OM617 Oil pressure, any issues going higher than stock?
OM617 Oil pressure, any issues going higher than stock?
Stock pressure on the relief valve is 7 bar, or ~ 100PSI.
Are there any issues with raising the max, or is the max ever indeed seen by the engine?
I know for some high-output g@sser engines people shim the regulator, but not sure on these old beasts.
I'll be able to arbitrarily set any pressure I want when I remake the relief valve housing, so figured I'd ask.
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
I'm redoing the pickup on my oil pump, and have what might be a stupid question.
Stock pressure on the relief valve is 7 bar, or ~ 100PSI.
Are there any issues with raising the max, or is the max ever indeed seen by the engine?
I know for some high-output g@sser engines people shim the regulator, but not sure on these old beasts.
I'll be able to arbitrarily set any pressure I want when I remake the relief valve housing, so figured I'd ask.
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
04-13-2011, 04:00 PM #2Well being as though the gauge always shows 50+lbs I have no clue.... I have always wanted to install a full sweep gauge just out of curiosity...
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Ed
yankneck696
04-13-2011, 04:17 PM #4I could see blowing out seals in the turbo & other engine parts. Except for all out race engines (with the specially designed clearances) higher volume or pressure could actually rob horsepower.
Ed
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
Captain America
04-13-2011, 05:00 PM #5It wouldn't hurt the turbo seals since there is a orifice in-line already...
1982 300D Turbo ... 3,6xxlbs, No fan, No AC, Hood Stack, No ALDA, No rear bumper and stuffed front, A/W Intercooled, Injectors by Greezer and HUGE Pre-Chambers with help from OM616 & Simpler=Better, Fuel Cranked up, 60 Trim Compressor wheel, EGT, EMP, Boost 50" Rigid Radius bar on roof Aux tank for a total of 48 Gal Of Diesel! Odyssey PC-1750 Battery in trunk, 27"x8.5"/R14 Maxxis BigHorn Mud Terrains, In June '14 issue of Off Road Mag
AX15 Jeep Trans swap in progress....
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
It's in case I'm of when I recreate the cracking face of the relief valve in the new rear pump housing, and also for personal curiosity.
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
.
Gota love Mercedes Diesels!
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DeliveryValve
04-13-2011, 07:18 PM #7I personally wouldn't go higher then 7 bar. Gaskets/seals, the plastic IP line and even oil pump is stressed. As long your getting at least 3 bar or 43 PSI @3000 rpm your good.
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Gota love Mercedes Diesels!
.
I guess what I'm trying to get at is, would a variation of, say, 5PSI be an issue?
I'm going to do my best to recreate the relief housing dimensions to within a thousandth, but I could still be off.
I'll have to measure the travel of the piston from full-closed to the cracking surface, and run the numbers to find out how the spring rate and preload factor into it.
Oy vey, the things I get myself into!
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
But does the engine ever hit 7 bar in normal use?
I guess what I'm trying to get at is, would a variation of, say, 5PSI be an issue?
I'm going to do my best to recreate the relief housing dimensions to within a thousandth, but I could still be off.
I'll have to measure the travel of the piston from full-closed to the cracking surface, and run the numbers to find out how the spring rate and preload factor into it.
Oy vey, the things I get myself into!
1990 Power Ram 50 V6 SOHC 24V 6g72
I can be wrong, don't take everything I say as verbatim, please fact-check first.
My posts are my personal opinions and thoughts, unless otherwise noted.
(04-13-2011, 08:11 PM)300D50 But does the engine ever hit 7 bar in normal use?
I guess what I'm trying to get at is, would a variation of, say, 5PSI be an issue?
...
Yes it does. It will hit 7 bar past 3,000 rpms. I think 5psi variance is not an issue. Any more then it might.
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Gota love Mercedes Diesels!
.
DeliveryValve
04-13-2011, 08:31 PM #9(04-13-2011, 08:11 PM)300D50 But does the engine ever hit 7 bar in normal use?
I guess what I'm trying to get at is, would a variation of, say, 5PSI be an issue?
...
Yes it does. It will hit 7 bar past 3,000 rpms. I think 5psi variance is not an issue. Any more then it might.
.
Gota love Mercedes Diesels!
.
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