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#1
20-11-2009
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Cat Sx diff giving me HELL
Hi people
Just got the Cat up and running after waiting for all the parts, electrics etc. Striped and cleaned the both Diffs before running. Ran it in the house just to see if the Diffs and slipper are loose, very small area, only big enough for half throttle and brake, they were loose.Tightened the front and rear Diff perfect and the slipper. Tried it again and there was a rubbing noise/diff sliping sound. Thought it was the slipper. Had a look at the car and the front diff was just sliping, no Diff action at all. One minute is was fine then there was nothing, no Diff action on the front. The rear was perfect. The only thing i hate about the Cat Sx are the Diffs. Have taken them apart so many times, follow the manual correctly and they still give me hell. People please help  Cheers Chris B 
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#2
20-11-2009
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did you back of the grub screw before adjusting the main diff screw, and did you re tighten it after? mine run for months at a time no worries,
__________________
Mattys the driver,my names carl
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#3
20-11-2009
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Yeah did that. The rear Diff is fine, tried to tighten the front Diff, loosened the Grub screw as normal tightened the hex screw and did the grub screw up. Was fine for a bit, then just went loose,bolt was tight and grub screw. no diff action at all.
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#4
20-11-2009
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has the center screw snapped, i had that happen once or twice,turned out to be a faulty diff half, replaced that job done,
__________________
Mattys the driver,my names carl
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#5
21-11-2009
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No screw or grub screw broken. Took male and female parts apart, Diff balls were ok, looks like no wear, lots of diff lube still in the Diff, put some more in anyway. Tighten the Diff and placed in back in the cat, checked grub screw and screw were tight and wasnt sliping. Tyred it again and it seems fine
 no sliping or anything, it is now a diff. So strange Am racing tomorrow so will find out if the diff stays that way  Will let you people know
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#6
21-11-2009
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next time its apart just check the washers between the bearings in the center of the diff are in the right positions, something must have slipped and popped back in place in the rebuild,?
__________________
Mattys the driver,my names carl
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#7
21-01-2010
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Quote:
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#8
21-01-2010
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if when u build it it has one tight spot there is a chance you may need to change the diff half the holds the diff screw, or clean it out, dirt gets in there
__________________
Mattys the driver,my names carl
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