| oil pressure gauge [message #224692] |
Sun, 06 October 2013 11:07  |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Ok, back on this. I'm still not getting good readings on my oil pressure gauge so I'm going to take it back to my mechanic to look at to make sure. This all started when he replaced the intake manifolds and put in the cross over blocking kit Jim K sent to me. I think I'll have him resolve it just to make sure. This is something I just don't want to screw around with. I have some longer camping and fishing trips to make and I want to make sure there isn't a problem here. Just to discribe again what happens is that when first started the oil pressure gauge go way up and stays up at 60 to 80 psi during the warm up. But as the engine warms the pressure drops to at idle below 20 psi, and pretty much stays around that area. When pulling hills and such it does get up to 25 to 30 psi. It runs good and sounds good. I have noticed a new pre-ignition sounds when traveling and accelerating slightly up hills, or when I make a turn and go from idle to acceleration. My question is, how do I read the original gauge. Low to high at the quarter ticks marks. Is the middle tick mark 40 psi?
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] oil pressure gauge [message #224743 is a reply to message #224692] |
Sun, 06 October 2013 23:18  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Tom,
Reference MM X-7525 Section 6A Page 26:
ENGINE OIL PRESSURE TEST (FIGURE 3)
1. Remove oil pressure warning light switch from the left front of the engine.
2. Install oil pressure gauge in hole.
3. Set parking brake. Put transmission selector in "N", neutral position.
4. Start engine and run until normal operating temperature is obtained.
5. Oil pressure should be at idle - 7psi minimum /1500-3000 rpm - 35psi minimum.
From the email below it sounds like you have a remote gage. You can use your remote gage to calibrate the OEM gage.
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of tom geiger
Sent: Sunday, October 06, 2013 11:08 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] oil pressure gauge
Ok, back on this. I'm still not getting good readings on my oil pressure gauge so I'm going to take it back to my mechanic to look
at to make sure. This all started when he replaced the intake manifolds and put in the cross over blocking kit Jim K sent to me. I
think I'll have him resolve it just to make sure. This is something I just don't want to screw around with. I have some longer
camping and fishing trips to make and I want to make sure there isn't a problem here. Just to discribe again what happens is that
when first started the oil pressure gauge go way up and stays up at 60 to 80 psi during the warm up. But as the engine warms the
pressure drops to at idle below 20 psi, and pretty much stays around that area. When pulling hills and such it does get up to 25
to 30 psi. It runs good and sounds good. I have noticed a new pre-ignition sounds when traveling and accelerating slightly up
hills, or when I make a turn and go from idle to acceleration. My question is, how do I read the original gauge. Low to high at
the quarter ticks marks. Is the middle tick mark 40 psi?
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GMCnet mailing list
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: oil pressure gauge [message #224855 is a reply to message #224772] |
Tue, 08 October 2013 09:53 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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Senior Member |
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| A Hamilto wrote on Mon, 07 October 2013 08:52 |
sounds to me like someone put straight 30 weight oil in it.
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That was my first thought as well. Do you know what oil it has in it now?
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: oil pressure gauge [message #224865 is a reply to message #224692] |
Tue, 08 October 2013 11:40 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Timing may be more advanced since they reinstalled the distributor. See where it is for ref and then retard a degree at a time with road tests. .
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: oil pressure gauge [message #224916 is a reply to message #224692] |
Tue, 08 October 2013 21:01 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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If your oil pressure is lower than it was before you changed your intake gaskets my first question would be did you drain the engine block coolant first? If the answer is no you most likely got some coolant in the oil. This is bad you will need to replace the oil and filter before you drive the coach any further if there is a chance the oil has been contaminated.
Roy Keen
Minden,NV
76 X Glenbrook
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