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#4779254 - 06/06/18 03:07 PM Oil pressure in a volvo penta 4.3gxi
monster1 Offline


Registered: 01/31/10
Posts: 114
Loc: ca
I'm running delo 15w-40 with fram ultra in my 4.3gxi engine. With the engine at idle and at running temp, I'm seeing my gauge at the quarter mark (20psi?) And while under load at higher rpms I'm seeing 40 psi. Is this normal? The engune has 200 hours on it so it's like new. Runs like a top. Doesn't burn oil. I'm just asking because I can't remember if the pressure gauge has fluctuated that much.

Thanks

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#4779270 - 06/06/18 03:19 PM Re: Oil pressure in a volvo penta 4.3gxi [Re: monster1]
CT8 Offline


Registered: 10/09/14
Posts: 10946
Loc: Idaho
That seems about right for a Chevrolet engine.My last boat had a big block Chevrolet and it was modified and had about 90 psi cold and 65 psi hot with 15w-40 oil
_________________________
"Don't let your preconceived notions get in the way of facts."
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#4779318 - 06/06/18 04:05 PM Re: Oil pressure in a volvo penta 4.3gxi [Re: monster1]
dlundblad Offline


Registered: 09/30/13
Posts: 10012
Loc: Indiana
Originally Posted By: monster1
I'm running delo 15w-40 with fram ultra in my 4.3gxi engine. With the engine at idle and at running temp, I'm seeing my gauge at the quarter mark (20psi?) And while under load at higher rpms I'm seeing 40 psi. Is this normal? The engune has 200 hours on it so it's like new. Runs like a top. Doesn't burn oil. I'm just asking because I can't remember if the pressure gauge has fluctuated that much.

Thanks


Can you hook an external gauge to it?

$20 at HF.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4779469 - 06/06/18 06:53 PM Re: Oil pressure in a volvo penta 4.3gxi [Re: monster1]
BrocLuno Offline


Registered: 09/06/15
Posts: 5512
Loc: Kalifornia Kollective
20 psi at idle is plenty. 10 psi per thousand rpm is the norm. so 40 psi at 4,500 is just fine.

If it was 20 psi hot at load and speed, I'd be a bit concerned ...

But it's not an issue with your numbers smile
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4781969 - 06/09/18 07:42 AM Re: Oil pressure in a volvo penta 4.3gxi [Re: monster1]
alarmguy Offline


Registered: 07/10/12
Posts: 2147
Loc: South Carolina
Sounds perfect
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