ive spotted a 1300 marina auto box on ebay, how much work and effort would be involved in swapping over for my manual one? aside from the odvious tunnel atlerations. only my manual box has been on its last legs since ive had the car, and by all accounts for two years before that! (it jumps out of fourth everytime the revs change so you ahve to hold it in with your leg!)
also what would be a good price for these boxes?
autobox.
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Re: autobox.
You would need the torque converter too - and a different prop shaft. I've no doubt it can be done - but whether it's worth it is another matter entirely. Is your box Marina - or Minor??



Re: autobox.
My current box is a standard ribbed 1098 affair... but since it needs replacing anyway, and I love auto's, id see how much work is involved.
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- Minor Fan
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Re: autobox.
My wife has a convertible fitted with a BE 65 auto box from a Marina mated to a 1275 engine. This was already done before we got the car.
Major stuff:
You would need a flexplate instead of a flywheel on the engine & this may also mean a different backplate too.
As Roy says, a torque converter, if one is not included.
The engine is mounted lower than standard (new mounting towers needed) to allow the larger bellhousing to clear the steering rack...this means that a standard exhaust downpipe will not go down through the normal way...so, custom downpipe needed.
Minor mods:
A slight mod to the carb throttle spindle to connect to the kickdown cable needed
I'm not sure about a different propshaft, quite possibly.
The wiring for the starter motor needs to be routed via the inhibitor switch on the gearbox
These are the things that I can see need doing, but remember, I did not do it myself.
The lower engine sump etc can be a nuisance when it comes to high speed bumps!
As far as I am concerned, it is a great modification, particularly if your car is used in a lot of traffic. Drives extremely well.
As for "a good price", hard to say...a new box if you can get one, would be over £1k as would be a full rebuild on an old one by a specialist.
All depends on how keen & capable you are you are....I do know that some of the professional restorers are often asked about this, but struggle to get hold of the boxes.
regards,
Chris
Major stuff:
You would need a flexplate instead of a flywheel on the engine & this may also mean a different backplate too.
As Roy says, a torque converter, if one is not included.
The engine is mounted lower than standard (new mounting towers needed) to allow the larger bellhousing to clear the steering rack...this means that a standard exhaust downpipe will not go down through the normal way...so, custom downpipe needed.
Minor mods:
A slight mod to the carb throttle spindle to connect to the kickdown cable needed
I'm not sure about a different propshaft, quite possibly.
The wiring for the starter motor needs to be routed via the inhibitor switch on the gearbox
These are the things that I can see need doing, but remember, I did not do it myself.
The lower engine sump etc can be a nuisance when it comes to high speed bumps!
As far as I am concerned, it is a great modification, particularly if your car is used in a lot of traffic. Drives extremely well.
As for "a good price", hard to say...a new box if you can get one, would be over £1k as would be a full rebuild on an old one by a specialist.
All depends on how keen & capable you are you are....I do know that some of the professional restorers are often asked about this, but struggle to get hold of the boxes.
regards,
Chris
1958 4 door Morris Minor birch grey
1937 Austin Seven Ruby
1937 Austin Seven Ruby