pulleys catching the head??
Turbo Mini Forums

Hi all

I really need some help, has anyone ever had this happen before.





the only thing that has changed since the last build is the head but its still a 12g295 casting.

any thoughts

what should i do

luke

Just to add the belt lines up fine with the crank pulley. So there's something odd about the head??

I found a 2.5 -3 mm ish spacer plate on the old water pump i had on my standard 998 engine so when changing the pump i put it back in behind the pully wheel, could this be the problem?

I am pretty shure a 3 mm spacer wouldent mes up the alienment of the fanbelt that mutch yet still give you the clearence your lacking.

Cheers, Andrew

______________________________________________________
Little car Little power........... For now That is!!!!!

1983 mini down paid, must collect soon and get welding!
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You have this problem if you fit a 940 head to a 998, the simplest solution id to fit the smaller pulley.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Hi thanks for the help, unfortunatly i cant space the pulley away because if i do the pulley gets too close to the supercharger belt.

So any ideas where i can get a smaller diameter pulley from?

Where there 2 diameters as standard?

Thanks
Luke

Edited by 998turbomini25 on 22nd Feb, 2010.

This is the smaller one, but fook me it's expensive

http://www.minispares.com/Product.aspx?ty=...961&title=WATER PUMP PULLEY pre 198...

I'd put a wanted add up.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

I might have one lieing round actually

Where's the white fan from...?

[X] nail here for new monitor

I had this recently with a skimmed 12G295 on a 998.

A little grinding of the head and pulley was all it needed.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

The white plastic fans were factory standard for a while here in Oz, but they deteriorate with heat & age, so they are known as the exploding white plastic fans.

I'm sure I've seen white fans in MiniSport's showroom.

1275 PULLEY WILL SORT IT

always looking for them bigger bunches of bannanas

I would grind a notch on the head & maybe slim down the back edge of the pulley.
Don't add spacers to one pulley, it will put it out of alignment with the other pulleys & cause belt wear probs, unless you spaced the other pulleys to match (but I know you aren't going to do that).
If you fit a smaller pulley the water pump speed could be adversely affected, & you would have to use an alternator belt to match, not that fitting a different belt would cause a problem but you should be aware of it.

The earlier cars used a smaller pulley without problems, I would get hold of one of these and then job done!

On 22nd Feb, 2010 Asphalt said:
Where's the white fan from...?

Edited by Sprocket on 22nd Feb, 2010.

I dont know about te fan but i havent ad an issue with it so far?

however back on topic my fan is near as dammit 120mm at it outermost diameter.

cheers
luke

I have a pulley that is 98mm accross, so if your's is 120mm then problem solved.

PM me an address and I'll post it out unless you are passing anytime soon?

I have seen the yellow fans catch the fan cowling and still have all the blades, this white one just clipped the fual line when I moved it a little and lost ALL the blades in a split second!!

I think I have a couple of old ones in the garage if your stuck...

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!