Im stuck!

[larry03061976]

Kinda ool for hydralic shops. Seem to be getting fewer and fewer.

[gt383mag]

heres the other size o ring they show on there nut i think its just a wiper
IH-350429-R1 O-Ring, 5/8 x .813 x 3/32 | (Replaces hydraulic cylinder guide)
im guessing theres more in part number 24 than they are showing
24 is the part that the rod goes thru 29 is an oring to seal part 24 to the tube

[J-Mech]

Originally Posted by larry03061976

Tried that before, but the cylinder still leaks. Somebody told me the one that the rod runs through is an odd size?

Is it pitted? I highly doubt it's an odd size. It's too old to be complicated. I think your best bet is to find a hydraulic shop and ship it. You might be able to call them, but your going to need some sizes. Plus your going to have to find a good one who will work with you on something like this. The one I use actually builds cylinders. How committed are you to rebuilding this? Gonna take $$$ to make it right if it's too pitted to seal. (Not thousands, just hundreds. I'd estimate $200 or so to make a new cylinder.) If you go to cubs website or partstree.com the o-ring sizes are listed.

[larry03061976]

Suprisingly its not pitted at all. I replaced the 2 bigger o-rings but not the inner one. I couldnt find the size to replace it. Hoping that somebody had the size and I could hunt it down at a hardware store or something. Looked on sponsors websites but nobody lists it.

[larry03061976]

Thanks gt. Gonna hit the hardware stores and see what i come up with.

[J-Mech]

For the inside of a cylinder, the o-rings are usually a harder rubber. That may also be the reason it won't seal. That or you cut it on installation. May even be that the bore is egg shaped. Rebuilding a cylinder is similar to a piston in the bore of an engine. Just like the piston rings won't seal on an egg shaped cylinder, neither will an o-ring if it's wore enough.

[OffTime]

We rebuild cylinders all the time. Generally on most hydraulic cylinders that use O-rings, they use a durometer 70 throughout. They usually provide better service than the durometer 90 O-rings because they don't slice as quickly and are more tolerant to any foreign particles. They are also more forgiving to any variation of the bore. I have all the O-rings in my stock at my shop. To do the entire cylinder you will need only 3 O-rings, and I'm assuming the ports are pipe thread. If the ports use O-rings, let me know. In many cases you can reuse backups. I don't think this cylinder uses a wiper on the rod. I would be happy to ship these if you are interested. Just PM me and I'll fix you up. Thanks

[J-Mech]

4 o-rings.
3 X #29's, and 1 X #25

Yes, the hoses are pipe thread.

[OffTime]

OH. OK. I didn't realize the butt end isn't welded in. It is removable. I can handle that for you if you want.