Recent content by ReEngineer

Hi all, I purchased a couple of Hein Werner WS jacks some time ago and rebuilt them. The rebuild went fine, no issues. The jacks dont leak and they go up and down just fine. Here's the issue. Unless I put a plier to the release valve knob, I cant get these things to hold loads up and they slowly...

You're probably right. I'm in no rush to rebuild, i may just wait to be able to get the kit through you once you're back up and running. I'll report back on the raising comparison with the freshly rebuilt WS as soon as i get a chance.

Thanks Hiball! I appreciate the input. Given that it does raise, hold a load, and hasn't started leaking; what would be some signs that this jack needs to be rebuilt?

That's a great point. I was beginning to think that under no load the larger (presumably low pressure pump) or both pumps kicked in creating the large lift, then with a load only the smaller pump (identified as high pressure in parts breakdown) took over creating the high pressure and less lift...

Thanks! I went through many Hein Werner Model M threads before posting this up. I contemplated responding to the very thread you sent me but was weary of reviving an old thread. Any advice would be greatly appreciated.

Hi all, I recently picked up a Hein Werner Model M, a 2 Ton long reach service jack. Given the age it's in decent shape and i'm trying to figure out whether or not to replace all of the seals. It was low on oil so i topped it off. Havent observed any leaks overnight but since it needed oil...

Thanks PureLeaf

I did check the jack and it had 0 leaks from yesterday to today.

As it turns out, i cant post images or links...

Here's a picture of the Jack in case it helps.

Hi all, I recently picked up a Hein Werner Model M, a 2 Ton long reach service jack. Given the age it's in decent shape and i'm trying to figure out whether or not to replace all of the seals. It was low on oil so i topped it off. Havent observed any leaks but since it needed oil, i'm sure...