Tear in rubber o-ring in my pressure washer

[Sump]

It's not strictly an 0Ring but it's a complicatedish part where I can't get a direct replacement.

What are my options here, could I use a gasket sealent? The ones you use on cars to fix this as it's causing my pressure washer to lose pressure!

[Peter T]

Where is the rubber o ring sited?

[Sump]

In the pump.

[AdeTuono]

Inlet or outlet? Static or dynamic? Rotating or reciprocating? Does it see pressure? If so, how much? Does the original have back-up rings?

[jeff m2]

That sounds like a check valve.

In line with the piston??

Get a small box of mixed air con O rings the green ones, you may find one that matches.

Edited by jeff m2 on Saturday 24th March 21:10

[Sump]

It's like a rubber boot and does look like a check valve seal. It's got a metal circle thing tucked inside aswell..

Here is a pic..

[Bonefish Blues]

Have a word with espares - very helpful guys, IME.

[Sump]

Am I not better off just putting a new pump on? Or a second hand one from this era?

[jeff m2]

I don't think you need a new pump.
HP pumps last a long time, very little wear as there is no combustion.
But I would advise changing all three check valves, cos if one has gone etc etc.

Search for a check valve kit, that would be the valves and o rings,

What make is the pump?

[Sump]

It just says KEW and the plastic cover over it says KEW 3002kb.

It's quite an old pressure washer so finding this check valve isn't easy.

[Henry-F]

I think Kew is now part of Nilfisk-ALTO. Contact them and see if they can put you in touch with a service components company.

It might also be worth investigating the cost of a new pressure washer. They are often so cheap it doesn't make sense paying fortunes for replacement parts although I do appreciate the frustration of knowing only a small part has failed.

Henry

[Sump]

Its a honda based washer.

[netherfield]

http://www.kew-alto-nilfisk.co.uk/