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Jul 11, 2006 14:04:05 GMT
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Righty - Saw this beast for sale at the weekend, 3.3 4 speed overdrive - Problem is the overdrive's broke. How rare are gearboxes for them, and if they're expensive/rare are there any cheap alternatives that would go in (Carlton box?). I'm SO SO SO tempted, to the point I've sorted the money for it, just kinda of wondering about the 'box problem. What say you dudes? Pimp or what
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Jul 11, 2006 19:17:46 GMT
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Wouldn't the overdrive be re-buildable? Can't be sure, but it is probably a laycock overdrive. Used in one form or another by loads of different manufacturers, so there must be specialists about who can repair it?
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Jul 11, 2006 22:25:07 GMT
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Broke as in doesn't engage, or the car isn't driveable at all?
If the o/d doesn't engage, it could easily be just a problem with the solenoid
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Pimp? Certainly not. Thats classy.
I'm not 100% sure that the 4 speed overdrive box was standard fit on the PB series. I have a feeling that its a later box out of a Ventora or PC series. No matter, just a thought and I could be wrong (it happens occasionally, but I usually kill any witnesses so word doesn't spread)
Anyway. The large imperial Vauxhall bellhousing pattern used here is not the same as the Opel derived one used on the CIH engines etc. You need a box off a straight 6 or slant 4. The only 5 speeder is the Getag box, not sure how much these go for now but they were hairy expensive 10 years ago and rare as anything. And not sure you'd want one on a six anyway.
The 4 speed box with OD is fairly rare. I may have one available later if you want to bag one as a spare.
The OD unit is the Laycock De Normanville Model J. A rebuilt exchange OD unit is about £500 from the last specialist I asked. Can't recall their name, they are in Sheffield.
The most common faults with the Laycock OD on the Vauxes are:
Unit will not engange at all: 1. wiring fault - bad earth, loose power connector 2. the inhibitor switch has failed meaning the unit will not engage 3. servo is completely shot
unit is slow to engage and or slips while doing so 1. servo is faulty 2. transmission oil level is low 3. transmission oil needs changing
if the inhibitor fails and someone just wired past it and then engages the OD from standstill in first (or worse yet - in reverse) then damage can occur to the unit internally.
So long as the car still drives in top OK with the OD off its not a bigggie to discover whats up and sort it all out.
Worst case is you swap in a used box and OD unit complete. While they are rare they are also pretty worthless so its more the case of finding one than finding the money to pay for it.
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1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1994 Ford Fiesta
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Jul 12, 2006 21:52:47 GMT
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actaully don't buy it, just send me his number LOL.
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1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1994 Ford Fiesta
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Thanks for the info I've kind of put off the idea now, I'd end up killing it! PM coming your way
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Last Edit: Jul 13, 2006 6:41:18 GMT by Dan 1641
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Really did look sweet though, no major rust that I could see - I didn't see/hear it running but apparently it was on tripple carbs and that exhaust was loud as hell. Number sent
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Jul 13, 2006 14:08:12 GMT
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I was kinda joking about the number. If you're going to get one get a good oen and they are rare now. Looks liek a good one to me.
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1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1994 Ford Fiesta
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Jul 18, 2006 22:10:06 GMT
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Damnit, just as I put myself off the idea, I get this info:
Does it sound like it could have been an electrical problem? Is there any way it could mechanically engage/disengage itself?
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Jul 18, 2006 22:26:57 GMT
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Reversing with the OD on will total the overdrive anyway, so it'll need replacing regardless
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Last Edit: Jul 18, 2006 22:27:10 GMT by Lewis
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I presume the guy means that he couldn't reverse because the OD was engaged...
If he has isolated it electircally and it still cuts in thats a mystery. I am now at the limits of my understanding of the overdrive unit. The far more common problem is that you flick the switch and nothing happens.
If the spare OD box can be had cheap thats good insurance. It could be a fauty servo but how its activating if it has had the electrics disconnected I dunno. Without seeing what he's done to the electrics to isolate it I dunno either.
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1941 Wolseley Not Rod - 1956 Humber Hawk - 1957 Daimler Conquest - 1966 Buick LeSabre - 1968 Plymouth Sport Fury - 1968 Ford Galaxie - 1969 Ford Country Squire - 1969 Mercury Marquis - 1970 Morris Minor - 1970 Buick Skylark - 1970 Ford Galaxie - 1971 Ford Galaxie - 1976 Continental Mark IV - 1976 Ford Capri - 1994 Ford Fiesta
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As far as I know, the Laycock J-type was used on a variety of British cars, including loads of Triumphs, so maybe a 2nd-hand overdrive unit may be an option? I think it was also used on some Bedford CF's as well, which may be easier to swap in. As an aside, the PB's front springs are apparently a straight swap for the Merc 190, so if you wanna slam it............
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1953 Minor (Long term project) PT Cruiser
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