gearbox bearing
Turbo Mini Forums

hi ive been told to change the bearing on a standerd box to fit it on my turbo engine could anyone send me pics of this bearing please as im not sure which one it is and where i could get a big bearing to put onto the box so i can fit it on cheers lee

The turbo gearbox has a bigger bearing on the input shaft to the gearbox - compaired to a std gearbox.

You can either change the bearing... or just use a non-turbo transfer casing with the smaller bearing surface to match the smaller bearing on the shaft!

Alex

AlexF

You forgot to mention the 'turbo' bearing is four rimes the price of the standard one Alex.
This can help peeps make a descision!!! LOL!

The turbo gearbox has a bigger bearing on the input shaft to the gearbox - compaired to a std gear box.

so alex N/A A+ boxes are the same bearing sizes as the "A" box then?

Edited by BENROSS on 2nd Jun, 2005.

well why would they fit the turbo with a bigger bearing seems daft to me

No comment..............

maybe they found the standard bearing was not strong enough after doing bearing calcs / testing?

OEM's always have reasons for doing stuff!

so what would u guys suggest keep the small bearing fit a non turbo casing or could i maybe remove the bearing from my old box and fit it to my new one without breaking it

AlexF

well anyone know the price of a big turbo bearing or where i can get one

roughly £50. just from minispares or the like. or try get the number off it and go to a good bearing suppliers.

I've mentioned this before, but I bought one from a bearing place for about £8 before..........if you take the old one in they should be able to cross ref the numbers. When I got mine they had an "automotive applications" book that listed the bearing we found as "Input Nose Bearing MG Metro Turbo" so there was no doubting it was the right thing for the job.

I can also have a look to see if I have still got a s/hand bearing in stock at home, I got one off intact and so kept it, don't have the outer race though, you are supposed to use as a matched pair but probably get away with it?

Or in fact give Min-its near Birmingham a ring I am sure Dave there once told me he could source me one if required. Worth a quick phone call.

alex i dont mean to be sarky at all buddy.
its the silly way i typed it.

what i wanted to clarifie was
turbo box has a larger bearing than a N/A ..A+ BOX ?

if this is so does the the old A box use the same bearing as the N/A A+ box

or is there three sizes of bearings ??????

Edited by BENROSS on 2nd Jun, 2005.

turbo bearing is larger, all the NA ones (A or A+) are the same as far I am aware

tom can you get a halfe dozen through work for that large roller at the end of the plant

no ofence taken., hence the :tounge:

turbo boxes use a large bearing

std A+ use a smaller one


I have no idea about pre A+.. they are old and weak, or somthing like that LOL

Alex

AlexF

ha ha ha

they wouldn't use a piddly little bearing like that for a paperweight where I work, most of the bearings we have here require a forklift or a crane to move them about!

But if I catch the bearing rep sometime I will ask him.

worked in that size of plant for years

too big nowadays for me ...lol

All N/A engines, A or A+ three or four sync has the same bearing.

What is weaker in a Pre A+ box Alex??

smaller layshafts?

Alex

AlexF

i thought they made them bigger so they could make the bigger ones out of chocolate?

i.e. the A ones were far better material?

Exactly! Also, the A+ has got only two layshaft bearings, Whereas the A ones have got three..

One less bearing= cheaper.

Last time I bought the 'turbo' bearign from BSL - using my company's 60% discount at the time - it was £17. This was half the price of the same thing from minispares, so I wasn't arsed!