Pathfinder Transmission Rebuild Page 2
Opening Transmission Case in my 1994 Nissan Pathfinder.
"Nissan FS5R30A 5 Speed (RWD) Manual Transmission Rebuild Kit, K100603" from
Seven bearings, some gaskets, seals.
- The good people at AC4X4 Forums hooked me up with a FACTORY SERVICE MANUAL . No way in hell I could have done this without the manual. I will note the page in the manual, when I think of it.
Got them from the good people at
Transmission Exchange Company.
Spencer sent the parts on time at the price agreed.
And when I didn't need them, he took them back less shipping + $10 restocking.
I was psyched.
Shop press. This one is Harbor Freight for about $100. Worked fine.
Bearing splitter / puller. I got one off Ebay and a second set from Harbor Freight. I needed a smaller bearing splitter, and needed it that day.
- "Nissan FS5R30A 5 Speed (RWD) Manual Transmission Rebuild Kit, K100603" from Drivetrain.com. Seven bearings, some gaskets, seals.
My brother washed brushed and scrubbed the transmission. Thank you, Issa.
Removed this Transmission support bracket.
I couldn't find a pic of this in the manual,
so I ended up checking these pictures to see how to put it back on.
Got it up on the bench.
Didn't use a winch. Did use a back brace.
This is the cover inside the bell housing. I must clean it before I open it.
As I understand it there is asbestos in here from the clutch disk.
I worked masked and kept the work wet with cleaner to reduce airborne particles.
As a reminder to myself, the three bolts on the lower left are different.
They go all the way through the case and need sealant on reassembly so they won't leak.
The Shift fork and Throw out bearing come off easily.
I should make a clutch writeup and link it in here.
But it is very similar to changing the
After everything is clean, I start disassembly.
This is the check ball plug, spring, and ball bearing. They push on the gear selector and provide tension to select gears properly. I don't fully understand it.
See Factory Service Manual, Manual Transmission Section, page 37, #1 (MT-37 1)
Storing parts in all those plastic bags my wife won't throw away.
Lots of labels and notes and pictures to help me put it back together.
Removed the cover from this shifter part here.
Drove out the two retaining pins on the shifter bar.
One pin inside the other. Short drift / punch,
so drove the pins out the last mm with whatever was handy, like this nail and bolt.
Removed the speedometer sensor gear.
The case will not come apart with this in there
unless you hit it really hard and break it. Ahem.
These pictures show which bolts have the black coated clips on them.
These hold the wires that attach to the transmission.
They are not in the manual.
I am glad I took these pictures so I would know where to put them.
I was using the manual, so I reassembled the case without putting these onto the bolts.
Then I had to take them off, reseal the case, and put them back with the washer coated clips that time.
Plus, nice Chucks, right?
Removed the case bolts that hold the two parts together.
No turning back now. Transmission case open.
Back in the bell housing, the transmission front cover plate must come off.
The bottom three screws go all the way through and need sealant during reinstall.
This small snapring and spacer on the shift control come off.
Used the big snapring pliers to get this input shaft bearing snapring off.
It came off easily.
Thank you for these snapring pliers, dad.
- Now I can easily separate the center plate from the front transmission case.
- Tapped lightly with a plastic hammer just like the service manual says.
- Tapped a little harder.
- Beat the hell out of it with a 16 ounce framing hammer and a block of wood.
- Got drunk.
- Asked for help.
- Was reminded of god's gift to mechanics, WD-40.
- Sprayed everything with WD-40.
- Bathed in WD-40.
- Drank WD-40.
- I think I have cancer, but the case came apart.
The alignment pin had a burr on it. It was binding as the other side of the plate was coming off easily. I put these bolts in to try to keep the plate aligned to the bell housing so it wouldn't bind on the alignment pin while I took it off.
There are the transmission gears and Shift control components.
Out of the case and ready for some wrenchin'.
I put some thin scrap wood onto the vice before I clamped the aluminum adapter plate.
Used hammer and punch to remove striking lever (left side of picture) and shift dogs.
I really enjoy using these punches.
Took off the shift dogs.
Note to self: This is how the shift interlock /striking lever goes together.
MT-38 1-4, MT-39 5-6
At this point of disassembly, gears are exposed and ready for gear end play measurement. That is the stage where I find out why I couldn't get it into first gear or reverse.
- Then I finished my beer.
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Think: Cars are expensive, powerful, and heavy. Before I start work, I face the possibility that I will destroy my vehicle, my own life, and innocent pedestrians' lives. If anyone messes with a 4000 lb machine capable of 100 mph, these are real possibilities. If I get in over my head, I call a professional mechanic. The information on this website is provided only for entertainment purposes, and it is not intended as advice on how to service a vehicle. For all you know I made this up. Don`t believe everything you read on the internet.
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Last modified: 11/25/2013