late HPOP test device build

bismic said:

I sure can't help. but am interested for sure!

Maybe @Hydro ?

Click to expand...

Yes, definitely interested
I have been looking for a pump for a while to disassemble -- thank you @Hartwig for doing this
A little while back we had a poster that had one of these plugs pop out -- will do a search and see if I can find the post -- he had pictures

Those plugs look like the shaft drill port plugs used in some of the transmissions that I work with -- Basically just a large pop rivet
the center part is tapered with small annular grooves that act like a zip tie locking device -- also tapered to cause the outer ring part to swell in the bore

I do not have a picture of one of these port plugs to add to the knowledge -- but somewhere in my toolbox I have an unused plug, ...lost in the mess (will look tho)

I am thinking drive down on the center part to release the outer ring -- you would have to overcome the "lock rings" on the taper part of the plug
This thought is theoretical since I do not have first hand knowledge of this particular plug in your pictures

A "junk" pump would be good so it could cut apart at the plug, and dissected to see if the plug acts as I think
a "cut-a-way" pump would be good as a demonstration tool , but useless for testing -- maybe one day we can have both

The HPOP is in fact very simple in design. The 4 valves are "force-operated" (I'm sure my translator will fail me again on this word ) similar to the valves in the cylinder head of any workshop compressor with a piston unit.
Of course, these valve inserts are hardened, which has cost some teeth of my saw band.
The valve inserts themselves are only pressed in high strength, I could not discover any form-fitting connection. You can hit the valve inserts with a large hammer and raw force inside and remove them.





















Next week I will change the saw band and split the housing.

Hartwig if you keep having to cut things apart your going to need to build a water-jet machine.

As for a test bed I was thinking that you could use the bolt points then make a mounting pad
for the bump to bolt to. Then a hydraulic hose from some sort of oil reservoir and then a pressure
gauge with an over pressure relief valve. Then you just need to make an adaptor to drive the pump.
I would bet that your not going to need a large motor to drive the pump with the correct ratio of gearing.
I think some sort of filtering in the reservoir might be a good idea. And for controling the IPR you could
use a 12 volt PWM driver like the test tool that OTC makes. >> Ford 6.0L Diesel IPR Controller | Diesel Ford | OTC Tools
For overkill you could have a variable control for the IPR and a trace recorder for the pressure output.