Legend has it that my Porsche 906 build is still moving forward.. To support that notion, I happened to attempt to turn the input shaft on the 914 transaxle I bought for the 906. It wouldn't budge. The drive flanges for the axles would turn, but in opposite directions. So the diff works, but it was cogging and generally not healthy gearbox like.
Turns out that this particular gearbox was apparently used on one of Jacques Cousteau's submersibles and is so crusty inside that it may not be salvageable for road and track. I bought this thing because it's a side shifter.
My question is: how can/is it possible to/what's involved with putting the insides of a tail shift 914 gearbox inside a side shift case. Can I use a Vanagon donor? I think I may just try to find another 914 side shift.
I've got one for sale, it's a side shift out of a '74 914. I want it out of my garage and it sounds like you need one
M030
Dork
1/13/17 4:58 p.m.
In reply to Apis Mellifera:
My vote is a Boxster transmission. They are not that expensive, they are fairly durable, and they shift really nicely
It needs to bolt to an aircooled 911 engine.
Hopefully Peter Frampton and I can get a deal together. This evening I took the intermediate plate off the one I have and got all the gears to move and shift forks moving, but once bolted back together, it's basically locked up again. I need new insides.
Apis Mellifera wrote:
My question is: how can/is it possible to/what's involved with putting the insides of a tail shift 914 gearbox inside a side shift case.
I converted a side shift 914 trans to a tail shift. I still have it some other trans assembly. Never made it into my beetle unfortunately.
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Remove side shifter and plug hole.
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Make an extension for shaft #36 so it pokes out the end of the case.
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Bore out the case and press in a bronze bushing with accommodations for a seal (I turned this part on a
lathe) so the shaft is supported and sealed.
This was like 10+ years ago though I may have missed something there but that's the gist of it.
Setting up the diff in those is a real PITA, a stack of gaskets sets the pinion depth on one mating surface, and an other stack sets your preload... Porsche says you should use a $1000 tool to do this. You also need a jig to hold all the shift rods while you assemble the trans. I have that jig if you'd like to borrow it.
jig
