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Post by paul1275s on Jul 16, 2007 15:29:40 GMT
Well, heres the damage after my gearbox failure at Brighton last week, as i thought the diff was the culprit, four teeth missing from the output gears. So far i've found two of the teeth, I think one other was pulverised by the crown wheel consequently punching a hole through the diff housing, the fourth tooth is still unaccounted for..... Managed to source another remote box through a wanted ad on minifinity, will inspect and fit that for now and rebuild my box slow time (with the help of someone who can weld ally casings!). The engine seems in fine fettle,the oil pump shows very minor scoring and the straight cut drops seem excellent so just a bit of a clean up, new gaskets and a new water pump for the donk. heres some photos     |
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Post by Simon1275mpi on Jul 16, 2007 15:41:36 GMT
Cross pin diff going back in there  |
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Post by paul1275s on Jul 16, 2007 15:49:44 GMT
I think that may be a good idea... ;D either that or ban you from my car.........  |
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Post by Simon1275mpi on Jul 16, 2007 16:25:52 GMT
It must of been the extra load of 12 cans of lager and your orange juice that was no much for your diff.
Interesting though, its normally the pin that fails on the diff.
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Post by paul1275s on Jul 16, 2007 16:49:34 GMT
taking the diff to work tonight for an autopsy, i think it probably will be recycled as a door stop....
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Post by Stephen on Jul 16, 2007 21:27:22 GMT
thats pretty bad, how old is that diff and where did it comes from? I suppose the extra strength of the 4 pin was too much for the teeth... lock it up!!!! or stick an LSD in there
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Post by Simon1275mpi on Jul 17, 2007 7:58:47 GMT
Thats a standard diff housing, guess the pin is standard too....?
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Post by Stephen on Jul 17, 2007 8:27:04 GMT
sorry im being stupid
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Post by paul1275s on Jul 17, 2007 16:29:18 GMT
Autopsy result; Cause of death; Excessively worn diff pin allowed too much play for planet gears, which in turn caused shock loading to strip four teeth from output shaft gears. Loose teeth in turn caught on crownwheel damaging one tooth and then getting caught between crownwheel and casing, causing casing to be ruptured and gearbox to consequently bleed to death. Contributing Factors; Smoking (tyres) 105 Bhp Right Foot too heavy Simon in car  |
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Post by Simon1275mpi on Jul 17, 2007 17:23:16 GMT
105Bhp on a standard diff pin!!  It did well!  |
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Post by Stephen on Jul 17, 2007 22:06:05 GMT
thats impressive
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Post by paul1275s on Mar 17, 2008 19:00:56 GMT
Got a new gearbox, ready to drop in, just got to swap the straight cut idler gear and first motion shaft over. Seven weeks to get the old girl back on the road...
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Post by Miniböttcher on Mar 17, 2008 21:30:40 GMT
so your not keeping the straight cut,
has this one got a x pin diff, if so you better buy shares in a tyre company as there will be no stoppping you spinning them up as you will not blow thw diff this time.
dean
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Post by paul1275s on Mar 17, 2008 22:16:06 GMT
yeah, keeping straight cut drops, got to swap them into the new box. Not a cross pin in this box but have enough bits to rebuild my old box with a view to fitting a cross pin diff on that one so at least if i lunch the new box I will have a spare ready to be fitted!
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Post by paul1275s on Apr 6, 2008 13:52:38 GMT
managed to make a good box out this lot, enough bits left to build another as a spare!  |
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It did well! 
