Author Topic: Oil Pressure Issue  (Read 2737 times)

Offline Unofficial

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Oil Pressure Issue
« on: May 12, 2008, 09:19:04 AM »
I noticed that my oil pressure has been low lately. I think it started after I put my headers and dual exhaust on. I did take out the oil dipstick tube when I put in the headers, and I haven't been able to get it in right. I had to cut it, and it still isn't in right. I might be loosing oil out that hole, because my oil was low when I checked it. My oil pressure before was around 30, now it's 15. After driving for a while, it will get back up to 30. Is this anything to worry about?
1987 Custom Deluxe R10
350 TBI bored .040 over
700r4 with a Transgo shift kit
MSD ignition
Long tube headers w/ true duals
Upgraded sound system w/ subwoofer

Offline ccz145a

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Re: Oil Pressure Issue
« Reply #1 on: May 12, 2008, 09:52:40 AM »
The change should have nothing to do with your dip stick, unless, as you say, it is leaking. But even with a leak, pressure would not change unless your getting air in the pump. I'd say you need know if the oil level is low and fix the leak.

Quote
After driving for a while, it will get back up to 30.
Pressure should vary with engine rpm and temperature, not time. As a rule-of-thumb you should have minimum 10psi for every 1000rpm. So, 15psi and idle is acceptable.

1975 C10 Silverado LWB, 454CID, TH400, 10bolt 3.42
11MPG Downhill w/tailwind (but there ain't no hills here)

Offline VileZambonie

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Re: Oil Pressure Issue
« Reply #2 on: May 12, 2008, 10:04:58 AM »
Replace your dipstick and tube and change the oil & filter.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Unofficial

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Re: Oil Pressure Issue
« Reply #3 on: May 12, 2008, 12:55:03 PM »
The oil is only 4 months and a couple hundred miles old.

Nevermind, I guess it's nothing to worry about. Thanks.
1987 Custom Deluxe R10
350 TBI bored .040 over
700r4 with a Transgo shift kit
MSD ignition
Long tube headers w/ true duals
Upgraded sound system w/ subwoofer

Offline ccz145a

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Re: Oil Pressure Issue
« Reply #4 on: May 12, 2008, 01:48:49 PM »
Quote
I guess it's nothing to worry about
Don't stick you head in the sand, friend. Keep looking and see what the problem is. If your leaking enough oil to effect the pressure, then you got a problem.

When you fill it does the pressure return to what it was?
1975 C10 Silverado LWB, 454CID, TH400, 10bolt 3.42
11MPG Downhill w/tailwind (but there ain't no hills here)

Offline Unofficial

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Re: Oil Pressure Issue
« Reply #5 on: May 13, 2008, 09:27:16 AM »

When you fill it does the pressure return to what it was?

Actually, yes. I filled it and it went back up to 30psi.
1987 Custom Deluxe R10
350 TBI bored .040 over
700r4 with a Transgo shift kit
MSD ignition
Long tube headers w/ true duals
Upgraded sound system w/ subwoofer