Anyone know Allied Floor Jack pump rod O-ring size?

[daves66nova]

I have an Allied floor jack and it has a leak at the pump rod. Anyone know what the size of the 0-ring is?

 

[JohnnyG]

No, but there's a lot more to it than just size. What is the material, buna or viton? Durometer rating "stiffness"? I'd take it apart, and order the proper O ring from McMaster Carr. Measuring and matching the size is the easy part, making sure it's correct material is more important.

 

[daves66nova]

I'm aware of all the specs, I gotta first find out size first, then the rest comes after.....

 

[Hall]

O-rings are pretty standardized. Can you remove it and take it to an auto parts store, Harbor Freight, etc ? They sell all different sizes of o-rings. Hydraulic oil isn't too aggressive so nitrile, viton, plain rubber, etc o-rings are fine.

 

[daves66nova]

It is very brittle. I saw a Youtube video where 1 guy had a similiar jack. He was changing the same o-ring. He showed the o-ring he ordered and it was a size 208. Im gonna order that one and hope that's it.

 

[Hall]

You don't have an auto parts store nearby ?

 

[daves66nova]

Yeah, but i wanna order a better than average one, not just a 5 pack for 3.00 kind.

 

[Hall]

You're overthinking this. "Better than average" ? Not sure how you'll determine that.... How much do you think an o-ring costs ?

 

[daves66nova]

You're overthinking this. "Better than average" ? Not sure how you'll determine that.... How much do you think an o-ring costs ?

By selecting a higher grade, e.g. Buna70 instead of 50, etc

 

[paulo57509]

Everything you wanted to know about o-rings and were foolish enough to ask BITOG about them.

Parker O-Ring Handbook:

ORD 5700 Parker_O-Ring_Handbook.pdf

1 file sent via WeTransfer, the simplest way to send your files around the world

we.tl