I made a closer inspection of the gear sets today. Looks like 1st on the main shaft is worn pretty bad. How do we fix that? The rest of them look OK, to me. Are they?
I also got the diff out. Looks like he only issue in there is a missing magnet pick for the speedo ring. Repairable?
I won't get till work on it again till next year but I'm not sure what to do next anyway.
Happy New Year everyone. Feels like I've been away from the car for a month yet it's less than a week. Strange.
Tonight I got to look more closely at first gear on the main shaft. I'm concerned this might be worn. What do you think? Doesn't photograph well though.
Then I got to disassemble the pinion shaft.
I gave everything a quick once over and found a few issues. Here's one obvious problem. I don't think that ring is supposed to be around the dog teeth like that and those bent bits used to be inside it!
I'll post more issues tomorrow if I get chance.
Today I did more research, separated the syncros on 1st and 2nd, inspected the rest of the components and drew up a parts list.
The first thing I have decided today is that 1st gear is not worn out. I don't think it is pristine but at $2500 it better fall out of the car and onto the road if it wants replacing. I looked at pictures on line of others and they do look very similar so it stays. Get used to it.
So I managed to disassemble the syncro rings on 1st and 2nd. Those snap rings are pretty tough. You can see the carnage on 1st, 2nd doesn't look too bad.
I'm going to replace everything associated with these two gears, except the gears themselves. I just need a tool to get the dog teeth rings off.
I then looked over the main shaft gears. I've decided to leave these alone as, in my opinion they look pretty good and I've never had any issues shifting 3 to 5,
So here is the parts list so far. Did I miss anything?
1st gear brake band (37) 1st gear dog teeth 1st gear synchro ring (39) 1st/2nd shift hub (41) 1st/2nd shift sleeve (42) 2nd gear brake band (37) 2nd gear dog teeth 2nd gear synchro ring (39) accelerator pivot bushing (13) Main shaft lock nut Pinion shaft lock nut Transmission Cover O-Ring Transmission Gasket Set dog tooth ring tool
There's also a few engine pieces to replace and add a new cutch cable and helper spring. I still have to decide if I'm upgrading the clutch and whether or not to install an LSD. Running out of time not to mention money.
Just dropped over $2000 in exchange for some snazzy transmission parts.
For the first time in months I have a free weekend but alas, parts won't be here till Monday :( These cars move a lot quicker when they're not in pieces.
Parts have begun to show up :)
Kitty thought there was a bird in here.
Maybe one of these magnets will work in my speedo ring.
Still need Dog tooth rings before we can proceed. Due here tomorrow so a busy weekend ahead. I wonder if I can get the transmission all back together before Monday.
Just caught back up with this. You're more brave than I am to dig into a transmission like that. Maybe necessity has something to do with it.
Brave? or MAD?!
It's really not that bad, honestly. A lot simpler than an engine, and cheaper too.
Removed the dog tooth rings from first and second with the Porsche took. Started to clean parts and reassemble the pinion shaft.
Hope to have the box back together tomorrow.
Got the new dogs pressed on at Auto Europe.
Beginning to look like a gearbox again.
What of those transmission parts cost $2k?
Someday I'm going to take apart a transmission and actually put it together again.
Nice work. I have a manual trans with a bad first gear (at least) laying around. This makes me want to tear into it.
mazdeuce wrote: What of those transmission parts cost $2k? Someday I'm going to take apart a transmission and actually put it together again.
Well, let's see:
clutch cable 1 $66.00
helper spring 1 $80.00
clutch kit 1 $682.00
Transmission fluid 3
1st gear brake band (37) 1 $31.50
1st gear dog teeth 1 $121.00
1st gear synchro ring (39) 1 $93.00
1st/2nd shift hub (41) 1 $212.00
1st/2nd shift sleeve (42) 1 $225.00
2nd gear brake band (37) 1 $38.00
2nd gear dog teeth 1 $112.00
2nd gear synchro ring (39) 1 $110.00
accelerator pivot bushing (13) 2 $5.00
Pinion shaft lock nut 1 $11.25
Transmission Gasket Set 1 $42.75
dog tooth ring tool 1 $102.00
Oil pressure sender 1 $83.00
OPS seal washer 2 $0.25
oil line 1 $35.00
Cotton wrote: Nice work. I have a manual trans with a bad first gear (at least) laying around. This makes me want to tear into it.
Do it. It's fun!
I think it's safe to say this is now a gear box again.
I even put new bushings in the throttle link rod thingy.
Now I just need the new clutch kit to arrive.
Bloody hell Paul, hats off too you. Will it be together for next weekend to be the zero car? I've still never got a ride in it. hint hint
Thanks mate. It's been an interesting but rather straightforward challenge.
I still need a clutch (arrives late Monday) and then have to put the box and engine back in the car and test it. The car is slated to run green light again which is way less tempting than zero. Not sure I'll be inspired to pull an all nighter but if I do you are certainly welcome to a ride.
How's the eye doing?
Adrian_Thompson wrote: How's the eye doing?
Much improved now thanks. Next time I'll aim for an ear.
teamilluminata wrote:Adrian_Thompson wrote: How's the eye doing?Much improved now thanks. Next time I'll aim for an ear.
No, aim higher, apparently nothing important inside up top.
Are you taking the van up? I'll be there around noon on Friday at Tallys.
Dang. When my miata trans went, I paid $100 for a new (used) one and an afternoon to swap. Porsches are def cool, but not in my budget :(
I picked up some Castrol transmission oil. Thought we'd give it a try.
and the new clutch arrived from Pelican.
No, we didn't forget to install the ring gear.
[IMG]
Offered it up to the engine which accepted it graciously.
And slapped it all back in the car.
I hope to drive it home tonight :)
Just want to say that I think a 911 in Detroit region rallycross is just about the coolest thing ever. It would be awesome to see it in action. One more reason I need to start coming to events.
Well thank you and yes, you do.
BlueInGreen44 wrote: Just want to say that I think a 911 in Detroit region rallycross is just about the coolest thing ever. It would be awesome to see it in action. One more reason I need to start coming to events.
And after I installed this new cutch spring I drove it home :)
Transmission seemed to work fine. Clutch still needs adjusting though. Blows my mind that I can single handedly put back the engine and transmission but it needs two people to adjust the clutch! The speedo doesn't work, probably because I forgot to connect the wires in the transmission tunnel; and the oil gauge is pegged at 5 despite a new sender. Should all be easy fixes. Think I'll drag it up to the Sno*Drift Rally tomorrow.
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