Mpi pulley

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bachey

Free Member

Mar 13, 2009

38

4

8

Libby Montana

• Jan 2, 2010

• #1

Just wondering if anyone else has destroyed an MPI pulley like I did? Wondering what the cost of a new one is. Its killing me having to wait till monday to find out. Its from a stage 1 kit and its the pulley off the crank.

 

snocattin

Well-known member

Premium Member

Nov 28, 2007

145

54

28

59

NW Montana

• Jan 3, 2010

• #2

I recently bought a top pulley for 80 bones.
The bottom is probably a little more than that.

Did the TaperLok come loose..??

It is imperative that you install the pulleys per MPI's instructions using Tempilstik chalk and proper heat.

 

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bachey

Free Member

Mar 13, 2009

38

4

8

Libby Montana

• Jan 3, 2010

• #3

Yes the taperlock came loose letting the pulley spin on it, thus really egging out the inside of the pulley. I had removed the pulley previously to fix a seal and failed to install it properly. I read the install instructions yesterday after I brought the sick sled home. I will definitely be putting it on right this time!

 

andre162

Member

Premium Member

Jan 8, 2008

108

7

18

northern california

• Jan 3, 2010

• #4

did it damage the output shaft? make sure you take a good look at it before you put the new pully on. I had the same problem last year and once i followed the directions from MPI the problem seems to be solved.

 

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bachey

Free Member

Mar 13, 2009

38

4

8

Libby Montana

• Jan 4, 2010

• #5

I'm pretty sure the shaft is allright. I haven't looked it over very well yet. Been a little upset about it anyway. Ordered my new pulley today ($107 plus some shipping) I'll get her running again Friday. then hittin' the snow on saturday!!

 

RACINSTATION

Well-known member

Lifetime Membership

Jan 14, 2003

7,503

3,459

113

Idaho

• Jan 4, 2010

• #6

HEEEEEAAATTTTT. When installing the pully heat the taperlock and then install to the proper position (so it is aligned with the other pully), then heat it again and put the set bolts into place using red loctite.

I have found that this works every time. Always check the 1/8" bolts at 10 miles, 20 miles, 30 miles, 50 miles and 100 miles. They should be seated well by then. Using heat they should not spin after initial setup and be friends with the shaft from then on out.

PM me if you have any questions, and MTN PERF has always been really good for support. Talk to Darrell if you can, very sharp guy. Heath is always willing to help as well and can be reached on here most of the time.

 

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bachey

Free Member

Mar 13, 2009

38

4

8

Libby Montana

• Jan 5, 2010

• #7

Well I will be putting the new pulley on Friday and you can bet I will be calling mpi right before hand. I've talked to Darrel before... poor guy seems very busy. I plan on taking a paint marker and marking shaft to taperlock, taperlock to pulley, and setscrews to pulley. that will allow me to be positive that everything is staying put. Thanks for all the advice guys.

 

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bachey

Free Member

Mar 13, 2009

38

4

8

Libby Montana

• Jan 10, 2010

• #8

I got my phazer put back together on Friday, rode saturday. Pulley stayed put. its all better now.