Well after building porch (i thought wife wanted a Porsche, but no porch it was) and utility room.
Then 6 weeks recuperating after back op.
I can get round to the ol' girl.
Bought a 3.9 rover lump but a no is manual. Gonna change to auto, what is best box? I have heard of zf hp4 22 is a poss. What torque convertor/ flex plate etc.
Has anyone got an idea of best box and does anyone have all bits I need laying around.
Cheers
Gary
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Small block 350 Chevy at last! Yep shoulda done it sooner.
Gotta have fun in my old ageeven if I am a grumpy ol git.
Well all I can say good job it was a Porch and Porsche. All the best with recuperating with your back, take it easy.
A long list of box's to tick on a auto conversion.
Get ALL the parts from a matching vehicle,stacked height in the converter housing is critical.
Never mix a rebuilt gearbox with a used converter,or even vise versa.
Bearing/bush will need to come out of the crank shaft.
Ensure torque converter spigot fits snug in the back of the crankshaft and lube it,this centralises the converter,not the flex plate.
Be sure location dowels are doing their job,and mating surfaces are flat not damaged inc any adaptors.
Check flex plate for cracks.
Steer clear of any gboxs from crashed cars with damaged converter housings.
Take care putting the converter in the box, lube the neck avoid damaging the lip seal.inspect the neck for burrs.
Never pull the gearbox up to the engine to close a gap using the bolts,if the converter is not engaged properly the pump may get damaged .
Once the assembly is in , the torque converter should slide up to the flex plate,but not too much as to disengage from the pump gears.
Always fit a trans cooler ,seperate, not built into the engine radiator.
Be sure that the shifter is adjusted correctly and not in-between gears.
Follow refill instructions, usually about a gallon of trans fluid to begin with before starting then quickly fill to cold level.
And most importantly always always fit a start inhibit switch.
Edit, forgot kick down cables, some transmissions don't have one , some don't need them connected,but for some they have to have them connected as they control the line pressure in the gearbox,and the gearbox will fail prematurely if not fitted and adjusted correctly.
Best just connect them up to remove any doubt,makes the car more driveable anyway.
But no start inhibit switch is dangerous, even if take care without one,the car will take off one day and you will not be able to stop it !!!
A lot there ,and I bet forgot something,if you know all this that's fine, guidance for others,or it may help you.
Last edited by Captain Scarlet; 07-02-24 at 10:42 AM.
Cheers cap'n and nope did not know all that.
Makes sense, now to find all the bits. Have not seen a complete setup on interwebby yet.
Seen a few parts, but need to be sure I can all matching parts. Did not know so many variations. Still learning.
G
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Small block 350 Chevy at last! Yep shoulda done it sooner.
Gotta have fun in my old age
Probably easier and overall possibly cheaper to get a transmission with a whole car around it!
Chris
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Bumper sticker - This is an historic vehicle and only has three speeds....... if you don't like this one you sure as hell won't like the others.
Finding a ZF4HP22 that's in good condition is the first bit, second is getting a range rover bellhousing from the same engine/gearbox combo that are all 4 wheel drive and use that set up for the torque convertor/spacers/adapters too the flex plate, ditch the spigot bearing in the crank if it was a manual and sort the kickdown to the carb set up. You could go ZF4HP24 but there electronic and you need too buy a stand alone module to change gear.
Plenty of good advice and knowledge here https://www.v8forum.co.uk/forum/
from memory the zf4hp22 in the range/land rovers was tilted on it's side a bit. if using a bellhousing from one of these but a box from a bmw/jag you'll need the 4x4's sump and filter/pickup.
neil.
Yes I had a Rover 4.6 in my rod about 20 years ago.
Used Range Rover bellhousing, BMW box, and the 4x4 sump since the thing was on a tilt as already mentioned.
(Sorry to break some of Capn Scarlets rules)
Good to have a 4 speed auto
I may live in East London, I may have a number plate that reads "Chopt",
but I do NOT use 6" wheel spacers!
Cheers guys gotta start searching out bits. Looks like it'll be a lot Webby looking to find them.
Will also check out the swap meet.
Gary
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Small block 350 Chevy at last! Yep shoulda done it sooner.
Gotta have fun in my old age
No worries Ian,swapping bell housings ,converters and adaptors can be done as long as meticulous checks are done eg stacked height and alignment.
In Gary's situation it makes more sense to get matching components
Reading Johns post reminds of the 'kick down' cable ,this in some transmissions controls the line pressure and should always be connected to remove any doubt.
I've gone back and edited the post.
Last edited by Captain Scarlet; 07-02-24 at 10:30 AM.
the problem there is the 4x4 box has no tailhousing and the tail shaft is different. there isn't to my knowledge a rover v8 zf4hp22 box that came 2wd. so using a jag or bmw box along with the convertor, flexplate (with anty spacers) and bellhousing from a range/land rover is the easiest option.Originally Posted by Captain Scarlet
No worries Ian,swapping bell housings ,converters and adaptors can be done as long as meticulous checks are done eg stacked height and alignment.
In Gary's situation it makes more sense to get matching components
Reading Johns post reminds of the 'kick down' cable ,this in some transmissions controls the line pressure and should always be connected to remove any doubt.
I've gone back and edited the post.
neil.
As Neil says hunt down a jaguar box if you can. Less thrashed than a bmwand easier too mate to a propshaft as for the kickdown as long as the ferrule is still pinched on the cable it's fine. Adjusting the length of the kickdown mechanism gives a firmer shift as well as when the kickdown happens
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Hi Niel ,dont know why i was quoted there,it was just the reminder on kickdown cables,and Ian's bellhousing swaps really.
But LDV used the ZF4hp22 trans in 3.5 V8 Police and ambulance orders,fairly sure they were 2wd.
https://en.wikipedia.org/wiki/LDV_Convoy
Your right Ian policevvans too but they have a massive sump on them
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Cheers guys.
Loadsa info but don't get me too confused.
Seen a jag box, also the full set of drive plate and bits. No torque convertor yet or range rover sump. Have seen bell housing.
Blimey hard tracing all the bits.
Still onwards and upwards.
Gary
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Small block 350 Chevy at last! Yep shoulda done it sooner.
Gotta have fun in my old age
If it's a jag box you wont need the range rover sump, i managed ok with mine as it was, just a bit awkward dipping the oil
Went the BMW route behind my 3.9
Bought a cheap gearbox and had it rebult with Range Rover internals and bellhousing
I cut n shut the sump pan
ian, it was the suggestion to get matched components. other than you reminding me of police ldv's the jag or bmw box coupled with rover front end bits really is the only (and easiest) choice. i wasn't having a dig mate
neil.
Good place to start is a wanted ad on here, you've already done that, see what pops up.
I may live in East London, I may have a number plate that reads "Chopt",
but I do NOT use 6" wheel spacers!
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