OD gearbox removal

[beamdream]

Is it possible to remove an overdrive gearbox from underneath, without removing the engine ?

 

[Tom H]

Yes, I have done it. But it's close. Probably need to loosen the engine mounts. Good idea to disconnect the both radiator hoses. Put a block of 1" or so wood between the rear of the valve cover and the firewall. I think I needed to push the engine forward about an inch to get the tailshaft to clear.

Tom

 

[pruyter]

I have done it by only using the block of wood as Tom mentions above, no loosening of the engine mounts were needed and no disconnecting of the radiator hoses either. So pushing the engine forwards was also not needed.

Regards,

Peter

 

[Tim R]

You can take either engine only or gearbox /O.D. only out of an Alpine but personally I find it much easier to take the whole thing out as one long lump. Then I do whatever is required, mate everything up on the driveway then drop it back in. I find this much easier than trying to line everything up when I'm lying on my back under the car!

Tim R

 

[DanR]

Yes, it can be done either way.

Those engine and tranny pictures you posted Raymond are very nice!

I really like the first PIC, it as all of the proper tools and equipment to safely hoist the engine and Transmission into and out of the Alpine.

DO NOT RECOMMEND utilizing rope as pictured for such an undertaking!

 

[todd reid]

I've never before seen anything like the boot/cover on the clutch linage in the first picture.

 

[Jimjordan2]

Pictures make me want to pull my engine and transmission just to clean it up. Mine feels dirty now

 

[Tim R]

Todd, As far as I am aware that is a standard part. All of our engines have it (it is in the bottom picture too). It sits over the slave cylinder and seals to the bell housing. I don't think that it is really necessary though! The car will run perfectly fine without it and getting it on and off can be a pain.

Tim R

 

[DanR]

Tim, I noticed that you do not have a starter dust shield on any of the bellhousing pictured?

Here are a few PIC's of the Shields I have been making for the Alpines.

I have them available to sell for $25 and you use your Spring.

 

[DanR]

Here is a PIC with the Starter Dust Shield in place

 

[65beam]

I've never before seen anything like the boot/cover on the clutch linage in the first picture.

The clutch linkage cover is available from Sunbeam Specialties.

 

[beamdream]

Yes, I have done it. But it's close. Probably need to loosen the engine mounts. Good idea to disconnect the both radiator hoses. Put a block of 1" or so wood between the rear of the valve cover and the firewall. I think I needed to push the engine forward about an inch to get the tailshaft to clear.

Tom

OK thanks, whilst I have done a few non OD trans remove/refits with the engine in situ, it just appears to me that the extra length of the OD appears to go way back into the subframe x member, so removing the front engine mounts would be a must to get enough forward travel; hence also the radiator out would be a must.

It then probably makes more sense, having gone this far, to take the whole lot out as one.

 

[husky drvr]

OK thanks, whilst I have done a few non OD trans remove/refits with the engine in situ, it just appears to me that the extra length of the OD appears to go way back into the subframe x member, so removing the front engine mounts would be a must to get enough forward travel; hence also the radiator out would be a must.

It then probably makes more sense, having gone this far, to take the whole lot out as one.

beamdream,

WSM 124 section E page 20

SI and SII have a different design for the "X" member which wont allow the gearbox and OD to be removed separately from the engine.

All three units need to be removed together.

Hope this helps.

 

[pruyter]

And again: I have done this several times without any problems: no need to push the engine forwards just a block of wood and that's all. To be honest I used a professional ramp as used in garages, so I did not need to lay on my back under the car.

Regards,

Peter

 

[Tom H]

Peter, are you saying you have doe this with an OD transmission AND on an early Series ? .

I have installed an OD tranny on a SV, and the tailsfhaft barely cleared after pushing the engine forward about a 1/2 inch. Done without removing the hoses, or loosening the mounts, but I felt at the time it would have been better to have removed the hoses.

Tom

 

[pruyter]

Hi Tom,

I did this with an Alpine series IV and with a gearbox/overdrive from an Alpine series V which I installed in the Alpine of my brother. I did this about a year ago. Before that (many years ago) I installed in the same way a gearbox/overdrive of a series I in his Alpine and again with the same procedure. To be clear: at the backside the engine was hanging down quite a lot with a piece of wood between the valve cover and the firewall.
So I really don't understand why others could not accomplish this in the same way...

Regards,

Peter

 

[todd reid]

Perhaps because the English never made two cars exactly alike? Oops! Did I say that out loud?

 

[beamdream]

Rest assured folks the WSM reference is correct.

There is no way on this Series 11 that the gearbox will come out on its own, the rear housing goes way too deep into the floor x member for it to drop down and be angled out; hence it had to come out with the engine.

 

[pruyter]

Then there must be a difference between the floor of a series II and a series IV, because I have done this job about 5 or 6 times whithout moving the engine at all.

Regards,

Peter

 

[beamdream]

Then there must be a difference between the floor of a series II and a series IV, because I have done this job about 5 or 6 times whithout moving the engine at all.

Regards,

Peter

Did you read the post by husky drvr and WSM reference ?