White_FC

As silly as this question first sounds.. Please read on.


I seen a few posts on here about people using the N/A (9") flywheel while using the turbo transmission which usually comes with the slightly larger 9-1/2" flywheel.

Is this possible? is the mounting point of the starter motors the same in relation to the engine block? is the only difference the gear on the actual starter motor itself?
I thought it might be so I had a bit of a gander for some images...

I saw a few photos of both and the gear on the starter motor does appear to be smaller on the TII starters as opposed to the N/A versions.

I'd really rather not have to buy an aftermarket 9-1/2" flywheel stepped down to mate to my exisiting pressure plate. I realise I'd need a new clutch disc, thats no drama.

All I'm concerned about is the starter motor.

Anybody have one of both and care to take some measurements.

flamin-roids

I know TII and N/A auto starters are the same. As far as N/A trans go I've never worked with one. But I do believe the flywheel is different and would definitly require a different starter.

RotaryResurrection

iTrader: (8)

The gear on all the starters is the same, to my knowledge. What they changed, was the placement of the starter, on the bellhousing, to accomodate the flywheel diameter. So, if using a small flywheel with a trans meant for the large one, no, it won't work. Because the t2 trans bellhousing places the starter out too far.

Kenteth

Sounds like you're trying to cut corners. Although its a decent and well faired idea, your car won't like you for it. If you need a starters for a S4/S5 Auto flexplate will work for a TII. They aren't hard to find, or that expensive. Hell I have a spare one in the garage if you need it...

White_FC

Ok, cool, this is what I wanted to know.....
I'm sure i've seen a difference between the two starters..
Why do they have differeny P/N's?

heres an interesting photo...


Notice that the N/a starter (right) has less teeth than the turbo starter (left) however...
Look closely at the mountings, the N/A one would apparear to mount further towards the flywheel than then the turbo one...
yet the turbo starter has a larger diameter gear on it?

interesting.....

any comments?

*images courtesy of RXWASP of AusRotary Forums*

drago86

you can bolt an old ribcase bellhousing on a t2 tranny and you good to go with the NA stuff.

RotaryResurrection

iTrader: (8)

ON fat automatics, and big t2 trannies, teh case is large, so the solenoid is on the bottom. On the small NA 5sp trans, there is more room, so they put the solenoid facing up.

White_FC

Yeah I can see why that is....

But look at the gear diameter of the two starters and also the mounting bolt holes in relation to the centerline of the shaft....

It's interesting I thought...

The N/A starter has a smaller gear than the TII starter...
Yet the N/A starter is mounted _much_ further forward 'into' the bellhousing than the TII starter.

This is what got me wondering that the actual place the starters bolt to, in relation to the engine block, is the same?

If someone has both gearboxs you can find this out quite easily. Obviously the 'Top' mounting bolt for both starters will be the same. Have a look at the bottom bolt hole on both in relation to the transmission mounting bolt hole just below it. Are they the same? Anyone?


and thanks drago86, hadn't thought of that, I also have acess to one of those bell housings for free anyway, so if this DOESN'T work when I get my TII tranny I'll just use that.