P38 Range Rover ZF 4HP24 Gearbox swap Part 1
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- Part 1 of a 2 part video. I filmed some of the job I did on replacing the gearbox myself and spending $850. Other option is to have a mechanic do the job for $5000+.
First, I clean out the milky fluid from trans cooler and lines.
Then I remove original, and install a good used gearbox/transfer case/torque converter.
I leave vehicle on the ground, with rears up on railroad sleepers.
I used another vehicle to move the gearbox into position under left side of the P38.
I used an engine crane to lift bellhousing through engine bay.
I use a trolley jack, bottle jack, and blocks of wood. It is not easy.
Reason for box change:
I had installed a used leak-free trans cooler, as my original had a small leak. The new one had water in it. I did not flush it. After a few weeks driving, my friction plates were worn in the gearbox. The box failed. Vehicle wouldn't Drive unless high revving. Water had turned the fluid milky and wrecked it all.
Worn friction plates in box will need a rebuild. May do this myself soon. For now this was a complete success as it is driving perfectly again, allowing me time to work on the original box and still have the car on the road.
I swapped mine in my garage at home, it’s a lot easier if separate the transfer case from the trans. A lot of these transmissions fail to the transfer case chain skipping.
You are a braver man than me👍 love the ingenuity of how you got the box out and in again. Great to see a home mechanic without a lift or pit doing what needs to be done👍👍
Thanks. I guess I like to upload these videos to show you can get things done without the pro gear and space. It builds character that is for sure! The cold beer after a job like this hits that little bit better. Nothing better than pulling off a $5000 job for free.
Done that job twice on my dse, pulled a low mileage unit from a diner truck. Put the doner in and had no drive, I had broken the dogs off the pump installing it. Put it came again and second time was the charm, that is a big unit to wrestle into place while rolling around on the garage floor. Great video.
Hope my current p38 doesn’t need a new transmission lol
Thankyou for comment, good read. Glad you fixed it and got lucky getting it going the 2nd time. Too right! converter heavy as hell! laying on back holding it dead centre and jostling about for that elusive click/thud into position. For P38 I recommend new trans filter/ full fluid flush get rid of the metalic bits from years of use clean up what you can in the pan make sure magnet is there as preventative maintenance. I also regreased all the uni joints with a K29 flexigun and did both diff oils at the same time as this box job.
Nice work. What about the oil spillage on the ground...?
I think its just water on a horse riding ring/menage. The red scoria picks up the loose oil if any does spill and i later scoop it into a wheelbarrow with salt in it then dispose of the oil in old oil containers after the salt has dried the oil into clumps.
what about it??? some things just need to get done.
@@averagejoebitcoin nice..
U cant use petrol to flush d converter
Yes. It works well. Petrol dilutes the bad fluid and flushes it out. It then evaporates leaving no residue.
How It’s Work without gearbox ecu ?
Hello, Yes very good question. I used a 4hp24 which was exactly the same as mine, a 99+ model. I simply removed mine and plugged this one in with my old gearbox ecu. Im guessing it has simply picked up on whats going on immediately, and have not needed to reprogramme it. The box is definately going through all the gears. I thought i would have an issue there with possibility of it only using 3rd gear and in limp mode. But this did not happen. Simple plug and play.