rjm27

So, I'm working on my maggie install, got the HEX and HEX pump in, and I'm prepping the used mp112hh I picked up. I removed the Reichard Racing 8 rib 2.9 inch pulley and went to install the magnuson 6 rib 3.2 inch pulley. Low and behold, the internal diameter is different between the pulleys, and the 3.2 id is too small to install on the jackshaft. Looking at the pulleys out there for sale, I'm wondering if my carbon fiber jackshaft is not from magnuson, and requires different size pulleys. Anyone have the answer on this one? Thanks.

BTW, I'm taking lots of pictures and will post a build thread when it's up and running.

rand49er

The earlier MP112 units were equipped with a steel jackshaft. They went to a carbon fiber one later. Another member here and who lives close to me was one of the first guys to put a maggie on his '04 V, and he has the steel jackshaft with the 3.2 pulley. Mine is a later maggie with the carbon fiber jackshaft and the 2.8 pulley.

It *could* be that the steel jackshaft is a different diameter than the carbon fiber one. Others here may be able to confirm that.

raven154

iTrader: (14)

The jackshafts are the same from steel to carbon. Looks to me like you have the wrong pulley.

I looked up the number and crosses to a nose drive pulley off an M90 eaton.

raven154

iTrader: (14)

Here is what you need if you want the 3.2

http://www.pulleyboys.com/store/prod...&cat=37&page=1

rjm27

Thanks. Called Magnuson today and they sent me the wrong part. They're sending the correct one out today.

punishmentcycle

iTrader: (6)

That blows. I have a 3.2 and 2.8 6 rib pulleys i no longer need. Just a tad late reading this.. Sorry man