I am in the process of rebuilding my supercharger, but do not have the torque specs. Does anyone have info on rebuilding the supercharger?

 

Jaguar considers the supercharger to be a non-servicable item. Therefore, there are no published rebuild procedures in the Jaguar manuals.

Your best bet is to find one of the Eaton M112 rebuild articles on the internet.

 

1. 15 ft/lbs per eaton
2. use an alternating pattern from the center outward
3. use a very thin bead of RTV (preferably Loctite Ultra grey 5699)

 

Here is a DIY on M112 Eaton Supercharger with a lot of photos:

The Infamous Project – Custom Vehicle Modification Live! » Blog Archive » M112 Eaton Supercharger Rebuild

Just click on the slideshow to view each of the steps to rebuild it (use the double >> to view each next step).

Jim Lombardi

 

you might as well port it since its out

 

If you like to make it louder, this is certainly a good option, not for more power.

 

Another thing to consider is moving up to a Gen 5 M112 off of a 4.2 car. I did, and it does make a noticibile difference in that it doesn't fall off boost as much at high rpm. the bearings are a ton larger as well, and the coupler design is supposed to be better as well. All i had to do was slightly modify the intake elbow for the bigger bearings with a Dremel and use a 4.2 elbow to blower gasket. And a 18,000 mile Gen V only cost me $600 shipped to my door. Cheaper than a rebuild and it has a couple advantages. Food for thought.

 

exactly what i did and at $600 too
boost comes on a little sooner and stays longer too.
...its either the blower, or the tablet of viagra I slipped into the gas tank...

 

Hi Guys


Is a 4.2 s-type supercharger the same size as a 4.2 XJR one ?


Thanks

 

The 4.2 also has a 112 c.i. supercharger, but the 5th
generation M112 fitted to 4,2L engines is different in some
ways from the 3rd gen fitted to 4.0L ones. Someone
else will chime in soon with more info I'm sure.