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Laycock Type A
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Marvin Gruber
Yoda
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Huh? You say you have a A type overdrive on an XKE 4 speed trans? I have to see a picture of that. Never heard of that done. Then putting it on a V12!
Marv
Marv
Marv,
I picked up a unit already tied to the tranny and on measuring dimensions on my 72 e-coupe,it looks like a fit to the driveshaft. Only difference is that the bell housing needs swapping since it has one that fits the 4.2 liter. These can not be used on the shorter coupe or convertibles, pre-v12.
I don't want to open anything if I can avoid it, thus trying to find how good it is. I found something about powering the tranny with a small electric motor and that may be a good enough, but don't want to miss something; yanking the engine from the car is bad enough to do once!
Max
I picked up a unit already tied to the tranny and on measuring dimensions on my 72 e-coupe,it looks like a fit to the driveshaft. Only difference is that the bell housing needs swapping since it has one that fits the 4.2 liter. These can not be used on the shorter coupe or convertibles, pre-v12.
I don't want to open anything if I can avoid it, thus trying to find how good it is. I found something about powering the tranny with a small electric motor and that may be a good enough, but don't want to miss something; yanking the engine from the car is bad enough to do once!
Max
Marvin Gruber
Yoda
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Some of the older Jag sedans (50's and 60's) had overdrive trans. Never heard of one being put into an E type (6 or 12 cyl. I've had a number of XKEs, not an expert by no means but don't think it will work properly. Go to the Jag forum on this website and ask the same question.
BTW- yes you can check the overdrive unit using a 1/2 drive drill motor to power it up. You will also need a gauge to check pressure.
Marv
BTW- yes you can check the overdrive unit using a 1/2 drive drill motor to power it up. You will also need a gauge to check pressure.
Marv
Tinkerman
Darth Vader
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I agree with Marv about the 1/2 inch drill. I used a heavy rubber hose for a connection. I slit the hose on the one end in four places slid it on to the tranny shaft clamped it down with a hose clamp also clamped it on the drill.
I have pictures but am having trouble getting them into the forum post. If you are interested I can post them to you. Send me a personal message with your email.
Cheers, Dick
I have pictures but am having trouble getting them into the forum post. If you are interested I can post them to you. Send me a personal message with your email.
Cheers, Dick
Don Elliott
Obi Wan
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HerronScott
Darth Vader
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Not sure how accurate this is but found it in a Jaguar forum post from a little over a year ago.
Jaguar forum post on overdrive
"Any long wheelbase E-type (i.e. any 2+2 of any series, plus the V12 OTS) will fit an XJ6 overdrive box with zero modification to the car. Absolutely zero. Same mounts, same drive shaft etc.
Many in Europe do this because we have lots of XJ6 overdrive gearboxes whereas you don't in the USA. An MOD box is also bout 15% of the price of a 5 speed conversion, so that's another reason...
The only change you need to do if you have a manual car already is swap the tranmission tops between your existing box and the overdrive box. This brings the gear lever out in the exact same place as the E-type. "
Scott
Jaguar forum post on overdrive
"Any long wheelbase E-type (i.e. any 2+2 of any series, plus the V12 OTS) will fit an XJ6 overdrive box with zero modification to the car. Absolutely zero. Same mounts, same drive shaft etc.
Many in Europe do this because we have lots of XJ6 overdrive gearboxes whereas you don't in the USA. An MOD box is also bout 15% of the price of a 5 speed conversion, so that's another reason...
The only change you need to do if you have a manual car already is swap the tranmission tops between your existing box and the overdrive box. This brings the gear lever out in the exact same place as the E-type. "
Scott
Don Elliott
Obi Wan
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TR3driver
Great Pumpkin - R.I.P
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IMO what you want is a 1/2" drill motor that turns at the lower speed (like 850 rpm). One of those 3/8 things with a (top) speed over 1000 rpm hasn't a hope. My old Milwaukee has no trouble turning the gearbox & OD, although you can hear the speed drop just a bit when the OD kicks in.Don Elliott said: