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Author Topic: HPFP and VIS internals sitting in a box for years.  (Read 173 times)

Offline pandaman

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HPFP and VIS internals sitting in a box for years.
« on: September 12, 2021, 12:54:09 am »
I bought a brand new genuine HPFP and VIS internals all the way back in March 2019. Fitted the internals to the pump and it’s been sitting in a box waiting to be fitted until now.
Going over the instructions to refresh myself on the whole thing I’m starting to think, do I need to take it apart again and RE-lube it with fresh oil? Will it have “gunked up” and be unusable? Surely a standard HPFP can sit in storage for months or even years and be fitted absolutely fine. Will it just be pumped though with oil once I fit it? Taking it apart again isn’t too hard a task but I’m just wondering if it’s necessary.


Offline ROH ECHT

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Re: HPFP and VIS internals sitting in a box for years.
« Reply #1 on: September 14, 2021, 03:36:35 pm »
You might add a drop or two of oil to the piston where it goes into the retainer nut, which houses the two seals. Then just manually push the piston in a few times. As soon as it is started, it will have fuel on the inside and oil on the outside. But wouldn't hurt to disassemble it for a cleaning before installing it.
« Last Edit: September 15, 2021, 03:52:05 pm by ROH ECHT »
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