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Chilliezax

Fuel Pressure Regulator HH380

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Chilliezax

All,

I'm having a tough time finding the FPR on the HH380. I've been told it is 'next' to the fuel pump???? I can't seem to find it... Any help would be much appreciated and pics! Thanks.

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grandude

What color is your fuel pump? Black or silver?

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Chilliezax

It is Silver.

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grandude

The regulator should be on an aluminum block right by the fuel pump. Towards the rear of the engine. It is a little larger diameter than a quarter and has a nipple on it that looks like it should have a small hose hooked up to it. Sometimes they do have a small rubber cap over the nipple. The is a 7/16 bolt holding it in place by a retainer ring. You'll likely have to pry it off with a flat tip screw driver. I take it you having fuel pressure issues. are you reading high or low?

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Chilliezax

Ahhh! Thanks. Yes, it is reading 70psi and I'm burning a lot of fuel. Already the coil and ICM have been replaced and I was still having the surging issue. My marina checked the fuel pressure but aren't comfortable working on Indmar engines.

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grandude

You should be reading about 50 psi . Change the regulator and that should bring it under control.

Actually I forget if it's 50 or 60 but definitely not over 60. Maybe someone has the specs at hand and will chime in.

Edited by grandude

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Chilliezax

Wow, pretty straight forward. (once you know exactly what to look for...) Now water test! Thank you for the help!

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grandude

Hopefully your plugs aren't too fouled from the rich fuel. If runs decent you might run it WOT for a about a minute to burn off the plugs. If still running a little crappy at idle you may need to clean or replace spark plugs.

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SmoothWaterMan

60 is the right number. Just replaced one that was at 95.

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Chilliezax

Thank you for the idea about the spark plugs.

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