Signs of failing HPOP - Diesel Forum

gjs1 · 03-08-2005, 12:22 PM

What are the signs that an HPOP might be on it's last legs.?

dmeis · 03-08-2005, 02:19 PM

My HPOP was droping pressure on the higher chip settings. A pressure gauge is a sure way to check.

Otherwise, SOTP will tell you the torque drops off in the upper RPMs. Also, the smoke diminishes in the upper RPMs. With a new HPOP mine now smokes WOT until I let off. Before I never saw smoke but only during initial acceleration.

kilapapipa · 03-08-2005, 02:26 PM

Interesting, what does a new HPOP run in $$??

RobertJohn · 03-08-2005, 03:54 PM

Yep i'm interested as well. How do you ck. the pressure, with what and what should the pressure be ??
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Vengeance · 03-08-2005, 03:57 PM

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Interesting, what does a new HPOP run in $$??

[/ QUOTE ]

Right around 450.00 or so. Check with Swamps I think he can get them cheaper.

dmeis · 03-09-2005, 10:05 PM

It cost me $508 plus the core.

Detroitnv871t · 03-09-2005, 10:37 PM

The best way may be to install a 3000 psi gauge in the head and moniter the pressure while under power