High Oil Pressure
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Joined: Jul 2008
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From: VA
High Oil Pressure
I recently dropped a ZZ383 crate motor into my 64. Drove it about 25 miles in December and put it up until better weather. Pulled it out of the garage yesterday. After idling for about 12 minutes, noticed oil pressure gauge pegged to the right. Fluctuates a little when I give it gas in neutral, but when I drove it around the block it would peg again while in 1st gear. Put the engine in back in Oct, so oil is new. Level is good. Any suggestions? It got down to right around freezing in my garage for a couple of days back in Jan. Not sure if that has any bearing on the problem. My one and only trusted mechanic is a 45 min drive away. Will have it flat-bedded down there if need be.
Thanks.
Wes
Thanks.
Wes
Drifting
Joined: Jan 2005
Posts: 1,966
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From: Myrtle Beach, SC
The temps getting down to freezing back in Jan should have no bearing on it.
It could just be the sensor, as I've heard many stories of the guage pegging to the right when the sensor goes bad. But that could prove to be an expensive assumption if there's something more problematic going on.
After 12 minutes of idling your oil should be reasonably close to operating temperature, even in cold areas of the coutry.
It could just be the sensor, as I've heard many stories of the guage pegging to the right when the sensor goes bad. But that could prove to be an expensive assumption if there's something more problematic going on.
After 12 minutes of idling your oil should be reasonably close to operating temperature, even in cold areas of the coutry.
Drifting
Joined: Jul 2005
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From: Avondale Arizona
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I'm going to guess you're talking about your '64, so no issues with a sensor, especially if you're still using your mechanical gauge. I'd say you are just experiencing thick, cold oil. What viscosity do you have in it. Use 5 or 10 w in cold weather and you probably won't have this issue. If it does persist, you might check pressure with a separate mechanical gauge off the outlet at the back of the block.
Dave
Dave
Drifting
Joined: Jan 2005
Posts: 1,966
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From: Myrtle Beach, SC
I'm going to guess you're talking about your '64, so no issues with a sensor, especially if you're still using your mechanical gauge. I'd say you are just experiencing thick, cold oil. What viscosity do you have in it. Use 5 or 10 w in cold weather and you probably won't have this issue. If it does persist, you might check pressure with a separate mechanical gauge off the outlet at the back of the block.
Dave
Dave
Good call Dave. Didn't even look at his screen name to see that.
Drifting
Joined: Jul 2005
Posts: 1,754
Likes: 710
From: Avondale Arizona
2024 Corvette of the Year Finalist - Modified
2023 C2 of the Year Winner - Modified
2022 C2 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (appearance mods)
St. Jude Donor '19-'20-'21
