Club G40 Forum

Technical => Superchargers / G-Lader => Topic started by: Phil on May 27, 2009, 12:42:25 PM

Title: Death of a G lader
Post by: Phil on May 27, 2009, 12:42:25 PM
(http://img.photobucket.com/albums/v609/philj/2605200910666666.jpg)

Done 200 miles since a rebuild, still running it in, was sat in traffic. What would cause that?
Title: Re: Death of a G lader
Post by: PeteG40 on May 27, 2009, 01:01:30 PM
maybe it had debris.

However i've seen two with deep cracks.. which would leave me to beleive they've been dropped or been knocked about whilst being posted!
Title: Re: Death of a G lader
Post by: PeteG40 on May 27, 2009, 01:09:18 PM
ps jabba offer a warranty on rebuilds, unless its a timing belt snap and that doesnt look like one
Title: Re: Death of a G lader
Post by: quiksilver_jake on May 27, 2009, 01:52:07 PM
one of my psd ones did this after 100 miles !
Title: Re: Death of a G lader
Post by: G-spot on May 28, 2009, 08:45:27 AM
Is it just the scroll or some of the casing too??  Appears to be two pieces in the picture? Overblending around the inlet can thin the wall section making it prone cracking from cyclic fatigue as its on the end of the track where it needs extra thickness for strength.  I'm not sure whether Jabba do a crack detection on the parts once stripped down, as it may have been there before rebuild and the extra weight of fresh grease, may have given a bit more vibration, resulting in failure.

If its just the scroll then I'd blend the end to remove any stress raisers, rebalance, and get it back on, pending the failure has caused no further damage??
Title: Re: Death of a G lader
Post by: polo classic on May 28, 2009, 01:41:15 PM
I'd say foreign object......
Title: Re: Death of a G lader
Post by: scotsjohn on May 28, 2009, 06:06:50 PM
How are the bearings looking Phil?
Title: Re: Death of a G lader
Post by: Phil on June 01, 2009, 03:03:34 PM
Bearings looked new.

Doubt a foreign object.

Tis just the scroll I think. I sent it back to Jabba, see what they say. ::)
Title: Re: Death of a G lader
Post by: Yoof on June 01, 2009, 07:26:12 PM
You got the other bits of lader to take a pic of?

Title: Re: Death of a G lader
Post by: Karlos the jackyl on June 04, 2009, 06:42:04 AM
I'd say something has gone in that.