Splitter hydraulic issue

[brenndatomu]

Placing a gauge inline would tell you if the cylinder is leaking, instead if using the parts cannon

True...but that pump wasn't that much more than the cost of a good gauge and proper high pressure fittings.
And at this point, leaking piston seals be the only other possibility.
I still like running a gauge though...most people would be surprised how little pressure it really takes to split the vast majority of wood

 

[Slimdusty]

How is the cylinder constructed?
Some are very easy to take apart
snap a pic of it if you want any help to take it apart. You got nothing to loose if you decide on replacing.
Placing a gauge inline would tell you if the cylinder is leaking, instead if using the parts cannon

I do have a guage on it, hence my pressure readings in my earlier posts. Somewhere along the way I went wrong in thinking it was the pump and not the cylinder. So what am I looking for to determine whether the pump or cylinder has failed?

 

[brenndatomu]

So what am I looking for to determine whether the pump or cylinder has failed?

You already have when you replaced the pump.

Prior, you could have taken the front line off (or at least loose) and see if oil is coming out of the front cylinder fitting when you have fully extended the cylinder...it should not, at least not in any volume.
If it does, then the piston seals are bypassing oil back to the return line.

 

[Slimdusty]

You already have when you replaced the pump.

Prior, you could have taken the front line off (or at least loose) and see if oil is coming out of the front cylinder fitting when you have fully extended the cylinder...it should not, at least not in any volume.
If it does, then the piston seals are bypassing oil back to the return line.

Yes, by replacing the pump I proved it to be the cylinder, I should have phrased my question differently, as in before purchasing the pump how should I have better diagnosed the issue. I thought the cylinder was holding pressure because with rod fully extended my pressure guage quickly shoots up to 1500 which is where my relief is set.

 

[brenndatomu]

Gotcha...

 

[salecker]

View attachment 347321View attachment 347322I do have a guage on it, hence my pressure readings in my earlier posts. Somewhere along the way I went wrong in thinking it was the pump and not the cylinder. So what am I looking for to determine whether the pump or cylinder has failed?

You already have the gauge, just relocate it to see if the ram seals are bypassing.

 

[Slimdusty]

Another question. With this cylinder that has no identification markings on it that I have found so far, how am I to purchase a rebuild kit? Do I take all the seals into a hydraulic shop and gets replacements from measuring the old seals?

 

[brenndatomu]

Do I take all the seals into a hydraulic shop and gets replacements from measuring the old seals?

Bingo

 

[Slimdusty]

Alright brenndatomu, salecker, whoever else. I have this nasty thing apart, have a look at the pics and tell me if you would rebuild it or scrap. TIA

 

[salecker]

Inside doesn't look so great
Looks like water is an issue
In your case i would probably get a different cylinder...
If it was me i would be getting o rings and backers as i am in the middle of nowhere. I am sure i can get the parts to rebuild it but to get a new cylinder it would be over a week wait and crazy expensive.
I would use a cylinder hone to clean up the inside and buy a few sets of o rings and backers if it was me.

Do you have a filter on your system? if not that would be a great addition.
And a water drain on the tank so you could drain the water out after its been sitting for a while.

 

[Jags]

Unless you address the condition of that cylinder wall you won't get a set of rings to last very long. Personally I would go new cylinder

 

[Slimdusty]

Inside doesn't look so great
Looks like water is an issue
In your case i would probably get a different cylinder...
If it was me i would be getting o rings and backers as i am in the middle of nowhere. I am sure i can get the parts to rebuild it but to get a new cylinder it would be over a week wait and crazy expensive.
I would use a cylinder hone to clean up the inside and buy a few sets of o rings and backers if it was me.

Do you have a filter on your system? if not that would be a great addition.
And a water drain on the tank so you could drain the water out after its been sitting for a while.

Thanks for the response. I think I would have more time into repairs and cleaning/polishing than what it’s worth. I do have a filter. I picked this cylinder up well used, it sat outside for who knows how long before I came along. That’s probably where the water and rust originated. I keep it stored inside.I have used it close to 5 years I think, now that I’ve seen the inside I am surprised it lasted this long!

 

[Slimdusty]

Unless you address the condition of that cylinder wall you won't get a set of rings to last very long. Personally I would go new cylinder

That’s my plan now, thanks.