Is it possible to weld a new or different bellhousing on a transmission?
And if so how?
It would make a great video... pretty colors and lots fire and thick smoke. But don't try it inside and don't add water. I think the case is magnisium. Just make an adapter plate.
I keep finding these broken g50's....so in these cases an adapter is not even possible.
So I take it magnesium is not possible to weld?
It is possible to weld magnesium. Powdered magnesium or magnesium shavings burn quite nicely, but solid magnesium is relatively inflammable.
Welding magnesium is difficult because it has a low melting point and distorts easily (sort of like aluminum, but more so), but with the proper filler material, the right equipment, and loads of experience it can be done. Check around, maybe you can find someone willing to give it a go.
right on....so it sounds like it is possible? How critical is the alignment issue. Is it fairly straight forward to get it aligned or a big pain in the a**?
QUOTE (riverman @ Apr 12 2005, 07:12 PM) |
It is possible to weld magnesium. Powdered magnesium or magnesium shavings burn quite nicely, but solid magnesium is relatively inflammable. Welding magnesium is difficult because it has a low melting point and distorts easily (sort of like aluminum, but more so), but with the proper filler material, the right equipment, and loads of experience it can be done. Check around, maybe you can find someone willing to give it a go. |
G50s use the same bolt pattern as all the older trannies, so making an adapter or changing the bell housing is unnecessary. The Cap'n
QUOTE (86motoman @ Apr 12 2005, 07:57 PM) |
I keep finding these broken g50's....so in these cases an adapter is not even possible. So I take it magnesium is not possible to weld? |
This particular tranny the bellhousing is gone...like busted off. I am concerned where to weld a new bellhousing to the old transmission.
Also, I would like to know the pros and cons of doing this. For example, would I be able to use a chevy flywheel and starter? Would I then not be able to find a clutch to fit the chevy flywheel and porsche transaxle spline? So many questions so little time.
I called a machine shop in town. He batted around the idea of making something to bolt a chevy bellhousing to the transaxle. Just an idea.
As far as the price goes...they are between $700 and $1100 after I get it shipped. I figure by the time I get it fixed I would have somewhere between $1500 and $2000. With some looking you can find used g50's for $1500 - $2500;therefore, I think the deciding factors would be the advantages and disadvantages of having a chevy bellhousing on the tranny. Do you have any thoughts?
Good question.
I personally beleive you could do a bolt on bellhousing much like they do with the aftermarket 2 speed powerglides for Mopar/Ford applications.
The issue with the G-50: Running it mid-engine is a pain in the arse. It has to be run upside down. Now you have compounded your issues.
Check into a company called TCI. I'm trying to find the place that cast the different bolt on bellhousings. Starts with a A..
B
This is EXACTLY what I'm talking about:
This one is from ATI. Simple bolt on solution.
If drag racers can launch 2500lb 1000hp door slammers with this... you can build a street car with it.
B
QUOTE (Brad Roberts @ Apr 13 2005, 11:48 AM) |
I personally beleive you could do a bolt on bellhousing much like they do with the aftermarket 2 speed powerglides for Mopar/Ford applications. |
Here is a pic of the tranny.
Attached image(s)
Here is a shorter one.....
Attached image(s)
Basically the pic I showed will need a flat surface to mate to. Have the case machine flat.
I *think* that the lower pic from Bigkat is a "BOP" adapter for the stock Chevy glide bellhousing. "BOP" Buick/Olds/Pontiac. The pic I showed bolts to the pump face on the glide.
B
I have thought about this setup in the past:
Use a stock Chevy flywheel and clutch setup with a custom clutch disc splined for the G50 input shaft.
A conversion company long gone called "Jaidecar" did this with 915's in the past. They had a small internal/external splined adapter that mated the stock Chevy disc to the 915 splines. Maybe they couldnt get the disc close enough to the input shaft. I dont recall. I have only seen two over my 17 year history with the 914's.
It can be done. Time/Money/Patience.
Oh.. FYI: I modified your pic. Another reason why I dislike 100megapixel camera's.. ha ha
B
The adapter I posted was for a SBC to a flathead ford V8 transmission adapter(still available) I looked into these trying to make a plate like the old Jaide setup.
Attached thumbnail(s)
The G-50 case is aluminum
I went to buy a G-50 once, the seller said the bell housing had some damage.. it looked quite like the one pictured. I couldnt believe the a-hole couldnt be up front and tell me it was basically trash. OUCH, it takes some hit to break a tranny like that.
QUOTE (Brad Roberts @ Apr 13 2005, 12:45 PM) |
It can be done. Time/Money/Patience. |
I would really be concerned that the tranny itself has been damaged. It takes a lot of force to destroy a bell housing that bad. You need to pull the tranny apart and carefully inspect everything. You will have to take it apart to machine it or weld it anyways.
Anyways having a bolt on belhousing would be fabulous. We could then run all kinds of parts.
Alignment is critical. Tilton actually sells a tool to do this.
Attached image(s)
That is cool!
QUOTE |
Alignment is critical. Tilton actually sells a tool to do this. |
The Tilton setup is cool.. however.. you must run their little tiny 5.5 clutch package with it. Most of those bellhousings are designed for IMCA modified cars with dry sump systems (so they can get the engine really low in the chassis)
B
QUOTE (86motoman @ Apr 13 2005, 12:03 PM) |
Here is a pic of the tranny. |
Could the Boxter S 6 speed tranny modify the same way.......
QUOTE (914Timo @ Apr 14 2005, 05:11 AM) |
Could the Boxter S 6 speed tranny modify the same way....... |
This one would be pretty easy to mount a bellhousing on, if it wasn't too long afterwards.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=34208&item=4543261561&rd=1
(Not that I would pay that much for it)
QUOTE |
The Tilton setup is cool.. however.. you must run their little tiny 5.5 clutch package with it. Most of those bellhousings are designed for IMCA modified cars with dry sump systems (so they can get the engine really low in the chassis) |
Rich,
They Ultima builders use upside-down G-50's. Ultima sells a vent relocation kit for something like $200. They say that's all it takes.
-Ben
QUOTE (rick 918-S @ Apr 14 2005, 05:20 AM) |
That means you could run a full size chevy flywheel and clutch! No conversion parts. |
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