First engine drop - Mystery transmission

[maresdesign]

Fellow Pelican's I dropped my motor/tranny together yesterday on my 1971 911E. I thought the transmission would be difficult to separate from the motor but after I un-bolted it from the motor it separated very easily.

I thought the 71 tranny's where the "Pull" type? I did find "902/1" stamped on it. I also noticed the Oil tank had the two "nipples" on it consistent with the "Sportomatic" oil tanks.

Could this tranny have been swapped? I've added a pic of the motors serial number if someone could help me identify it.

[javadog]

Yes, the transmission and other parts could have been swapped. I think the 902/1 was a 5 speed used during the SWB era, maybe around 1968. Your car should probably have had a 911/01. Yes, it used a pull-type clutch.

JR

[maresdesign]

Here are pics of the clutch and flywheel.


NOTE the holes along the outside, is this stock or a modification done to lighten it? Vent it?

[Bob Harriman]

902/1 is a 911/912 with gear ratios AFMSX for MY years 65-67. The 902/01 is a four speed for a 68 912 with gear ratios AHQX

[maresdesign]

Ok, Thanks guys. Further research shows any 911 or 914 6 bolt 215mm flywheel will work.

Anyone know anything about the motor's serial number?

[javadog]

Fairly early production 71E targa motor.

JR

[maresdesign]

Originally Posted by javadog

Fairly early production 71E targa motor.

JR

Good to know since it is a Targa and a 71. 2.2 Liters is what I understand.

[javadog]

Yes, 2.2 liters.

JR

[Trackrash]

I have a '71 trans out of my E sitting in my basement. PM me if you are interested.

[pors1968]

65-68 5 speed and clutch and flywheel. you will be better whith 70-71 trans diff is bigger and you get more clucth 225 .But clutch flywheel bearing are more expensive.

[maresdesign]

I am going to keep this tranny in my 911, I like the gearing and the shift pattern suits my driving style. Thanks everyone.

Originally Posted by Bob Harriman

902/1 is a 911/912 with gear ratios AFMSX for MY years 65-67. The 902/01 is a four speed for a 68 912 with gear ratios AHQX

Don't know if you acted on this, but a 902/1 is a 5 speed trans from a '65-67 912...

902/1 32 5 11:34
A 18:34
F 22:29
M 25:26
S 28:24
X 7:31
Simplified 220 001-
221 721
(to 26 Jul 65)234 001-
238 942 standard except USA/CDN,
'65-'67 model years Diagram