Apr 26, 2013 8:25 pm
by Piers0930
alexperkins wrote:They all have the same fifth gear roller bearing and differential rivets. The only difference is the ratios
Rebuild with a metal fifth gear bearing and replace the diff rivets with titanium bolts and the box would last forever.
oh right thanks alex, the gear box looks newer than the engine, from the colour of it.
Now its out, i was going to fit a new clutch, belts so i don't regret it later.
I guess i can strip it and see what has been done, as it looks like a recon.