Oil readings 1970 Cutlass 350
#1
Oil readings 1970 Cutlass 350
Hi,
Have my 1970 Cutlass back together. The engine was rebuilt along with many other things. I'm having very low oil pressure readings as follows and would like some feedback/suggestions. I just changed the oil and put 20W/50 in as per engine builders recommendation.
The manual gauge is connected on the front of the engine right above the temperature gauge and was also checked with another gauge to confirm accurate readings.
Cold start:
Oil 35 PSI then drops as it warms (normal). Service Manual says 7-10 PSI at idle is normal.
After 10 minutes at Idle:
Temp 215-220F
1100 RPM
Oil 5 PSI
Vacuum 18 and remained pretty steady unless I was rev'ing it.
2000 RPM
Oil 13 PSI
2500 RPM
Oil 17 PSI
3000 RPM
Oil 17 PSI
Then let drop back down to idle:
1100 RPM
Temp 220
Oil 3 PSI
Oh, and after 20 minutes of letting her run in the driveway, she just shuts off! Starts up again but doesn't want to stay running.
Have my 1970 Cutlass back together. The engine was rebuilt along with many other things. I'm having very low oil pressure readings as follows and would like some feedback/suggestions. I just changed the oil and put 20W/50 in as per engine builders recommendation.
The manual gauge is connected on the front of the engine right above the temperature gauge and was also checked with another gauge to confirm accurate readings.
Cold start:
Oil 35 PSI then drops as it warms (normal). Service Manual says 7-10 PSI at idle is normal.
After 10 minutes at Idle:
Temp 215-220F
1100 RPM
Oil 5 PSI
Vacuum 18 and remained pretty steady unless I was rev'ing it.
2000 RPM
Oil 13 PSI
2500 RPM
Oil 17 PSI
3000 RPM
Oil 17 PSI
Then let drop back down to idle:
1100 RPM
Temp 220
Oil 3 PSI
Oh, and after 20 minutes of letting her run in the driveway, she just shuts off! Starts up again but doesn't want to stay running.
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ToronadoGuyDenver
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September 8th, 2017 05:04 PM