I would remove the hose in question. Take it to a hydraulics shop and ask if they can copy it.
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I would remove the hose in question. Take it to a hydraulics shop and ask if they can copy it.
Thanks Tim, as always you have just the information that I seem to need.
Hey so my pump is leaking and I'm gonna attempt to rebuild it but I don't have a toyota van people account and I signedup but account never got verified so I can't really view anything does anyone else have a write up on rebuilding it I searched and came up with nothing or maybe just take a screen shot from that website thanks !
Here's a PDF from the service manual that shows the process:
See attached pictures. is there a gasket or something that should be keeping this from leaking? not sure exactly how this fitting/coupling works but its leaking between that silver plate and the housing, appears to be specifically from that spot in the 3rd photo. recommendations/instructions on how to fix would be great :)
Attachment 4521
Attachment 4522
Attachment 4523
This is a common problem and with that said there's also few threads on the repairs....
Read this thread-
MOD EDIT — threads merged
And it'll take you on a journey of Tim's World of repairs and other links that are related.
Also remember to use the search feature at the top right and then you can add your comments to the existing thread or just read to obtain more knowledge...more knowledge...more knowledge!!!
Good luck and keep us posted:thmbup:
awesome, exactly what i was looking for! tim is a van wizard. I have a hard time finding things with the search function apparently...
i'll order a new seal and inspect for other leaks but hopefully its just this one. looks like a super easy fix!
thanks again! ill post to this thread again if i run into any other unique problems.
just wanted to update this and say it was the o-ring. pulled that off (it drained quite a bit more fluid than i expected so anyone reading this make sure you have a container of some sort to catch it all) and the o-ring was totally hardened and cracked in pieces when trying to take it off. new o-ring is in and it no more leaking:thmbup:
I have a leak coming from the bolt that leads to the pressure line (red arrow pointing to the leak in image). If I turn the steering wheel when stopped, I can see the PS fluid seep out of this joint. Do you know if I can fix this with the Edelmann kit? I read in another thread someone that fixed this problem but now I can't find it again :doh:. I'll keep looking.Quote:
Originally Posted by timsrv
Attachment 7235
There's an o-ring there that's supposed to seal that spot. It's likely hardened and flat/cracked. To get at it, simply unscrew that fitting, remove the old o-ring, and slide the new one onto the fitting and into the relieved area right behind the hex part. Just be careful when removing it though as there is a spring behind there. The spring shouldn't fly out or anything, but just be aware that it's there and don't let things fall out. If you're careful you can just put on the new o-ring, then screw it back in without upsetting the other parts in there. And as usual, when doing anything here, put plastic over your alternator before releasing the PS fluid/ATF. Tim
PS: The o-ring you need should be included in a PS pump repair kit, but if you wish to purchase separately it's Toyota part #90301-22001
Thanks, Tim! I already bought the Edelmann kit, so I'll plan to make the repairs ASAP, although $2.95 sounds a lot better than the $25 I spent! Oh well, I'll have the other o-rings and parts if she springs a leak somewhere else.
Will a lot of PS fluid come out when I open it up? (like, everything in the reservoir?) I haven't seen people talk about draining the fluid, so I guess this isn't something to worry about, but is it enough that I'll need to keep a drain pan underneath?
Also, I don't have a socket big enough to get these off and I'm afraid I'll strip them if I use my vise grips. I don't suppose you know the socket sizes offhand? It appears to be either 21/22 mm for the outer bolt and 26/27 mm for the inner one that sits against the pump body, but I'd rather only buy the sizes I need if possible. If not, I'll just spring and buy all four or invest in an actual pair of calipers to get a better measure.
It will leak some, but since it's the pressure side, it won't drain the reservoir. I'd expect it to lose a couple of ounces. Since the banjo bolt seals using copper crush washers, it will likely be pretty tight. Sorry, but I don't remember the exact size of the banjo bolt. Since the pressure fitting is sealed with an o-ring, these are usually not extremely tight. You will need to back it up though with an open-end wrench to prevent it from spinning while removing the banjo bolt. I remember this fitting size to be a 27 mm. Tim
I just gave it a try and am having some trouble. It's kind of a mess when I open up this port, so I'd rather not try too many times before I ask for guidance again! First off, it seems like quite a bit leaks out of the port. The first time I did pulled the bolt and the pressure hose I covered the alternator with plastic and soaked up the ATF with paper towels, and ended up needing a lot of them. Neither seal looked bad, really, but the one between the pressure fitting and the pump had a small abrasion on the outermost surface, so I figured that could be the problem. Maybe stupidly, I didn't change the smaller O-ring, because it looked fine. I didn't see a spring in this part, but looked in the FSM and it looked like there isn't one at this port, and the others all have one (if I was reading it correctly).
I put everything back in and torqued it to the FSMs recommendation, topped off the reservoir and gave it a try, but now it appears to be leaking more than before, from the same spot.
The second time I took it off, I covered the alt w plastic but also rigged up a system so that the ATF would be funneled into an old peanut butter jar that I rigged to be sitting between the blades of the radiator fan:thmbup:. The jar was pretty much filled to the top!
It looks like something maybe has happened to the metal around that recessed area and I'm wondering if that could be the issue? That the O-ring can't make a seal because the PS fluid can still leak around the ring to get out? I'm attaching a picture of the area without the O-ring, and one with it sitting in the recessed area:
Attachment 7246
Attachment 7247
Any ideas if this could cause it? Or am I looking in the wrong place? Any thoughts on fixes, or would I need a new pump?
FYI to the future PS pump tinkerers:
The banjo bolt is 22mm and like Tim said the pressure fitting is 27mm.
Sorry to hear that. FYI o-rings need smooth and even sealing surfaces or they will leak. Scratches, dents, debris, or anything else on or in that seal surface will prevent the o-ring from seating properly. FYI, the o-ring should be put on the fitting, then the fitting should be threaded into the bore. It's always a good idea to have some grease on it too. Grease will help hold it in place and also help it slip into it's groove. You might be able to clean up that area and/or cheat with some Teflon tape, but if I saw a mark like that on my pump (on an o-ring surface), I'd start looking for another pump :doh: :bdmd: :swear:.
reviving this thread so i can save my new alternator. my PS pump is leaking from the part labeled "Refer to Fig. 17-08" in the image below.. i think this might be the vacuum switching valve coronan was asking about?? will post a picture tomorrow when the sun's out, but wondering if the seal kit is all i need.
this forum is great btw, cant thank you guys enough.
Quote:
Originally Posted by timsrv
leaking from here:
https://i.imgur.com/ayVdTxL.jpg
the previous owner rigged up a pepsi can. now i know why.
Hey Shindagger - ever figure this out? I noticed mine appears to be leaking from the same spot. Just ordered a new seal kit and planned on removing and refurbishing my PS pump, but I'm curious if you found anything else to look for here.
Thanks!
i haven't messed with it yet. removing/installing the pump is kinda intimidating.. lemme know if the seal kit gets the job done, thanks.
Quote:
Originally Posted by timsrv
tried using the faucet o rings as well but couldn’t get it fit. Just barely too big
any pictures?Quote:
Originally Posted by Cadin
Hey guys my pump is leaking at the red line (picture taken from tim) im assuming thats the a gasket. Does anyone know the part number. I have a PS seal kit but it doesn't have a gasket. Good news is it only leaks when driving. Would you guys recommend a stopleak or cutting my own gasket? thanks! [ATTACH]11080
The large o-ring in the kit goes there. Tim posted a PDF of the pump rebuild from the service manual earlier in this thread that explains how to disassemble and rebuild if you need it.
Hi Tim,
Digging into this specific leak (flow control port).
I pulled the cap and there was no O-ring on it.
All the ones in the suggested Edelman kit seem too thick to fit in the groove there. I tried some others from a universal kit.
Did you use a different O-ring? The factory one- 96711-19014?
Also there seems to be 2 grooves in the cap- Im assuming you put it in the one closer to the top? Any advice to get it in there and installed back in the port? It would seem to be a tight fit.
Thanks in advance!
Quote:
Originally Posted by timsrv
The spring seat (what I call the cap) is marked on the above diagram as part #44343. It should only have one groove, but if for some reason there are 2, then choose the one that seems the most appropriate??? The o-ring is marked on that diagram as #44343A (96711-19014). As for what I did when repairing mine??? that was over 10 years ago so I don't have a crystal clear recollection. I assume I most likely stole that o-ring from an Edelmann repair kit, then ordered a replacement from Toyota to make my kit complete again. Tim
Hello, I’m looking for the top power steering pump top suction union port. Part 44337
Where in Arizona are you at? I should have a spare hanging around in the garage somewhere.
Hi! I’m located in North Phoenix. That would be great if you had one! Look forward to hearing back, names Tony.
PM sent!
Hello and good day all,
Determined there was a leak in our power steering pump because our alternator died. Got a replacement remanufactured by Cardone and it's leaking from the same spot right out of the box. Does anyone know if Maval has a better track record? They're more expensive but I know that does mean that two might be better.
Picture shows source of leak on new unit
Attachment 13241
If you are able to do the work, a seal kit is the better option. I've done both of mine in the last 10 or so years with no recurring leaks compared to all the complaints of leaking rebuilds for far more money.
What's the difficulty level like to rebuild the power steering pump? I'm reasonably handy, I've rebuilt mechanical seals for small hydronic circulators.
Me not very smart but for me the hardest part of the rebuild was getting the pump out of the van lol. I REFUSED to look at the manual and spent wayyy too long trying to remove the unit with the pulley still on :wall:. Once I gave up and referred to the book everything was easy.
Be mindful of the vane plates once you get it open, some of mine fell out when I cracked the pump open. They slide back in easy enough, but there's a certain orientation to them and if you don't get it put back together correctly you're gonna have a bad time.
Otherwise, just take your time and follow the manual and you'll be fine. I also strongly recommend a seal kit over a reman'd unit.
Good luck!
It's spelled out pretty good in the manual and if I remember correctly, it doesn't have to be fully disassembled to replace all the seals. It's a good idea to replace the bearing while your in there too.