[THEWORKSMINI]

What sort of job is it to refit the stock pulley back onto a SC? I have fitted loads of reduction pulleys but never had to reverse the process before!

Any help would be much appreciated!

Regards
Lee

[MINI-Morgan]

Thanks Lee, I have wondered for a long time but never thought to post this question up.

What about a blow torch and lots of heat like the aftermarket crank pulley way? Well that is unless you have the BMW vibration fit tool or what ever they call it. I guess you would then need to correctly align it quick before it cools.

Surely some of the tuners have done this before during testing? and isnt the GTT pulley a friction fit too?

[MINIAC]

Quote: Originally Posted by THEWORKSMINI (original)

What sort of job is it to refit the stock pulley back onto a SC?

Why would you want to?

[ScottyBoy]

Quote: Originally Posted by MINIAC (original)

Why would you want to?

Possibly for when the car gets sold on, as i will be doing if the MINI has to go.

It'l be going back to stock form for a private sale.

[Capsaisin]

To fit the original pulley back, first you have to hope you didn't damage the mating surfaces of the pulley or the s/c shaft when it was originally removed. Then you have to heat the pulley and align it correctly on the s/c shaft. Taking great care not to cook the s/c end bearings. If it's not aligned you will get belt squeal and possibly shredding or jumping off the pulley.

The best of luck, it's not something I would do.

The GTT pulley is bolted to the centre, which is heat shrunk on. But GTT use their own methods for doing this, and no doubt the whole thing is jigged for alignment.
To put a GTT pulley back to standard, you buy a standard diameter pulley from GTT and bolt in onto the centre piece.

[Fisher]

The best solution is to buy a standard size aftermarket pulley and put it on.

[lucachiarelli]

Didnt know that it would be hard to change the pulley back to standard. Im stuck now because my car needs to be returned back to stock when i trade it in
Dont really want to buy a new sc either

[MINI-Morgan]

Quote: Originally Posted by Capsaisin (original)

To fit the original pulley back, first you have to hope you didn't damage the mating surfaces of the pulley or the s/c shaft when it was originally removed. Then you have to heat the pulley and align it correctly on the s/c shaft. Taking great care not to cook the s/c end bearings. If it's not aligned you will get belt squeal and possibly shredding or jumping off the pulley.

The best of luck, it's not something I would do.

The GTT pulley is bolted to the centre, which is heat shrunk on. But GTT use their own methods for doing this, and no doubt the whole thing is jigged for alignment.
To put a GTT pulley back to standard, you buy a standard diameter pulley from GTT and bolt in onto the centre piece.

Great Post! So you have to pay to get a smaller pulley and then pay for a larger one again. Ouch!

[MINI-Morgan]

Quote: Originally Posted by lucachiarelli (original)

Didnt know that it would be hard to change the pulley back to standard. Im stuck now because my car needs to be returned back to stock when i trade it in
Dont really want to buy a new sc either

Yeah I know the feeling! It seems the tuners miss off the bit that its not easy to go back to pure stock and arent eager to help you do it either.

[Rigsey]

Quote: Originally Posted by MINI-Morgan (original)

Yeah I know the feeling! It seems the tuners miss off the bit that its not easy to go back to pure stock and arent eager to help you do it either.

Do you think a dealer will notice when traded in? I very much doubt it; last car I traded in they did not even look under the bonnet; the pulley is not easiest thing to spot by the un-trained eye ..

[lucachiarelli]

True but my pulley is a gold colour and you cant just send the car in with a pulley, plugs will need to stay on and if you have a map to suit that will need to stay on. There is quite a difference in a pullied cooper s to a stock one.

[MINI-Morgan]

Quote: Originally Posted by Rigsey (original)

Do you think a dealer will notice when traded in? I very much doubt it; last car I traded in they did not even look under the bonnet; the pulley is not easiest thing to spot by the un-trained eye ..

Mine would probably be a private sale and so will have to mention it. Its just unfair not too. I agree that in almost all cases they will never know.


But,

Come belt changes im sure garages will fit the stock too long belt which will lead to slipage and possibly even breaking. Then its a set of new pulleys. Or as mentioned above there is even the risk of stock plugs being run with 95 fuel in summer flat out and bang.

I want to sell the car safe in the knowledge it will be running right and with no hidden problems.

Anyway....end of me going on and on and on...

[lucachiarelli]

How much would it be to swap supercharger for a new one with standard pulley?

[MINI-Morgan]

£50-£100 for the SC, £100-£150 for fitting at a rough amount from the cost ive been quoted before.

[lucachiarelli]

Thats probably the safest option as to allign the stock pulley back on with such little time while its still hot would be difficult.
It costs more to swap sc but at least you will have peace of mind when its sold on.
Now all i need to do is take bbk, intercooler, exhaust, manifold, cai etc off aswell lol

[Capsaisin]

Quote: Originally Posted by MINI-Morgan (original)

Great Post! So you have to pay to get a smaller pulley and then pay for a larger one again. Ouch!

I see you recommend fitting another s/c. Would that be cheaper and easier than fitting the GTT pulley?

[Rigsey]

Quote: Originally Posted by MINI-Morgan (original)

£50-£100 for the SC, £100-£150 for fitting at a rough amount from the cost ive been quoted before.

I think you'll be hard pressed to get an SC for £50-100 now; there seems to be less in circulation...

I've got one sitting my loft just in case I need

[MINI-Morgan]

Quote: Originally Posted by Capsaisin (original)

I see you recommend fitting another s/c. Would that be cheaper and easier than fitting the GTT pulley?

I didnt recommend it..... the GTT pulley replacement for GTT pulley owners is the cheapest option and can be done DIY fairly easily if you can compress the tensioner. I was just interested in the alternatives.

[MINI-Morgan]

Quote: Originally Posted by Rigsey (original)

I think you'll be hard pressed to get an SC for £50-100 now; there seems to be less in circulation...

I've got one sitting my loft just in case I need

Very true and certainly less ebay ones but I have been quoted twice now within that range for a used stock SC.

[BUTTONMUSH]

Gutting isn't it, I was all ready to go and have a 15% pulley and wham...it's a total pain to revert back to stock.

Having a pulley is going to reduce both the cars resale value AND potential buyers.

I only wanted it for increased oomph lower down as I rarely go over 5K so it wouldn't have been a bad buy for it's next owner as I really look after it and never abuse it.

It's bang on that selling a car with the pulley and not telling is going to suffer low octane, stock belt, plugs issues at some point.