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Have now found a spanner for the nut and i am fabbing up a means to hold the assembly securely, so hopefully i will be able to press the shaft out this weekend. I will put up pictures of the syncros in due course for Greg's comments!
If Greg is reading this, what else should i replace regardless?
I want to replace the synch rings (1-3 only) and was just using Auto Atlanta's web site to look at the trans' inner workings. (will order them from Roger obviously)
I want to replace the synch rings (1-3 only) and was just using Auto Atlanta's web site to look at the trans' inner workings. (will order them from Roger obviously)
Hi.......Unfortunately no! life hit me and i have done nothing further. Currently rebuilding a house for one of my daughters. Hope to be back at it soon though
Bonjour
I have to change my 92830421112 synchro. I understand that 92830421130 are interchangeable and steal with carbon fiber aftermarket parts exist today at lower price than original synchro. It is supposed to have longer life isn't it?
Did someone tried this? could be a good alternative?
Raphaël
Bonjour
I have to change my 92830421112 synchro. I understand that 92830421130 are interchangeable and steal with carbon fiber aftermarket parts exist today at lower price than original synchro. It is supposed to have longer life isn't it?
Did someone tried this? could be a good alternative?
Raphaël
I've used quite a few of the steel/carbon fiber synchros. They work great.
Merci Greg for your feedback!
928 304 211 05 synchros steel/carbon fiber also exist! But I did not found any 928 304 211 12... So its great that 928 304 211 30 are interchangeable! And if these ones shift quicker and with the new material they last as much as the stock ones or maybe more, it is perfect!
Bonjour,
Gearbox disassembled... it remain the main shaft to unscrew... I'm waiting to find a correct solution to do it correctly (a deep 41mm socket)
I have received my syncro...
Steel version of 928 304 211 05 :
The syncro looks to have exactly the same dimensions than the former brass 928 304 211 05. The nub has the same width : half an inch.
And here, 928 304 211 30 syncro :
It has half number of teeth but I was rather worry about the width of the nub : only 0,4"...
So I tried all the syncros in place of the 5 gear syncro and they all fit... Even the 928 304 211 30 :
The syncro looks to fit... and to shift correctly... I hope it will be good.
But as all syncro looks to fit here on gear 5... they may all fit at other locations (1 to 4). So steel version of 928 304 211 05 looks to interchange with 928 304 211 12 also...
Greg, you confirm I'm right?
My original brass syncro on gear 5 looks new so I will let it in place. I plan to put the steel version of 928 304 211 05 on gear 4 and 928 304 211 30 syncro on gear 1 to 3. They (1 to 3) all looks worn out. I will also change the reverse syncro but for this one I will use the former 928 304 211 02.
If you have any comments or confirmation it will be greatly appreciated. Removing all this staff is not piece of cake so if I could avoid to do it twice!!!!
I know both transmissions......intimately. I've literally done dozens and dozens of each.
I'm trying to think which parts are identical....and not much comes to mind! The brass syncros in the 928 4th and 5th gears ('87 on) are the same as some of the brass syncros in the early G-50 boxes (928 304 211 05.)
Made me go and look, to refresh my memory!Edited!
The 928 304 211 23 will not work! The teeth on the outer ring are wider (for the wider engaging teeth on the 993 transmissions) and the 928 shifting hub will not go through these teeth. (they also have a different entry angle cut on them.) The 928 304 211 30 was the "high performance" replacement for the 928 304 211 23. It was found in the RS and RSR gearboxes, as a direct replacement for the standard "993" syncro (211 23). Worth noting, the 211 30 has a narrower "nub" that fits into the shifting hub, has the narrow teeth, and has less teeth on the outer edge, which makes it a quicker shifting syncro. The 928 304 211 30 will interchange with the 928 304 211 12, but because it is a "racing" syncro, it may not have as long a life.
Greg, on the G50 gearbox, does the slot on the shifting hub as wide as the one on our gearbox or is it smaller?
Raphaël
Bonjour,
Gearbox disassembled... it remain the main shaft to unscrew... I'm waiting to find a correct solution to do it correctly (a deep 41mm socket)
I have received my syncro...
Steel version of 928 304 211 05 :
The syncro looks to have exactly the same dimensions than the former brass 928 304 211 05. The nub has the same width : half an inch.
And here, 928 304 211 30 syncro :
It has half number of teeth but I was rather worry about the width of the nub : only 0,4"...
So I tried all the syncros in place of the 5 gear syncro and they all fit... Even the 928 304 211 30 :
The syncro looks to fit... and to shift correctly... I hope it will be good.
But as all syncro looks to fit here on gear 5... they may all fit at other locations (1 to 4). So steel version of 928 304 211 05 looks to interchange with 928 304 211 12 also...
Greg, you confirm I'm right?
My original brass syncro on gear 5 looks new so I will let it in place. I plan to put the steel version of 928 304 211 05 on gear 4 and 928 304 211 30 syncro on gear 1 to 3. They (1 to 3) all looks worn out. I will also change the reverse syncro but for this one I will use the former 928 304 211 02.
If you have any comments or confirmation it will be greatly appreciated. Removing all this staff is not piece of cake so if I could avoid to do it twice!!!!
Best Regards,
Raphaël
Why not use the ones that appear identical to the 211 05 and not mess with the 211 30 version?
Why not use the ones that appear identical to the 211 05 and not mess with the 211 30 version?
I'm hesitating...
The questions I have are :
- Raugh and Spiegel does not ship to France and I no longer travel to the US... It is a friend of me that hand carry them back to me... I have to find someone that could sell and ship them to me!
- in this thread we are discussing interchange parts for the 928 304 211 12 syncro so I tried the 211 30 as we discussed and then it is important for me to confirm or not, If the G50 gearbox has a shifter hub slot that is identical to our slot and if the 211 30 synchro works well in them, they may work here as designed also, isn't it?
- Greg, what syncros are you using when you rework your G28/12 gearbox? Do you sell Greg proof syncros? I would be glad to buy them to you. I have someone from Florida that travel to France and that I will meet in 13 October. An overnight shipment within the us could be done if you do not ship international...
- I haven't disassembled yet the main shaft so I can't verify that the cone for 1 to 3 gears are identical to the 4 and 5 gear...So I just expect they are the same...
I just try to understand what could work and what can't and then I will make a decision.I accept the risk to try something better than the 928 304 211 12. I just would like to minimize the risk I will take. So I ask to people that know...
Thank you for your help,
Raphaël
