s/c drops
Turbo Mini Forums

i've had a set of s/c drops sitting in the garage for a couple of years, so i decided today to investigate wether they are suitable for a turbo engine..took apart an old spare engine to try them on.

the primary gear fits fine.

the first motion gear fits fine..

but the idler gear is a roller bearing type..so how does this fit?

i'm guessing that the original idler gear bearings need removing so that the s/c one fits, but it looks like its going to be loose?

is it the wrong type that i have? if so can i just buy a normal type s/c idler gear?

hope this makes sense??

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

yes, your right, you need to pull the old bearings out

Team Racing

It could be that you have a set of roller bearing drops suitable for A series rather than A plus? (that I assumed you tried them in an A Plus?) As one of the changes from A to A Plus was the size of the idler gear bearing.
As Jim says you remove the standard bearings as the idler now has its own bearing.

i'm going to pull the bearings out of the casings in the week and fingers crossed the idler will fit.. yeah tom i'm trying them in an A+, is it just the idler that varies from A to A+?
if so are the available seperatly?

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

a is 1/2 " dia a+ is 3/4" dia,but a adapter can be bought

Metro turbo weekend driver,Mini turbo in the making again!

yep from mini sport i picked some up myself, just need to get tha bearin out!!

as i was expecting, the idler don't fit.. i tapped the bearing out from the gearbox casing and the idler shaft is way too small..

star mag-you saying that the adapters can be brought from mini sport? how much?

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

they are only a few quid, not expensive.

I think they were about a tenner each, bought them with a load of rebuild bits so cant quite remember.

cheers for your help,..

on order from mini sport..

““A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.”” - Jeremy Clarkson

forgive me for my classic dunce style behaviour, but ive just won this off the 'bay, and never having had one before i dont know it its A or A+

Could someone identify it?





cheers

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

Timkin roller bearing s/c gear about £180 new

Edited by Dangerous on 11th Apr, 2006.

Metro turbo weekend driver,Mini turbo in the making again!

the idler bearings are a pain to fit by the way. it took me ages to get mine in because they are an interferance fit.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

£180 new? not bad for £40 off ebay then eh? :)

stu, would you have a pic of how youve fitted yours?

are mine a or a+? forgot to ask the seller before i bid!!

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

i had to heat the gearbox casing up and left the bearing in the freezer for an hour before i fitted it. just make sure you get it right first time!

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

im an expert at fitting big things in tight holes!

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

groan

sorry LOL

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

AlexF

I used a slide hammer and an appropriately sized washer to get mine out. Worked ok, but was a bit crude.

Dave, can this specialist puller/installer still be bought? I saw one in an article Calver did in mini magazine and thought it would be a nice addition to my toolbox...

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

i got mine a few years back too - the place I got it from appears to no longer exist (OEM tools supplier) - will have a look next time i'm around there, they do pop up on ebay from time to time too...

TTFN,
Dave

i just took mine to a local engineering company and asked them if they could get it out for me ( and the bearing!)

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

Is this it

http://www.machinemart.co.uk/product.asp?p=040210252

Metro turbo weekend driver,Mini turbo in the making again!

never had much use with that (i have one - use the slide hammer to get the 1st motion bearing out with an 'adapter')

TTFN,
Dave