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10-17-2017, 04:04 PM
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#1
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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Which oil pump to run?
Like the title says I'm trying to dicide which oil pump to buy for my 12 valve. I've tried searching and haven't had much luck on the topic. I'm sure getting a cummins pump would be just fine but from what I can tell they are made in China and they are way more money than the Melling pumps which I believe are made in the USA. Any advice would be appreciated.
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10-17-2017, 04:20 PM
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#2
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Name: 9724VF350
Title: Tractor Guy
Status: Not Here
Join Date: Mar 2010
Location: Northeast Ohio
Member`s Gallery
Posts: 2,784
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OEM is china. They're like $105ish. I've run many of them and never had a problem, several at 5k+ rpm.
__________________
97 F350 4X4 CC Dually 5spd 24V 913 S300/HT3B Ranch Hand.
Playtoy-Oliver 1655. 12V now , 13mm, S475
Wife's ride-03 Excursion 12V swap in the works.
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10-17-2017, 05:23 PM
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#3
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Name: bigstacks95
Title: Diesel Doc
Status: Not Here
Join Date: Jul 2008
Location: Falls Village, CT
Member`s Gallery
Posts: 2,030
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Mine is a Melling and runs well keeping up with a Peterson external relief valve over 5k RPM
__________________
--Dave--
58 Dodge Power Wagon 3.0 Limited Pro Stock diesel pulling truck
2020 Ram 3500 HO/Aisin Laramie/night tow rig
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10-17-2017, 05:48 PM
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#4
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Name: Justappumped24v
Title: Too Much Time
Status: Not Here
Join Date: Feb 2016
Location: Illinois
Member`s Gallery
Posts: 1,311
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Quote:
Originally Posted by BCH
Like the title says I'm trying to dicide which oil pump to buy for my 12 valve. I've tried searching and haven't had much luck on the topic. I'm sure getting a cummins pump would be just fine but from what I can tell they are made in China and they are way more money than the Melling pumps which I believe are made in the USA. Any advice would be appreciated.
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I have an open box never used cummins one I'll ship to you for 80.00
__________________
05 QCSB24v HTD 6.8L, DDP fueling PDD shifted
2011 MCSB 6.7, built 68rfe
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10-17-2017, 08:42 PM
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#5
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Name: Stox5225
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2016
Location: Lillington, NC
Member`s Gallery
Posts: 97
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I upgraded to the 24v pump when I rebuild. It flows more/better. It is a OEM Cummins pump
Sent from my iPhone using Tapatalk
__________________
1997 Cummins 2500; NV4500HD; SB DD; 315/75R16; 3rd Gen Track Bar; 63/65/14; AFC Live; 7mm DV's; 4 GSK; Mac Rack Plug; Custom Fuel System; 5x.012; Colt Cam Big Stick; 60# Springs; PDD Stage 1 Push Rods; O-Ring Head; Head Studs; Fluidampr; Boost/EGT/FP Gauges
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10-17-2017, 09:19 PM
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#6
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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That was going to be my next question. Are all new pumps "upgraded" 24v style pumps or are there still standard 12v pumps?
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10-18-2017, 06:31 AM
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#7
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Name: 9724VF350
Title: Tractor Guy
Status: Not Here
Join Date: Mar 2010
Location: Northeast Ohio
Member`s Gallery
Posts: 2,784
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Quote:
Originally Posted by BCH
That was going to be my next question. Are all new pumps "upgraded" 24v style pumps or are there still standard 12v pumps?
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They're all upgraded pumps.
__________________
97 F350 4X4 CC Dually 5spd 24V 913 S300/HT3B Ranch Hand.
Playtoy-Oliver 1655. 12V now , 13mm, S475
Wife's ride-03 Excursion 12V swap in the works.
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10-18-2017, 08:23 AM
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#8
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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Ok, thanks. Is it a good practice to pack the pump with an assembly lube to assist with priming?
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10-18-2017, 08:39 AM
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#9
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Name: BigPapa
Title: Truckless
Status: Not Here
Join Date: Jan 2008
Location: Springfield, TN
Member`s Gallery
Posts: 5,041
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Cummins calls for the same oil pump from '94-'02, 3937404.
__________________
Scott
2003 Avalanche Z71
Common sense is like deodorant. The people that need it most never use it.
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10-18-2017, 08:56 AM
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#10
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,860
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Quote:
Originally Posted by BigPapa
Cummins calls for the same oil pump from '94-'02, 3937404.
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That part number changes to 4939587 and is the upgraded (standardized) pump. 88-02 Dodges.
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10-18-2017, 09:10 AM
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#11
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Name: BigPapa
Title: Truckless
Status: Not Here
Join Date: Jan 2008
Location: Springfield, TN
Member`s Gallery
Posts: 5,041
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Well, there you go. Straight from The Man.
__________________
Scott
2003 Avalanche Z71
Common sense is like deodorant. The people that need it most never use it.
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10-18-2017, 09:33 AM
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#12
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Name: tornado112
Title: Too Much Time
Status: Not Here
Join Date: Apr 2011
Location: The Great Garden State
Member`s Gallery
Posts: 290
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Im interested in seeing first hand how the upgraded pump effects oil pressure.
__________________
94 Regular Cab Intake 5x12 Contagious Injectors 4kGSK and 60lb springs Adjustable Pump Gear and Timing Cover Auto Meter Steering Box Brace Sphon Adjustable Trac Bar Sphon Sway Bar Links Vision 19.5 Michelin 265-75-19.5 MegaTREK
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10-18-2017, 11:59 AM
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#13
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by tornado112
Im interested in seeing first hand how the upgraded pump effects oil pressure.
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Sounds like you're buying two pumps and measuring back to back on the same engine with similar conditions then!
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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10-18-2017, 09:30 PM
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#14
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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Any input on if using assembly lube to help prime the pump is a good idea or just unnecessary step?
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10-18-2017, 10:17 PM
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#15
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Name: CowboyEdition
Title: Because Diesel
Status: Not Here
Join Date: Feb 2013
Member`s Gallery
Posts: 192
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I always pack the pump with assembly grease before installation. Helps prime the lube system.
Sent from my SM-G935W8 using Tapatalk
__________________
98 12v QCSB Sport Package
0 Plate, 4k gsk, 60# Springs
Ported/Polished/Oringed/Studed Head
DFI 5X0.014's, Standard Pump Mods
S300 VNT Turbo, Mechanically Actuated
Home-built trans with goodies
Borgeson, DOR, Bilstein and Carli Upgrades
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11-06-2017, 07:49 PM
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#16
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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Can anyone give me an example of an assembly lube that can be used in the pump to prime it? Most of the lubes that have the textures that I assume would work are listed as transmission assembly lubes and im not sure if that's something that can be used?
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11-06-2017, 07:58 PM
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#17
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Name: CowboyEdition
Title: Because Diesel
Status: Not Here
Join Date: Feb 2013
Member`s Gallery
Posts: 192
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I use John Deere Extreme Duty Synthetic grease. Part number is TY25744.
Sent from my SM-G935W8 using Tapatalk
__________________
98 12v QCSB Sport Package
0 Plate, 4k gsk, 60# Springs
Ported/Polished/Oringed/Studed Head
DFI 5X0.014's, Standard Pump Mods
S300 VNT Turbo, Mechanically Actuated
Home-built trans with goodies
Borgeson, DOR, Bilstein and Carli Upgrades
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11-06-2017, 08:53 PM
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#18
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Name: BCH
Title: Green Behind the Ears
Status: Not Here
Join Date: Nov 2015
Member`s Gallery
Posts: 37
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Great, ill give that a try. Thank you!
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11-06-2017, 09:51 PM
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#19
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Name: JWhite
Title: Trained monkey
Status: Not Here
Join Date: Aug 2009
Location: F Burg Ohio
Member`s Gallery
Posts: 1,817
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Lubriplate #105. It's just a white lithium assembly lube.
Hell just dump some Lucas oil stabilizer in it.
__________________
GMC with a LiLLY
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11-07-2017, 12:28 AM
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#20
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Name: Cflanery88
Title: Too Much Time
Status: Not Here
Join Date: Feb 2016
Location: Shelby, MI 49455
Member`s Gallery
Posts: 536
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Driven assembly grease is some pretty amazing stuff.
__________________
06 Dodge Ram 2500 6.4L, Wagler +.080 rods, Hobbit tuned, Exergy150% injectors,Polished s475/87 1:0 A/R Engineered Turbo Billet Wheel,arp625s,14mm main studs,PPE dual fuelers,Hamilton 188/220,extreme pushrods,Fleece bypass/drains/distribution block,110#springs.
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