[SBK Project: 2v Motor - 748/996 era Frame]

[Monsterlover]

900 guts fit a 748 case?

[junior varsity]

we are going to find out. I measured with calipers the stud spacing on the cutaway 4v motor model in AMS (Dallas) yesterday, and measured the stud spacing on this 02 900ie engine and they were the same. Oil passage ways looked like they were in the same places.

Now my only thoughts are "i hope all the transmission parts fit up - gears, drum, etc".

[Speeddog]

All that stuff will fit.

Try to get ahold of a wide-ratio transmission.

[junior varsity]

i know you've said it before, but which years are which?

[Speeddog]

i know you've said it before, but which years are which?

From Brad's site:
http://www.bikeboy.org/ducgearing.html

All 851, 888, 916 and 996 Strada models, 916SP, all 900SS, ST2, ST3, ST4, ST4S, S4R, all carburetted 900M, 1000SS, 1000M, Multistrada.

[Monsterlover]

So an m900ie would not be wide ratio?

[Speeddog]

So an m900ie would not be wide ratio?

Not from the factory.

Now, it *is* Ducati, so one may have slipped through. 

[1KDS]

Here's a guy that has some cases and other 748 motor parts
http://www.ducati.ms/forums/showthread.php?t=76955

I guess I'm at a loss as to why my 900 bolts up in my 748 frame and yours doesn't 

[Speeddog]

IMO, that kind of 'wont bolt up' is due to a bent frame.

[junior varsity]

but my frame is perfect - never been used?

i think the big change is on the oblong holes at the swingarm pivot and the 999 style frames that have a reversible "bushing" or plate that makes it easy for the Radical Ducati bikes to bolt up.

[Monsterlover]

Bigger hammer?

[junior varsity]

haha. Camera battery is charged. Tomorrow will be "pic" heavy.

[1KDS]

i think the big change is on the oblong holes at the swingarm pivot and the 999 style frames that have a reversible "bushing" or plate that makes it easy for the Radical Ducati bikes to bolt up.

Yep you're exactly right, I hadn't thought of that

[junior varsity]

Not much new from today - gotta find my camera cable.

1) Started thinking about reassembly in the distant future. Is there a reasonable alternative to the head-nut tool? I think when I priced it a week or two ago, I shat myself.

2) Likewise, good tool for wrenching off the castle nuts on the belt pulleys? There's three. I don't plan on reusing them. I had thought about makeshift strapwrench to hold the pulley using the old belt, but no thoughts about grabbing the nut itself and wrenching it loose. I'll be switching to the VeeTwo nuts next time, and I have their tool for the pulley (and it uses a simple socket for those nuts).

3) What does a person need to do for the nuts on the big engine gears that have a bent washer on them? (Also, when rebuild time comes in the future, how does one put it back on? Use new washer and bend the edge or reuse? (I am venturing towards uncharted territory).

4) Snap rings. OK to reuse? I went on and swapped out the oil pulley gear for the lightened one, and you have to pull two snap rings to swap 'em - likewise with the starter/idler gear's snap ring.

Since we are in the motor's nether-regions, I want to tread carefully. I don't think these things are in the Haynes or LT Snyder manuals...

[ducpainter]

reuse the bent washers...

reuse snap rings...if you look closely there is a sharp and a rounded edge. The sharp edge goes away from the direction of force...if you get my meaning

I don't have any good info on your other questions.