Supercharger rebuild by John Bond Performance (1 Viewer)

NLXTACY

Wits' End
Supporting Vendor
Joined
Dec 7, 2007
Messages
28,174
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Medford, OR
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absolute-wits-end.com
Supercharger Rebuild

At damn near 100k miles on the nose by Supercharger started making extra supercharger noises and power was noticeably dropping off. Knew the day would come.

The supercharger was removed and very carefully boxed up to send out to John Bond Performance in Iowa. It would take about two weeks for him to get it and evaluate it for rebuild.

Got their report in a PDF detailing the issues along with an estimate of $1500 for the rebuild. This turned out to be significantly more than I had expected since most rebuilds run about half that. But as the evaluation detailed, the bearings were run on low oil for a long time. I’d have to look at my notes to see if I had changed it and just underfilled it or if I never checked it (unlikely) or it was leaking (not likely).

It was another two-ish weeks and the supercharger was finished, bill paid, unit shipped, and now it sits waiting to go back into the truck. This will take a bit since I have so many other things to complete first.

Anyway, wanted to just post up about this rebuild. I’ll detail the install when it’s time.

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jfz80

Cruisin’
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Jun 5, 2005
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Madison NC
Ugh. At 150k since install with only 2 oil drain/fill I fear the same. Interested to hear your thoughts after reinstall.
 
Joined
Feb 15, 2017
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Worland, WY
1500$ and didn’t upgrade to the newest Gen rotors ? ?
 
Joined
Feb 2, 2004
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11,315
Location
Washington
Looking at their report it looks like regardless of if the oil level wasn't right that it would likely have needed work. The lobes having flaking coating, which it lists as ceramic, going through the engine could cause cylinder wear. Good time to get it done.
 
Joined
Nov 17, 2021
Messages
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Location
Arlington, Wa
Ugh. At 150k since install with only 2 oil drain/fill I fear the same. Interested to hear your thoughts after reinstall.

I'm not sure the oil change interval but the m90/m112m/m122 Eaton is a 100k interval.

For anyone considering a rebuild I'd look at
As an alternative to jon bond. JB has an earned a reputation amongst various communities as a bit of an over priced a******.
 
Joined
Nov 17, 2021
Messages
1,909
Location
Arlington, Wa
Looking at their report it looks like regardless of if the oil level wasn't right that it would likely have needed work. The lobes having flaking coating, which it lists as ceramic, going through the engine could cause cylinder wear. Good time to get it done.

That coating is Teflon and on lightnings we strip it. The cobra blowers (Eaton m112) don't even have it.
 

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