auto-manual gearbox sensor Qestion

[shadrack]

Right so av got all my parts now, swapped pedal box and fitted clutch line so saturday I'm going to go for it and swap it all inc diff, my question is my gearbox 325 one going on 325 has two sensors near the flywheel and I wondered where they plug into on the car, might be a daft Q as sort of hoping once I get laid under her it will be easy to work out where they go by lengh and plug, just thought it be handy if I had a head start! Thanks

[Grrrmachine]

Need a few full stops in there; I can't work out what your question is

If I read you right, you've picked an early pre-facelift gearbox with the sensors mounted in the side. If you're fitting this to a facelift M20 with Motronic 1.3, you won't need those sensors. You can either remove them and block up the holes with a custom-made plate, or just leave them in and tie the useless cables up somewhere safe.

If this is a prefacelift M20, those two cables are part of the engine management system (Motronic 1.0) and will plug into the existing loom.

[shadrack]

Arh right cheers mate. I see what u mean about full stops its this bloody phone! Yeh its goin on a pre face lift 87 car so will it be pretty obvious where to plug em in the loom? I'm hoping so cos so far what I've dones been a pieice a p#ss so will be glad to get a manual again! Then I just need a turbo lol thanks

[shadrack]

whats this look like, i didnt know that i dont know what the flywheels off facelift or not!

[shadrack]

also do i need a pilot bearing?

[Duke137]

Can the lug be added to a facelift flywheel? Is that the only differences between the 2 flywheels pre/post facelift?

That flywheel defo came from a facelift car dude

[Kedge]

Don't think they can, don't think the holes are there on the facelift flywheel but could be wrong.

[shadrack]

What do the holes look like, there are some holes in the flywheel, with the clutch plate one there's three gaps in the plate-flywheel, in one of these there's a pair or shallow holes in the other a pair of deep holes and in the third gap there's no holes

[shadrack]

Is there a way of telling which manual flywheel I will need before I take the auto box out as mine is a pre facelift car however the fly wheel changes I can find are listed as 85-87 as pre and 87-93 as post, my car is an 87 just to realy make it hard so could need either!!

[Brianmoooore]

A complete solution to the problem, which will also pay dividends performance wise, is to ditch the primitive pre facelift engine management, and to perform the fairly simple task of upgrading to the much more advanced facelift M1.3 system.
Telling us the last three numbers on the ECU you are using will tell us exactly what system you have now.

[shadrack]

A complete solution to the problem, which will also pay dividends performance wise, is to ditch the primitive pre facelift engine management, and to perform the fairly simple task of upgrading to the much more advanced facelift M1.3 system.
Telling us the last three numbers on the ECU you are using will tell us exactly what system you have now.

I will get them digit tnight, wish I'd just v8 it now! Other project I'm considering is turbo in winter so if I changed to a system that would accomodate that would be good

[shadrack]

A complete solution to the problem, which will also pay dividends performance wise, is to ditch the primitive pre facelift engine management, and to perform the fairly simple task of upgrading to the much more advanced facelift M1.3 system.
Telling us the last three numbers on the ECU you are using will tell us exactly what system you have now.

073 so i have the wrong flywheel!

[shadrack]

right so ive got the pre facelift flywheel with a riased up rectangular lug on the side, does one sensor moniter this and the other the teeth?

[Kedge]

They both monitor the tab, the teeth are only ring gear for the starter motor.

[shadrack]

oh, thers just the one tab tho?