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| Still have low oil pressure, after installing a high volume oil pump (Page 2/4) |
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olejoedad
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SEP 26, 10:24 AM
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| quote | Originally posted by 1Packrat:
Like you I had the same problem with my 2.8 when the mileage went over 100K and using 5w30 oil. It would produce the same symptoms you have. It would not maintain pressure at idle and would sometime cause the oil light to blink. On rare occasions it would turn off the fuel pump and the car would stall. My solution was to increase the oil viscosity I moved to using 10w40 and have never had the problem again and now the mileage is 160K. My wife tried to be nice one time she was using the car and stopped and had the oil changed for me. The shop used 5w30 which the car calls for. It took 1 can of STP for the oil light to stay off at idle.
To test your car you could try adding the STP and see if your problem goes away. If it does then on your next oil change increase the oil viscosity 1 grade.
If you ever get to having to use 20w50 start saving for motor work.. |
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If your car shut off from low oil pressure, your fuel pump relay is not working.
This can be verified by disconnecting the OP sender with engine running.
If the car continues to run, the F/P relay is good, your stalling was caused by another issue.
If the engine dies, the F/P relay is bad.[This message has been edited by olejoedad (edited 09-26-2017).]
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olejoedad
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SEP 26, 10:31 AM
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Again, I ask the originator of this thread.....
Did you use the 2.8 oil pump and pickup, or did you use a 3.4 oil pump and pickup and modify the baffles in the oil pan?
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Madess
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SEP 26, 11:25 AM
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Sorry, 2.8 pickup with 3.4 pump [This message has been edited by Madess (edited 09-26-2017).]
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olejoedad
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SEP 26, 01:41 PM
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Raydar
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SEP 26, 06:44 PM
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| quote | Originally posted by Madess:
Sorry, 2.8 pickup with 3.4 pump
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If that's the same engine I think it is... when it went together (it was originally a Grooms rebuild - purchased as a long block) the pump that came with it was lots larger than the 2.8 pump. I assumed it was the 3.4 pump.
How many miles are on the engine/car now?
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Madess
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SEP 29, 10:00 AM
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Nah, this is my normally aspirated 3.4. Yours is now turboed.
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Madess
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SEP 29, 11:36 AM
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The 20w50 did not raise the oil pressure, so I am going to pull the bearing caps and check them. In the oil pan, I did find these little pieces of metal. Not sure what they are.
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tshark
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SEP 29, 07:09 PM
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... [This message has been edited by tshark (edited 09-08-2018).]
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Madess
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JAN 21, 06:01 PM
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So, I took the bolts out of the main bearings, but I can not get the caps off, any thoughts?
Thanks.
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RotrexFiero
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JAN 21, 08:21 PM
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Those bits and pieces definitely look like rod or main bearings.
You are gonna have to do a rebuild.
Once the bolts are off the caps, you have to gently tap the caps and they will work loose.
I have heard of people replacing these with the engine in car. They are able to reach around and insert new bearings. But, if you spun a bearing then you crank is scored and needs refinished, and then fitted with the appropriately sized bearing.
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