MOT FAILURE!!! (and LSD question)

[lee bishop]

can you tell by just looking at the case of the diff?

[M11RF]

No mate... i know that much.

[RS2000&MEXICO]

dave will be your man when he comes on...

[lee bishop]

come on, i gotta go out on the razz in a bit......... brain?? dave???

[Banishit]

whos Brain ?

if you ment Brian LOL I know nothing about them, I know what they do and what there for


I though the way to tell is jack the back end up and turn one wheel quickly and if the othersides wheel goes in the opposite direction its a normal one

or jack one wheel off the ground and try and turn the wheel quickly if it starts to bind theres a LSD in there

[martin c]

If you jack the car up and one wheel spins the opposite direction
to the other it means there's no lsd if it spins the same way
you've got a lsd
Hope this is of help

[Roger Miller]

the bloke doing the mot said i had a LSD, but i didnt think i did! when the car is jacked at the rear, and one wheel is turned, the other goes in the other direction, (after a little back lash is taken up) but i thought that both wheels would rotate in the same direction if i had an LSD?? can anybody confirm this please,

No not limited slip.

This is what happens with STD diff.

and

U need a new service guy, cause he should know!

[Roger Miller]

A plate type diff...............



As opposed to a worm gear diff....................



Looks like this, for a English axel............




A "plate diff" is "shimmed up" at assembly time so that it gives at least 50LBS of break away torque, when tested.

This means if a torque wrech is use on a left axel center and the right axel is held, the reading on the wrench should be 50lbs. etc.
Incidently, note these diffs have 4 "spider Gears" fitted. The STD units have 2. No doubt, those who have broken a diff will recognise this.

The "Ramp Angle" , on internals, can also be varied.



This provides a way of varying the lock up, when driving car.

A car needs little or no lock at corner entry, but a higher percentage when leaving it.

Next the plates them selves can be stacked differently to provide differing lock up "attitude"




Also,people overere are trying to make the gear type adjustable.




Overere, the axels vary abit.
1600cc cars have better axels.
U can see the axel reducion area.


[b]The very early diffs had a cast steel end plate. these Need to shimmed up LESS due to their de-creased strength.

Steel ones are machined all over.


Take it easy

[dasadrew]

This is a bit embarassing but.....

There have been a couple of posts recently that say if your backend fishtails off roundabouts etc. - you need an LSD!

Up to now, I had thought that if you're going round a corner a bit too fast under power, and you HAVEN'T got an LSD, then the power to the road will drop off 'cos the inside wheel has lost grip and one wheel alone can't drive the car. This would mean that the car generally gets slower, and the situation sorts itself out.
??

With an LSD, the power to the back wheels can be maintained and they give you permission to get into deep sh it!
??

I would have thought an LSD on a roadcar would just allow a non-professional to get himself into trouble.

I thought the idea of an LSD was to enable a professional driver to keep the power on. Indeed, on a special stage start on mixed surfaces, I would have thought the "fishtailing" which some posts think will be cured would actually result by having an LSD whereas a non-LSD would just fizzle out when one side got into mud.

(All of the above is with the exception of LSD's on roadcars in southern Germany when you have them simply to get grip at all on snow and ice)

[yellow peril]

Lee
I have some rear shackles bushes, genuine ford rubber ones, if you dont get any joy anywhere else.
Happy to let them go to a good home, i am polybushed through out so dont need them.

[lee bishop]

cheers yellow peril! my ford dealer assures me some will be in stock tuesday, but there is still a chance they have ordered the wrong item..... i'll let you know

[yellow peril]

no problem mate

[lee bishop]

sorted my steering rack gaiter today, thats fitted and im happy, i also got my bushes from my local ford dealer, and they are not what i expected, they look the right size, but the section of bush that fits into the rear leaf aperture is triangle shaped?? is this correct?? the part number of the bush is 75AB 5719-AA L&H25 somebody please tell me i have the right bushes before i take my car apart......

[RS2000&MEXICO]

thats spot on lee thats how they are m8....

[lee bishop]

phew......!