MT WIERD PROBLEM :o

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L

LP40_FG

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Ayt guys had the mt out yesterday and just started having some fun and bang something goes wrong mt no longer was moving for some wierd reason. i checked all the obv reason like the fly wheels gearing dog bones but they all seem ok. The wheels move then i pick the car off the ground, but when its on the group it moves very slowly and moves only when i rev it really high. guys what do you think it could be ?

any suggestions.

ill try get a vid up if that helps .
 
have you looked at the drive squares on the rear hubs maybe a lose grub screw also check the layshaft ones i had same sort of problem on mine but it was one lose grub on a wheel square its also the easyest one to check whip off a wheel a have a look
 
I had a similar problem a while back where the grub screws in pinion gear came loose & the shaft was spinning inside the gear. You just need to go through the above post by BtB & eliminate each item til you find the problem.
 
When yo urev it, does the engine bog, as if there's a resistance, or does it rev freely?
If it revs without problem, check out what moves and what doesn't.

Odds are it's the square drives. 2 things can happen here. The grub screws can come lose and the axles simply rotate inside the squares and/or you've overtightened the nuts to the wheels, forcing the squares against the bearings.

Al.
 
This is a reply by Bigger the Better to another post.
It's a step-by-step 'this moves, then this, then this' ...

Clutch
Clutch bell
Pinion gear
Spur carrier - Could be the issue if plastic
Spur gear
Spur shaft
Small spur shaft gear
Diff ring gear
Outdrives
Axle shafts
Drive cups
WHEEL SQUARES - Probably the issue
Rims
Tires

Thanks to Bigger the Better.

Al.
 
You might want to take a look at your brake disc/ pads on the layshaft.
I had a similar problem and realized that my brake disc was stuck to the gear carrier.
 
first we need to know when you give it throttle does it rev freely or does it bog down and struggle? revving freely is indicating a part of the drivline has failed completeley (gear come loose, bearing popped out, clutch shoes gone etc but if it bogs down there is resistance somewhere eg gear mesh too tight, bearing seized or even engine related.
 
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