Did you get the new pump? Will the parts work for ya?
Leaking OEM 40-series PS pump.....
- Thread starter CruiserStuff
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- Thread starter
- #22
Dan - sent you a PM, but yes, I think the parts will work for me.....I just swapped the nose pieces. I picked up a couple cans of breakeclean this morning and I'm gonna work on replacing the seals tonight. I watched you remove the shaft seal on my nose while you were in town and will do the same on this one. What's the best way to install the new one so I don't screw it up? Also, is there a specific torque setting I should use on the bolts that hold the two sections of the pump together? They were on there pretty good when I took the pump apart....
I mailed your pump back this morning - let me know how much $ you want. Also, noticed that the bushing at the bottom of the pump looks identical to the one at the top, but is in GREAT condition. You think it would be worth it to pull it out and see about getting a batch machined? Lemme know......
I mailed your pump back this morning - let me know how much $ you want. Also, noticed that the bushing at the bottom of the pump looks identical to the one at the top, but is in GREAT condition. You think it would be worth it to pull it out and see about getting a batch machined? Lemme know......
- Thread starter
- #23
Okay, here's the update.....and I have a couple questions I'm hoping you guys can help me with:
Here's the seal kit from CDan:
It was all pretty straight forward for the most part. I bought a couple cans of Brakeclean and sprayed the heck out of everything to get the gritty residue that was in the pump completely off of all the parts. Then, I put the new o-rings on (I soaked them in hot water until I was ready to install them to soften them up).
Question: Where do B, C, and D go? I didn't take apart the bottom half of the pump, so I do realize that E goes in the lower housing. D'Animal told me I'd have one small one left over, but that leaves me with a couple question marks. Any help?
Got the old shaft seal out and installed the new one with a "hi-tech" SST
suggested by D'Animal (a large socket with the rachet side on top of the seal. I put a small extension through the socket (reversed from normal use) and tapped on that with a hammer until it was fully seated. Worked like a charm...
This is the nose piece that I got from D'Animal which has a bushing that is in better shape than mine, but still worn.....I'm still interested in getting a batch of new ones made. It appears that the bushing in the bottom of the pump is identical, but doesn't wear out nearly as quickly (mine looks brand new). If someone has a trashed pump and wants to pull that out, we could see about getting some machined.
Then it was time to re-install the wipers with all the springs. This is how D'Animal showed me:
1) Take the back half of the wiper and stack the four springs in it:
2) Put the wiper top on, making sure the springs are in the four holes on the back of the wiper top to make a "spring sandwich" (this takes some patience).
3) With the "cutout" portion of the wiper on the right side, compress the "sandwich" and hook the bottom into one of the slots on the pump housing. Then compress the springs until top fits into the slot.
4) While maintaining the pressure on the "sandwich," push it down into the slot. Look down in there with a flashlight to make sure the springs are all seated correctly.
Then, I reinstalled the guts of the high-pressure port with the new o-rings and snap ring provided in the kit. Question: do the holes in this portion need to align a certain way in the cylinder?
Question: Does the new "S Port Seat" (A) get pressed-in somehow (and how would you recommend doing it without damaging it) or does it seat when you thread in the high-pressure line?
Last question.....is there a torque setting for the six housing bolts that I should use?
Other than that, I think it's ready to go.......once I get those few questions answered, I should be able to get the pump back on the truck and see how it works....
Here's the seal kit from CDan:
It was all pretty straight forward for the most part. I bought a couple cans of Brakeclean and sprayed the heck out of everything to get the gritty residue that was in the pump completely off of all the parts. Then, I put the new o-rings on (I soaked them in hot water until I was ready to install them to soften them up).
Question: Where do B, C, and D go? I didn't take apart the bottom half of the pump, so I do realize that E goes in the lower housing. D'Animal told me I'd have one small one left over, but that leaves me with a couple question marks. Any help?
Got the old shaft seal out and installed the new one with a "hi-tech" SST
suggested by D'Animal (a large socket with the rachet side on top of the seal. I put a small extension through the socket (reversed from normal use) and tapped on that with a hammer until it was fully seated. Worked like a charm...
This is the nose piece that I got from D'Animal which has a bushing that is in better shape than mine, but still worn.....I'm still interested in getting a batch of new ones made. It appears that the bushing in the bottom of the pump is identical, but doesn't wear out nearly as quickly (mine looks brand new). If someone has a trashed pump and wants to pull that out, we could see about getting some machined.
Then it was time to re-install the wipers with all the springs. This is how D'Animal showed me:
1) Take the back half of the wiper and stack the four springs in it:
2) Put the wiper top on, making sure the springs are in the four holes on the back of the wiper top to make a "spring sandwich" (this takes some patience).
3) With the "cutout" portion of the wiper on the right side, compress the "sandwich" and hook the bottom into one of the slots on the pump housing. Then compress the springs until top fits into the slot.
4) While maintaining the pressure on the "sandwich," push it down into the slot. Look down in there with a flashlight to make sure the springs are all seated correctly.
Then, I reinstalled the guts of the high-pressure port with the new o-rings and snap ring provided in the kit. Question: do the holes in this portion need to align a certain way in the cylinder?
Question: Does the new "S Port Seat" (A) get pressed-in somehow (and how would you recommend doing it without damaging it) or does it seat when you thread in the high-pressure line?
Last question.....is there a torque setting for the six housing bolts that I should use?
Other than that, I think it's ready to go.......once I get those few questions answered, I should be able to get the pump back on the truck and see how it works....
- Thread starter
- #24
Well, no one replied to my questions 
, so I decided to "wing it." Put the s-port seat in and seated it using the same method I used to seat the shaft seal. Torqued the housing bolts and saved the "extra" o-rings in case I discover later that they were important 
Mounted the pump, ran the lines, filled the reservoir and bled the system with both front tires off the ground. No leaks, no whining or squealing....good to go!
Ran around the block and the steering is smooth and responsive (and will be even better when I rebuild the center arm and replace the TRE's). My wife took it for a drive and said it felt like a different truck entirely (great, now she'll probably want to drive it more
). Great mod.....shouldn't have waited so long to do it.
Thanks to everyone for the input (especially D'Animal). I'd still like to source some new bushings since this one won't last forever......
Noticed my nice new black paint on the frame around the gear box is wrinkled and peeling....brake fluid dripping down from between the MC and the booster.....on to the next project (replacing both with the units from the '92 FJ80 I'm parting out).
Cheers......
, so I decided to "wing it." Put the s-port seat in and seated it using the same method I used to seat the shaft seal. Torqued the housing bolts and saved the "extra" o-rings in case I discover later that they were important Mounted the pump, ran the lines, filled the reservoir and bled the system with both front tires off the ground. No leaks, no whining or squealing....good to go!
Ran around the block and the steering is smooth and responsive (and will be even better when I rebuild the center arm and replace the TRE's). My wife took it for a drive and said it felt like a different truck entirely (great, now she'll probably want to drive it more
). Great mod.....shouldn't have waited so long to do it. Thanks to everyone for the input (especially D'Animal). I'd still like to source some new bushings since this one won't last forever......
Noticed my nice new black paint on the frame around the gear box is wrinkled and peeling....brake fluid dripping down from between the MC and the booster.....on to the next project (replacing both with the units from the '92 FJ80 I'm parting out).
Cheers......
- Thread starter
- #25
21 months later and I'm back to square one with the shaft seal failing miserably and fluid spraying everywhere. I'm sure the majority of this problem has to do with "wobble" at the front shaft due to wear in the bushing.
Has anyone discovered a source for this bushing? I'd like to replace it when/if I go back in and replace the front shaft seal again. Without a new bushing, I think I'll be doing this again in another couple years....
Second option is the NAPA rebuilt pump......does anyone have experience with one of these rebuilds? What kind of warranty do they carry?
Last option would be to buy a brand new pump from CDAN.
What are your thoughts? What route would you recommend?
Has anyone discovered a source for this bushing? I'd like to replace it when/if I go back in and replace the front shaft seal again. Without a new bushing, I think I'll be doing this again in another couple years....
Second option is the NAPA rebuilt pump......does anyone have experience with one of these rebuilds? What kind of warranty do they carry?
Last option would be to buy a brand new pump from CDAN.
What are your thoughts? What route would you recommend?
I've had great results with Napa rebuilt parts for 30+ years, but if I have the money I buy a new Toyota part.
rover67
SILVER Star
Man....
I just went through about 3 pumps at NAPA before I found one that worked. I started with a used one I got here on mud. I took it apart and put new seals in it with a NAPA seal kit. I re-plated the reservoir too. Stuck it in and it blew the seal and spun the bushing in a matter of minutes. I took it to NAPA and handed it to them as a core and went home with a nice shiny pump. I figured "s***, it's got a warranty.."
Threw it on and I had no power steering and no leaks.
Took it apart to have a look and the rotor to housing clearance was really big. The bushing looked like a new one that was honed in place. threw it back together and took it back, and got another one under warranty.
Put the second NAPA pump on. It groaned loud and didn't make good pressure either. I took it apart and it looked good.. it had a new bushing in it also... I started to think it was my steering box so I took it all apart and it checked out OK. Thought maybe it was the filter in the reservoir, but it was clean.
took it back to NAPA and got a third pump under warranty. Stuck it in and it has been working OK for about 6 or 8 months now. It doesn't make great pressure and it makes some noise, but it does work and it doesn't leak.
I am STILL tempted to go get a new OEM one. I would have spent the same if I had gone and done that in the first place...
That's my experience anyways...
I just went through about 3 pumps at NAPA before I found one that worked. I started with a used one I got here on mud. I took it apart and put new seals in it with a NAPA seal kit. I re-plated the reservoir too. Stuck it in and it blew the seal and spun the bushing in a matter of minutes. I took it to NAPA and handed it to them as a core and went home with a nice shiny pump. I figured "s***, it's got a warranty.."
Threw it on and I had no power steering and no leaks.
Took it apart to have a look and the rotor to housing clearance was really big. The bushing looked like a new one that was honed in place. threw it back together and took it back, and got another one under warranty.
Put the second NAPA pump on. It groaned loud and didn't make good pressure either. I took it apart and it looked good.. it had a new bushing in it also... I started to think it was my steering box so I took it all apart and it checked out OK. Thought maybe it was the filter in the reservoir, but it was clean.
took it back to NAPA and got a third pump under warranty. Stuck it in and it has been working OK for about 6 or 8 months now. It doesn't make great pressure and it makes some noise, but it does work and it doesn't leak.
I am STILL tempted to go get a new OEM one. I would have spent the same if I had gone and done that in the first place...
That's my experience anyways...
Sounds like you're using power steering fluid instead of ATF.
rover67
SILVER Star
nope. always have been using ATF.
I like NAPA for a ton of stuff and always go there. The pumps I have gotten from them for my 40 have not been great though.
Maybe the Denver area had a bunch of bad ones, i dunno.
I like NAPA for a ton of stuff and always go there. The pumps I have gotten from them for my 40 have not been great though.
Maybe the Denver area had a bunch of bad ones, i dunno.
- Thread starter
- #30
Fast Eddy - Yes, I always like to get new OEM parts when I can.....hard to beat even though the price can bring the pucker. 
rover67 - Sounds like you had a heckuva time. The nearest Napa is an hour away from me, so I definitely don't want to have to make as many trips there and back as you did. How much was the pump and core charge? How long is the warranty on them? Thanks!
Anyone else have a good/bad experience with the Napa rebuilds?
rover67 - Sounds like you had a heckuva time. The nearest Napa is an hour away from me, so I definitely don't want to have to make as many trips there and back as you did. How much was the pump and core charge? How long is the warranty on them? Thanks!
Anyone else have a good/bad experience with the Napa rebuilds?
rover67
SILVER Star
Not sure how much it was... I think about 100 bucks?
The core was pretty high too..
They have a pretty decent warranty I think. I want to say it was a lifetime warranty.
The core was pretty high too..
They have a pretty decent warranty I think. I want to say it was a lifetime warranty.
How about replacing the plane bearings with this units
- Thread starter
- #33
Hmmmm....they look good. Any personal experience with them?
These are hi quality bearings (made by IKO) with superior load speed and wear capability, however they pose 2 issues: 1. the housing requires modification as their OD is larger than the plain bearings OD. There is enough material to do so but it requires some fancy machining. The front housing requires a lathe and is straight forward enough but the rear housing would require a mill with a boring bar. 2. The pump shafts that are available today are worn out and are smaller than the minimum shaft diameter specified by the bearing manufacturer.
I have ordered them and may attempt this anyway because I think it will be better than any plain bearing solution I can come up with. Toyota should have used them in the first place.
I have ordered them and may attempt this anyway because I think it will be better than any plain bearing solution I can come up with. Toyota should have used them in the first place.
- Thread starter
- #35
Definitely keep me posted......thanks for the info!
Bumping this old thread. Any word on availability of this bushing that seems to fail on these pumps?
Exploring this option as CityRacer is out of stock on his reproduction pumps
FYI, I will have a few units available in a week.
This is among the most difficult pumps to get right. It takes twice as long to manufacture as other Toyota pumps. The probability of a rebuild failing is going to be quite high.
