Thank you Paulsomlo for the quick reply! Just to make sure I understand correctly:
"What you're looking at, as far as the overload, is the top of a rubber plug. Under that, is the actual overload mechanism. The adjustment screw for the overload takes a special splined driver. The slotted head plug you've removed is just to close things up - it doesn't affect functionality. I would bother messing with the overload." That's what I thought, thank you for confirming. Just to make sure, you meant "I would not bother messing with the overload", correct?
Yes, I meant "would not".
"The only part of the release valve you need to be concerned with, is the tip of the needle valve and the seat. What you're showing in the picture, is inconsequential. There should be a metal thrust washer and a rubber washer in the assembly in picture 5 - I'd say one is missing from the looks of it. The assembly in pic 5 should just come apart - there's nothing threaded to anything." Are the two washer's you are referring to the same as #23 & #24 on the diagram (please see screenshot below)? That's precisely the seal (rubber washer) that I'm trying to replace, the reason I would like to separate the parts. I believe seal seats inside of the parts assembled shown on Pic # 5 which should be parts 22, 25 and 26 in the diagram. They are somehow "stuck" together, I thought they would be threaded one to another (22 and 26). I'll keep trying to separate them, any advice on how to do so will be greatly appreciated.
Yes, 23 and 24. I misspoke - 22 and 26 are threaded together, of course, trapping 23, 24, and 25. I suppose you could wrap a piece of leather around 26, secure it in a vise and put a wrench on 22, or find something square that will fit the hole on 26.
"Sure, hang on to that leather cup - you never know when you'll happen on another WS that someone's throwing away, and just needs a new cup."
As far as you can tell, you do agree with me that it looks in excellent condition?
Thank you again for all your help, I sincerely appreciate it!
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Before I read your response, I tried to find something square to fit #26 but couldn't find anything. I tried using the needle valve but it is too tight and I don't want to risk damaging it. I'll try the leather/vise next, thank you again for the help!
What did Elroy use to get the strange adjusting screw out of the pump body??
Thank you Hiball! I will follow your advise. Knowing me, I would have destroyed the threads no matter what I wrap them on to protect it. Thanks for the "next tip" as well, I will do as suggested and report back asap (next weekend hopefully). By the way, did you have a chance to look at the picture of the leather U-Cup? Does it look too good to be the original? Worth using again? I ask because I have 2 other HW jacks that I will rebuild and most of the seals from this current jack look in really good shape so I may reuse some of them. The seals being in such good shape makes me wonder what was causing the jack to get stuck. I read some of your posts and if I understood correctly two of the main reasons for that are air in the system and damage/obstruction in the inner ram/cylinder. Hopefully the previous owner rebuild the jack and didn't purge it properly (unlikely) or allowed air to get in. I checked the inner ram and cylinder and they both looked nice and smooth. The jack did have a leak, maybe that's where the air got into the system...
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How about inserting a washer (not too thick) at the bottom with a modified square orifice in the middle as the one in the picture below?
Will the added space prevent the valve needle to close or otherwise function properly?
Any other ideas?
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I don’t see why it wouldn’t work, unless by chance the thread distance is too short. The release will have to clamp the washer in place for it work properly, maybe check with HPS in my signature for a replacement?
How about JB Weld or something like that to secure the washer in place? Will hydraulic oil dissolve the bond?
I didn't think HPS would carry Hein-Werner WS parts, I thought these jacks were obsolete. I will look them up online or give them a call. Thank you again Steven.
How come my HS model WS that I am restoring did not come with the packing and washer showing in your picture when you dismantle the release valve box?
do i have to install one? Could that the source of the leak on the fly wheel area?
How come my HS model WS that I am restoring did not come with the packing and washer showing in your picture when you dismantle the release valve box?
do i have to install one? Could that the source of the leak on the fly wheel area?
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I saw this kit for $35.0 at Ebay. Are these what I am missing? I have to buy the whole kit?
Thanks Hiball. I really appreciate your help. If you can find one, or similar that will work, i am willing to buy it. I know a regular flat washer will not do, right?
Thanks for the info. I will let you know once I got the kit. I really don't have a clue how they look like. If not compatible, I will just return the kit.No Sir, A flat washer would not work. The replacement would need to be approximately the same thickness to compress the seal upon reinstallation. It’s possible that you might be able to get by with stacking them, but i would worry about how they would hold up over time.
I definitely dismantled the release stem valve. I was able to unscrew the big nut from the stop nut, pull out the release valve, the stud and the big hex nut, but I did not find any packing and washer inside, Also, I left the stop still screwed on the unit since I could reinstall everything back without unscrewing it. I saw from the post of Alterego that he had a hard time unscrewing it.
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I saw this kit for $35.0 at Ebay. Are these what I am missing? I have to buy the whole kit?
I’m not sure what that second piece is, I’ve never known a seal kit to include the thrust washer. It appears to be another piece of packing. It’s possible you might be able to fabricate a thrust washer. I don’t know the dimensions off the top of my head but It’s about as thick as the packing if memory serves. I’ll see what I have, or you can make some calls and do some price checking.
Hi Alterego. Gosh, you must be a mind reader!! I was just thinking about you, and wishing you could read my dilemma. If you can give me the dimension, OD, ID, thickness, that will help me alot to look around for one. The seller of the kit assured me they were the packing and washer. I even sent him the picture of the WS detail parts encircled posted by you #368.Hi OnieH,
Actually, for me it was the other way around, I was having a really hard time getting where you are now. It was really hard to disassemble the big hex nut and stud. If you got that far I think it would be really easy to remove and clean the rest... not that I think it is indispensable but if you got that far...
I think I got a similar kit from eBay. If I remember correctly, Hiball is correct, that second piece is not the thrust washer for the release mechanism but a (second?) washer for the top nut/reservoir tube. I think the thrust washer for the release is considerable thicker than those washers.
Let me know if you need measurements, I have the release valve system laying around somewhere.
Would love to see pictures of your jack once you are done!
The seller of the kit assured me they were the packing and washer. I even sent him the picture of the WS detail parts encircled posted by you #368.
You don't have any plan to sell it, right? If you do, I am here. Thanks.
Hi Alterego. Gosh, you must be a mind reader!! I was just thinking about you, and wishing you could read my dilemma. If you can give me the dimension, OD, ID, thickness, that will help me alot to look around for one. The seller of the kit assured me they were the packing and washer. I even sent him the picture of the WS detail parts encircled posted by you #368.
You don't have any plan to sell it, right? If you do, I am here. Thanks.
I looked at the listing on ebay that corresponds to the picture of the kit you posted - it's for an "OS" model, not a WS. And the alleged thrust washer in that picture is not nearly thick enough, not to mention appearing to have some curvature to it.
The "WS" kit from that same seller does not include the thrust washer (I can't imagine it would).