A little water leaking

[cjs966]

I have a small amount of water leaking from my TS 2021 between the head and the main body will replacing the low pressure seal o-rings solve that problem or is another seal or o-ring?

 

[Chris Tharpe]

Usually seals take care of this unless you have lots of hours on this pump and the heads washed out.

 

[Russ Johnson]

Could also be a cracked piston. If you're going to replace a seal or two, install the whole seal kit (#69) and the seal retainer o rings (90361600)

 

[cjs966]

I just put a new seal kit in back in February, I have put about 700 hrs on it since. But I will check the plungers for cracks when I put the new seal kit in.

 

[Sirocco Jerry]

Pump Inspection Check List

700 hours !??..
check for leaks in the supply line, partially plugged or "calcified" filter,
Whenever you take the head off the pump..inspect EVERYthing..
in n out play on the plungers, check for cracks in the plungers, seal retainers,
AND the head under the valve seats, etc..
put a copy of this in your tool boxes..

Pump Check List Date:
Oil Condition:
Oil Leaks:
Oil Level:

Bearing / Shaft Play:

Plunger Cracks:
Scratches:
Piston Play:
In & Out:
Up & Down:

Valves-
if you suck on them, do they bleed ?
Valve seat O-rings-
are they flattened or worn ?

Valve Caps:
are they chipped or cracked ?

Head issues-
are there cracks under the valve seat O-rings?

Brass Retainers-
Cracks?
Scratches?
Wear marks n scars (from piston slop)?

 

[Russ Johnson]

Make sure too that the face of the crankcase is smooth and not "dug out" where the seal retainer sits against it.

 

[cjs966]

I put the new seal kit in with out the o-rings. No more leaks but the crankcase does have some wear around where the seal retainer sits. Do you think this is the last rebuild for this pump? Does it becomes a paper weight? Everything else seems to be up to snuff.

 

[Russ Johnson]

Yeah, it probably won't last long. When the seals wear excessively, the whole stack loosens up and chatters back and forth in the bore. The brass slams into the aluminum 1450 times a minute like a little jackhammer. When it beats it up far enough, the seal retainer can move back far enough to expose the o ring and it leaks or sucks air.

IMO, a pump should be rebuilt every 1,000 hours whether it needs it or not.

 

[cjs966]

Thanks for the great info Russ. Much appreciated.

 

[Clear Shine]

Russ, what does it usually run rebuild a TS2021? Give us a idea of both a do-it-yourself kit price and also a price to have it shipped to you to rebuild

 

[Russ Johnson]

DIY:
Kit 1 valves - $38.16
Kit 69 seals - $60.00
90361600 o rings (3) @ $1.00 ea
47040409 pistons (3) @ $41.64 ea
Kit 6A piston hardware - $7.16
Plus shipping

In shop rebuild:
Estimate charge - $40.00 (applies to final bill if pump is fixed or replaced)
Kit 1 - $51.90
Kit 69 - $81.60
90361600 - $1.36
47040409 - $56.63
Kit 6A - $9.74
30ND oil - $5.95
1 hour labor - $65.00
Plus return shipping

Reference list prices:
Kit 1 - $61.06
Kit 69 - $96.00
90361600 - $1.60
47040409 - $66.62
Kit 6A - $11.46