Why is my pump leaking?

If it was run without water, run for a minute, then It was splashed with cold water..
yeah plunger could be cracked. and continuing running it could allow plunger to Blast..
Get seals right way, and inspect the plunger for cracks the minute you get the head off.

That pulsation (surging) you described.. can be just enough "hammering at a damaged plunger to cause it to blast.
If it blasts.. the $200 head could be trashed, probably the piston, and .. at least .. the brass retainers.
 
Yeah Pat, you definitely need a seal kit. Your inlet hose seems to be rather small, and 90s in to the pump. You might think about pulling the plug on the other side and setting it up for dual feed too. Take the 8 bolts out of the head, slide it off, check the pistons for cracks, put it back together if you need to use it, and call me for parts.
 
Help! Well I gone and done it now! I was taking the head off, and the allen bolts were taking a lot of muscle to break free. All came loose but one I stripped the dang inside of the Allen head. Can I drive a bolt extractor on here and get it off? BTW Russ I found part of the grease covered label and it is a TSF2021 and the allen bolts are the 8mm size. Also my dang valve caps were too tight to break loose. The socket kept wanting to jump off shallow hex head. How do I coax them off without messing up the brass?

heck I was trying to upload a pic of the head bolt but having trouble uploading...
 
Are you using a breaker bar with the socket? 6 point socket? Pipe wrench for the allen bolt? I'm thinking about replacing the bolts with stainless so they don't freeze up.
 
tomtucson said:
Are you using a breaker bar with the socket? 6 point socket? Pipe wrench for the allen bolt? I'm thinking about replacing the bolts with stainless so they don't freeze up.
Click to expand...
On the valve caps I was using a new 12 point socket with a breaker bar. Yeah I wonder if a 6 point might work better. On the Allen bolts I was using a hex key that is made to a socket that will fit a breaker bar or ratchet handle. Yeah those head bolts were a little rusty on the shank part. Should be a better quality bolt.
 
I was told to only use 6 point sockets for the caps or they can strip out and then if you get them off, you have to replace them.
 
Pat Norman said:
Can I drive a bolt extractor on here and get it off?
Click to expand...
You can do that or get a drill bit large enough to take the whole head off the bolt, slide the manifold off the pump, then use vise grips to remove what's left.
Pat Norman said:
How do I coax them off without messing up the brass?
Click to expand...
A six point socket is mandatory. An impact wrench would be a big help too.
 
A quick lesson for anyone following this thread. If you're dealing with socket head bolts, get a punch that will fit in the bottom of the socket and smack the bolt good. The aluminum and steel sitting together tend to "weld" themselves together, and the impact breaks that loose some. When turning the allen wrench do not use even steady pressure. Rear back and crank them hard and fast, like an impact wrench would do.
 
Russ Johnson said:
A quick lesson for anyone following this thread. If you're dealing with socket head bolts, get a punch that will fit in the bottom of the socket and smack the bolt good. The aluminum and steel sitting together tend to "weld" themselves together, and the impact breaks that loose some. When turning the allen wrench do not use even steady pressure. Rear back and crank them hard and fast, like an impact wrench would do.
Click to expand...

I remember u telling me this. I thought you was crazy
 
Thanks Russ! Got my packing this evening and put the head all back together. Gonna borrow a torque wrench tomorrow and tighten everything back up. Guys if you are having issues like this with your pump don't be afraid to fix it yourself. Its not that hard to replace packing, check or replace the check valves, nor should it be hard to replace the plungers but I was lucky and did not have to do that. There is a 4 part YouTube video Larry Hinderliter made showing how to rebuild the wet end of the pump. Of course with Larry it is very thorough and easy to understand.
 
Russ one thing I just wasn't positive about I wanted to ask you. My original packing had a cupped fiber type packing in the head first, with a white ridged washer that fit down in it, then a white flat washer on top of that. The new packing came in all 3 tied together with a flat brown fiber washer, a cupped rubber looking packing not the fiber type and a ridged white washer to fit down in the cupped washer. Since it came tied this way I put the flat fiber washer in first then the black then white. Not sure if maybe I was supposed to put the brown flat fiber washer in last or first? Does it really matter?
 
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