CAT 310 wearing out quickly

[MDrost1]

Folks,
I have a 310 pump that seems to wear out the valve o rings every month or so. It happens to be o rings above or below the same cylinder every time. Either the top valve or the bottom valve o ring. Is this telling me something? Today the HP was down to about 700psi and the o ring was eaten up pretty bad. Thanks!

 

[Jim L.]

Sounds like a washout to me. Read the 11 pages of the first thread in this section.

http://www.autocareforum.com/showthread.php?3375-Washed-out-310-manifolds-With-pictures

 

[BBE]

Check out vilco supply. Talk to Joe.

 

[washnvac]

Sounds like wash out. Send it to Kleen-Rite for a re-sleeving. For $200 it comes back better than new.

 

[2Biz]

I just got 2 heads back from Vilco. Looks like they did a good job, but haven't put one in service yet to test. I sent them all new seals, o'rings, and valves that they installed for pressure testing.

 

[slash007]

I've used Vilco and the pumps run like new. $149 for all 6 heads.

 

[2Biz]

Actually $149 isn't bad for what they do. All 6 valve seats bored and sleeved with Stainless Steel inserts. They have a video on their website that shows how to put in new seals. You can get an idea of how the whole process is done.

 

[MDrost1]

Thanks! I contacted Vilco. I appreciate it!

 

[ICEMAN]

send them to kleen rite , they actually press fit the sleeves into the head, permanent fix. I have done 3535, 310 and 5cp with them. Not sure how vilco does it but i thought putting the seals back in had to be done a certain way with vilco

 

[washnvac]

Agree with iceman. I sent one to vilco, and could never get it right. The KR units are pressed in, and have had no issues with any. And I actually have stopped sending the 5cp2120w in for warranty to cat. I just send it to KR to get fixed right- and done.

 

[MEP001]

I have concerns about Vilco's repair because they use an o-ring under the insert to make the seal, and if that washes out it's not repairable again. DynaJet does a permanent repair with a pressed in sleeve. They may be who Kleen-Rite uses unless they have their own process.