Re: Oil Pressure Loss under braking
[Re: gzig5]
#2568358
10/23/18 02:18 PM
10/23/18 02:18 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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at the RPM issue when you start braking, if you let off the gas without braking does it drop the same? I'm thinking oil level/pickup clearance. the first thing I would do is toss in another qt (maybe 2) & see what happens. that extra ain't gonna hurt for a day if the level is OK right now. I'm thinking the dent in the pan or partly clogged pickup if there is enough oil present.
live every 24 hour block of time like it's your last day on earth
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Re: Oil Pressure Loss under braking
[Re: buildanother]
#2568398
10/23/18 03:39 PM
10/23/18 03:39 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,303
Bend,OR USA
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Pickup screen probably too far from bottom of oil pan me thinks. Probably so OP, you can check the oil pan pick up height from the bottom of the oil pan by removing the oil pan drain plug and stick a small thin bladed screw driver in that hole and move the tip up and down to measure to get a idea if it is touching the bottom of the pan or way above the bottom. I use the dip stick when I'm building motors on a engine stand, if it won't slide under all the way I'm good, if it does and moves up and down a bunch I'm going to adjust it so it touches or the dip stick will only slide under it sideways or maybe the width at the front and call that good, any more is NOT GOOD As already mentioned all the stock SB oil pans Mopar used don't have acceleration or deacceleration baffles in them You have to add them
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Oil Pressure Loss under braking
[Re: gzig5]
#2568405
10/23/18 04:02 PM
10/23/18 04:02 PM
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Joined: Nov 2007
Posts: 21,845 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,845
Kirkland, Washington
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Just FYI, my experience with it was on a 318 with a known history from new--it was my moms car, oil pan never off, and never dented, meaning whatever the oil pickup distance was, it was that way from factory.
As I recall, if the oil was around 1 quart low, heavy braking would do it.
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Re: Oil Pressure Loss under braking
[Re: dOc …]
#2568620
10/23/18 10:19 PM
10/23/18 10:19 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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294 pan have any baffles at all ? It does not have any.
live every 24 hour block of time like it's your last day on earth
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Re: Oil Pressure Loss under braking
[Re: gzig5]
#2568624
10/23/18 10:22 PM
10/23/18 10:22 PM
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Joined: Nov 2006
Posts: 2,260 IL
furious70
top fuel
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top fuel
Joined: Nov 2006
Posts: 2,260
IL
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My fury would act like that with the stock pan. A little more body to flop up and down though. I baffled my pan and it stopped.
70 Sport Fury 68 Charger 69 Coronet 72 RR
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Re: Oil Pressure Loss under braking
[Re: gzig5]
#2568626
10/23/18 10:25 PM
10/23/18 10:25 PM
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Joined: Jan 2003
Posts: 1,255 Columbus, GA
Michael Ecks
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,255
Columbus, GA
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I think everyone is on the money with pickup height being too high. I can't think of anything else internal to the engine that cares much about fore/aft movement with speed changes. And yes running eight quarts would probably get the level up above it, LOL.
When my 360 was leaking like a seive (but the pickup set right) it wouldn't start the oil light blinking during braking trick until about 2 quarts low.
As for the pan being beat up... Many years ago they started the repaving process on a road in my town. Starting with putting manhole risers on which stick up above the road to account for the planned thickness of the new layer of pavement. Guess what, someone forgot to close the road. So I drive down it, see it coming but not in time to stop or dodge it. Put a huge dent in my K frame, then hit the oil pan and put a good inch or so depression in the pan. How it didn't catch the bottom of the transmission I have no idea. Anyway with that big of a dent it never caused oil starvation issues like you describe.
Checking and resetting the height is probably all you need to do for normal driving, although the stock capacity kevko pans are pretty trick. I wouldn't worry about an extra capacity pan unless you have a high volume oil pump and are spinning it way past the redline of a stock engine.
Last edited by Michael Ecks; 10/23/18 10:31 PM.
"The happiness of your life depends upon the quality of your thoughts" ~ Roman Emperor Marcus Aurelius
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