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Oil pressure

Willie B

Willie B

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Jan 2, 2016
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4,063
Location
Mount Tabor VT
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Electrician
My former fire truck is equipped with a Caterpillar 3208 T.
I get it most of you are making that hissing sound. It ain't a first choice engine. It is low hour, pumped 615 hours, likely travelled 10,000 miles.
It runs at near 100PSIG on the highway, at idle, it's over 50. Is this a concern? I do wonder if it should be somehow regulated. Will it blow a hose?
 
Truck Shop

Truck Shop

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WWW.
3208's can really vary on oil pressure, spec's range anywhere from 35 idle to 100 full tilt. I worked on one that would peg the gauge at full
throttle 100 and idled at 25. I wouldn't worry.
 
Willie B

Willie B

Senior Member
Joined
Jan 2, 2016
Messages
4,063
Location
Mount Tabor VT
Occupation
Electrician
Truck Shop said:
3208's can really vary on oil pressure, spec's range anywhere from 35 idle to 100 full tilt. I worked on one that would peg the gauge at full
throttle 100 and idled at 25. I wouldn't worry.
Click to expand...
Thank you. I was a bit concerned something was blocking flow.
 
John C.

John C.

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I had four of them at one place I worked. I had plenty of other problems with the trucks and worrying about oil pressure was never even mentioned by the drivers. All had at least 75 PSI at high idle.
 
O

Old Doug

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Oct 16, 2013
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4,545
Location
Mo
Willie B said:
My former fire truck is equipped with a Caterpillar 3208 T.
I get it most of you are making that hissing sound. It ain't a first choice engine. It is low hour, pumped 615 hours, likely travelled 10,000 miles.?
Click to expand...
I dont understand but like the 3208 alot of engines did there job and did it well but even the the best engines have haters. I sleep better when the oil presser gauge dosent work.
 
Willie B

Willie B

Senior Member
Joined
Jan 2, 2016
Messages
4,063
Location
Mount Tabor VT
Occupation
Electrician
Old Doug said:
I dont understand but like the 3208 alot of engines did there job and did it well but even the the best engines have haters. I sleep better when the oil presser gauge dosent work.
Click to expand...
OK, you have a point.
My neighbor 50 years ago had a 1953 Jeep CJ3B (tall flat hood) It had an F head 131 engine. Half the valves were in the block, half were in the head. Horsepower ratings were something like 60. Oil pressure gauge read zero. Local garage owner said, " If you had no oil pressure, it'd seize." He drove it that way another 10 years.
 
O

Old Doug

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Oct 16, 2013
Messages
4,545
Location
Mo
I have a case 1830 skid steer one of the best things i ever bought. It was setting on a dealers lot i went and run it the oil presser gauge is down under the front of the seat. I started it up bent over the gauge was on 40 psi. I got it home and weeks later i went to get in it and happen to look at the gauge it has 40 psi even when its not running.
 
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