Re: oil pressure fluctuations
[Re: slickrock]
#1772495
03/05/15 08:37 PM
03/05/15 08:37 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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I'd hook up a cheap after market mechanical gauge, cause it would be the easiest and cheapest to do. Wouldn't even have to mount it, if you want to keep the dash stock. If it shows the same symptoms then no need to dig into the dash to replace the factory gauge. I'm kinda leaning towards the pick up tube next. Loose or cracked.
I have mechanical Aptitude. I can screw up anything.
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Re: oil pressure fluctuations
[Re: JohnH]
#1772499
03/05/15 11:50 PM
03/05/15 11:50 PM
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Joined: Nov 2007
Posts: 21,909 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,909
Kirkland, Washington
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Quote:
Also, my 440 I put a "T" coming-out of the block for the oil pressure.I have the factory gage, and I also installed a direct pressure gage. The factory says 20 psi,, and the direct stays at 50psi.. But you do have two places to install oil pressure gages back there if you don't want to T it off, If you install a direct gage, which I recommend get copper tubing, don't use that plastic. I feel strongly there is no windage tray on that block,, but like every one is saying get a direct gage..
What factory (Mopar 440 equipped) gauge has PSI readings on it???
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Re: oil pressure fluctuations
[Re: Pacnorthcuda]
#1772500
03/06/15 01:43 AM
03/06/15 01:43 AM
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Joined: Jan 2003
Posts: 5,467 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,467
So Cal
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Quote:
Quote:
Also, my 440 I put a "T" coming-out of the block for the oil pressure.I have the factory gage, and I also installed a direct pressure gage. The factory says 20 psi,, and the direct stays at 50psi.. But you do have two places to install oil pressure gages back there if you don't want to T it off, If you install a direct gage, which I recommend get copper tubing, don't use that plastic. I feel strongly there is no windage tray on that block,, but like every one is saying get a direct gage..
What factory (Mopar 440 equipped) gauge has PSI readings on it???
My 70RR has PSI readings on the OE oil guage...
Just my $0.02...
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Re: oil pressure fluctuations
[Re: Sinitro]
#1772501
03/06/15 02:13 AM
03/06/15 02:13 AM
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Joined: Nov 2003
Posts: 549 WV
JohnH
mopar
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mopar
Joined: Nov 2003
Posts: 549
WV
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Quote:
Quote:
Quote:
Also, my 440 I put a "T" coming-out of the block for the oil pressure.I have the factory gage, and I also installed a direct pressure gage. The factory says 20 psi,, and the direct stays at 50psi.. But you do have two places to install oil pressure gages back there if you don't want to T it off, If you install a direct gage, which I recommend get copper tubing, don't use that plastic. I feel strongly there is no windage tray on that block,, but like every one is saying get a direct gage..
What factory (Mopar 440 equipped) gauge has PSI readings on it???
My 70RR has PSI readings on the OE oil guage... My 69 Charger has PSI
Just my $0.02...
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Re: oil pressure fluctuations
[Re: Pacnorthcuda]
#1772502
03/06/15 02:14 AM
03/06/15 02:14 AM
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Joined: Nov 2003
Posts: 549 WV
JohnH
mopar
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mopar
Joined: Nov 2003
Posts: 549
WV
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Quote:
Quote:
Remember a 440 is a dry sump engine,
Umm, no its not.
Ummm yes it is..
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Re: oil pressure fluctuations
[Re: slickrock]
#1772505
03/06/15 05:04 AM
03/06/15 05:04 AM
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Joined: Aug 2003
Posts: 43,719 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,719
Bend,OR USA
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It sounds like it is time for you to find out exactly how much oil is in your engine now and how much it should have. Drain the oil with the motor hot or at least warm and measure it, write it down and then look at the oil pan and see if it has any numbers stamped into or on the oil pan anywhere If it does let us know those numbers, Mopar had two different stock oil pans on the BB and Hemi motors in 1970 and 1971 The common production "402' oil pan and the 1970/71 only 426 street hemi and 440 6 pak oil pan If you oil pan doesn't have any numbers stamp into it measure the depth of it at the back of the sump where the oil drain plug is, measure from the engine block down to the bottom of the oil pan and the length and width of the center oil sump and let us know those measurements The common misconception on the proper amount of oil in the stock 402 oil pans originates from factory service manuals that said 4 quarts, they had the wrong amount in them It show 4 quarts plus one for the oil filter, Mopar sent out several diffeent service bulletins over the years correcting that to be 5 quarts plus one for the oil filter the 1970/1971 426 street Hemi and 440- 6 pak oil pans hold 6 quarts plus one for the oil filter, that is the best stock oil pan to use in any 1966 to 1971 B and E body with a B or RB or Street Hemi motor in those cars You need the matching oil pick up also to use those pans correctly to prevent oil starvation.Let us know what you find out, I always add the proper amount of oil to the motors I build and then make sure the oil dipstick is showing full with the correct amount of oil in them, if not reading correctly I correct and calibrate the dipstick so it reads correctly I learned a very hard lesson years ago on a car I took in trade, the Mopar chrome dipstick showed the motor to be around a half a quart over full when it only had two and half quarts of oil in the oil pan I ended up spinning a rod bearing in that motor due to oil starvation I now drain and verify all the motors I take in that I didn't build to start with No matter who built them, verify, verify and reverify to make sure you know exactly what you have IHTHs
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: oil pressure fluctuations
[Re: dynorad]
#1772508
03/06/15 04:12 PM
03/06/15 04:12 PM
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Joined: Feb 2005
Posts: 4,333 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,333
Prospect, PA
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Quote:
When the oil pressure says "0" are your rods knocking? If not that would point to incorrect pressure gauge.
if it has hydraulic lifters you would think those would be clattering pretty good....
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