Re: External Oil Pump One Way Valve Mounting
[Re: B1MAXX]
#3193713
11/27/23 06:34 PM
11/27/23 06:34 PM
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Joined: Aug 2003
Posts: 43,347 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,347
Bend,OR USA
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Actually those (Moroso maybe) inline AN filters where design for that application I ended up breaking two oil pump drives on that deal before removing the pump and taking it apart One was a new Hi Po Mopar brand and the other was good use stock one, they both snap, twisted off, around the exact same place on the tips I had to borrow the third one to run that race, I replace it later in that year at another division race
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: External Oil Pump One Way Valve Mounting
[Re: B1MAXX]
#3193738
11/27/23 07:28 PM
11/27/23 07:28 PM
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Joined: Dec 2006
Posts: 2,125 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,125
Byron, NY
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too bawlzy for me. Them engines can barley oil themselves in a perfect world, when you start to get past 6900-7000. Im with B1MAX... these motors (B/RB/Hemi) have been raced for over 50 years with little to no modification to the external oiling set up but for some reason this one is special????? I think there is an issue that a check valve will not help. But thats my 40 yrs experience talking so I may be wrong As a point of consideration...every fitting.connection will cause a disturbance in flow (reduced flow) and most if not all of us that have had check valves in any type of system have never seen them fail....as an example I had a check in the oil cooler line on my Bruno, it (the Bruno) got hot enough to melt the DOT spec vent hose laying on the case, why because a piece of debris got in the check and wouldn't let it open (the pressure side) want to bet whats going to happen on the suction side???
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: External Oil Pump One Way Valve Mounting
[Re: B1MAXX]
#3193746
11/27/23 07:45 PM
11/27/23 07:45 PM
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Joined: Jan 2004
Posts: 8,372 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,372
fredericksburg,va
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Heck the factory will bypass the filter on the pressure side before hurting anything. The reason I’m not using a filter on my 340, pump feeds straight up to galleys not through all those 90* bends and through a filter that restricts flow. If your pump stops working (0 pressure) let’s see you kill the engine before it blows. By the time it drops it’s already over and gone. Filters are for street cars.
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Re: External Oil Pump One Way Valve Mounting
[Re: cudaman1969]
#3193752
11/27/23 08:17 PM
11/27/23 08:17 PM
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Joined: Dec 2003
Posts: 22,774 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,774
Bitopia
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Seems the least harm here can come from a check valve on the pressure side, not the vacuum side. Oil CANNOT leave the immersed suction side unless somehow air to replace the leaking oil can somehow gain entry, and a pressure side check would "check" both air and oil, regardless of loops, fittings, etc. How/where you can place a check valve on the pressure side for a BBM is above my pay grade.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: External Oil Pump One Way Valve Mounting
[Re: mopar dave]
#3193786
11/27/23 10:01 PM
11/27/23 10:01 PM
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Joined: Mar 2008
Posts: 554 Kentucky
clovis
OP
mopar
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OP
mopar
Joined: Mar 2008
Posts: 554
Kentucky
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Short line mock up. While I am concerned about the check valve restriction, I have to keep reminding myself that on my “race” motor that I spin 7500 it uses a 3/8 internal pickup and the bearings always look good on it when i take it down. Even with the restrictions on a 12AN line it seems it has to be getting more oil than the internal 3/8 pickup. I was first concerned about the 120 degree fitting at the oil pump being a restriction but it does hold 80lbs at idle.
'75 Plymouth Duster Phase I 451 906/590/2-660 10.75/126 Phase II 451 Stage VI/590/1050 9.82/135 Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: External Oil Pump One Way Valve Mounting
[Re: clovis]
#3193790
11/27/23 10:42 PM
11/27/23 10:42 PM
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Joined: Jan 2012
Posts: 2,690 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,690
Stuttgart, Arkansas
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I like to think I'm familiar with every Milodon Mopar oil pump of the last 50 years but I've never seen one like that.
2011 Drag Pak Challenger
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Re: External Oil Pump One Way Valve Mounting
[Re: Cab_Burge]
#3193827
11/28/23 07:59 AM
11/28/23 07:59 AM
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Joined: Mar 2008
Posts: 554 Kentucky
clovis
OP
mopar
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OP
mopar
Joined: Mar 2008
Posts: 554
Kentucky
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It is what you get when order a 21815 (the photo is old to new design)-it just has a Meiling pump cover on it. I called Milodon and they had no reservations with me using the stock style cover on it. It is the same with the their pump cover with the OEM style pump, I think they are designed to be used with OEM parts.
Last edited by clovis; 11/28/23 08:02 AM.
'75 Plymouth Duster Phase I 451 906/590/2-660 10.75/126 Phase II 451 Stage VI/590/1050 9.82/135 Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: External Oil Pump One Way Valve Mounting
[Re: HardcoreB]
#3193849
11/28/23 10:52 AM
11/28/23 10:52 AM
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Joined: Oct 2005
Posts: 8,925 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,925
Ontario, Canada
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I like to think I'm familiar with every Milodon Mopar oil pump of the last 50 years but I've never seen one like that. Guess you haven't looked in a Milodon catalog in the past ten years ... these aren't new !! FWIW, now that I see the pump open I recall drain back issues being related to the design of Milodon's rotor design. If you were using a standard HV pump with a Milodon block plate for external pickup you would have no issues with drain back.
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Re: External Oil Pump One Way Valve Mounting
[Re: Stanton]
#3193851
11/28/23 10:57 AM
11/28/23 10:57 AM
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Joined: Jan 2004
Posts: 8,372 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,372
fredericksburg,va
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I like to think I'm familiar with every Milodon Mopar oil pump of the last 50 years but I've never seen one like that. Guess you haven't looked in a Milodon catalog in the past ten years ... these aren't new !! FWIW, now that I see the pump open I recall drain back issues being related to the design of Milodon's rotor design. If you were using a standard HV pump with a Milodon block plate for external pickup you would have no issues with drain back. Interesting on what you say there, I have one of each type vanes and debating which would be better.
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Re: External Oil Pump One Way Valve Mounting
[Re: rickseeman]
#3194117
11/29/23 10:47 AM
11/29/23 10:47 AM
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Joined: Dec 2003
Posts: 22,774 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,774
Bitopia
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Now if we could only get Peterson to incorporate a pre-screen, we would be all set.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: External Oil Pump One Way Valve Mounting
[Re: jcc]
#3194165
11/29/23 01:32 PM
11/29/23 01:32 PM
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Joined: Jan 2003
Posts: 13,414 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,414
Marion, South Carolina [><]
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Here's what I've run on my hemi for many years w/ no issues at all. Milodon pump w/ a stock cast iron pump cover. 7200+ rpm.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: External Oil Pump One Way Valve Mounting
[Re: an8sec70cuda]
#3194216
11/29/23 05:25 PM
11/29/23 05:25 PM
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Joined: Aug 2003
Posts: 43,347 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,347
Bend,OR USA
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Here's what I've run on my hemi for many years w/ no issues at all. Milodon pump w/ a stock cast iron pump cover. 7200+ rpm. Who popped a wheelie and bashed his oil pan on the return to earth I'm glad it didn't tear it open
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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