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Drag Racing Where ALL Racers are Welcome- From ET Bracket, all the way to ProStreet and Top Diesel! |
10-26-2019, 09:03 PM
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#1
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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P-pump drag racers.
Venting thru afc housing to catch can. Damned near pushing quart out each pass.
Vented thru two rocker covers also has evac into exhaust.
This pump pushing oil out is getting aggravating.
The two rocker box vents push no oil.
Thoughts and suggestions.
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Last edited by RacinDuallie; 10-26-2019 at 09:07 PM.
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10-26-2019, 09:34 PM
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#2
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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More info.
Evap to exhaust through #1 and #6 rocker boxes.
Evap to can through #2 and #4 rocker boxes plus afc housing.
#2&4 push little to no oil.
Afc vent pushes the oil. Wtf.
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10-26-2019, 09:36 PM
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#3
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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Pump is a Farrell Stage 5.
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10-26-2019, 09:40 PM
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#4
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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10-26-2019, 10:14 PM
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#5
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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Back in the glory days, this thread would have been getting hits already..... wtf.
*tap tap tap.
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10-26-2019, 10:16 PM
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#6
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Name: 56cummins
Title: Too Much Time
Status: Not Here
Join Date: Mar 2014
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Posts: 733
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Why vent the afc? You could be contaminating the pump with more combustion gases because of the vent.
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95 cummins
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10-26-2019, 10:26 PM
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#7
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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Quote:
Originally Posted by 56cummins
Why vent the afc? You could be contaminating the pump with more combustion gases because of the vent.
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Afc vents into catch can. Went with vent out of top of afc after blowing out to rear pump gov housing gaskets due to blowout of these gaskets.
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10-27-2019, 12:41 AM
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#8
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Name: Rich dzl
Title: 12v guru
Status: Not Here
Join Date: Mar 2011
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Posts: 741
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Check for blown afc diaphragm, boost pressure inside the pump
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10-27-2019, 12:45 AM
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#9
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Name: 56cummins
Title: Too Much Time
Status: Not Here
Join Date: Mar 2014
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Posts: 733
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Good reason. Vent the front cover or tappet cover? Do you have a restriction in the oil feed?
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95 cummins
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10-27-2019, 06:11 AM
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#10
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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Quote:
Originally Posted by RacinDuallie
Back in the glory days, this thread would have been getting hits already..... wtf.
*tap tap tap.
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Lol, you ok Buddy?
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2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-27-2019, 06:33 AM
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#11
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
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Posts: 17,369
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Quote:
Originally Posted by T-MAN
Lol, you ok Buddy?
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10-27-2019, 06:45 AM
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#12
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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Quote:
Originally Posted by 56cummins
Good reason. Vent the front cover or tappet cover? Do you have a restriction in the oil feed?
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There a restricted fitting for the oil feed and im using the outward port.
The common rail block doesn't have the tappet cover
I cant fit a vent in the front cover without cutting my fan mount.
I blew the gov. housing gasket out twice near the top behind the afc housing and it put oil everywhere. After the second time this happened realizing the oil level in the pump should never get that high I figured I would work with it instead of fighting it, That was the reason for the line straight off the afc to a can. I got the idea from a pic (I believe a schied truck) that did the same thing back in the day. The return from the front of the pump is clear. The motor has a total of 5 5/8 vent lines to let it breath, The pump floods and overflows and the rocker box covers seep after a run. Im pretty sure its the positive crankcase pressure not allowing the pump to drain, Then the oil pressure allows the pump to fill and push the oil out through the afc cap. 3/4 quart over 12 seconds...
I will check the afc also for leaks, How much of a pain is the self contained pump conversion and with a good synthetic oil how many passes would be safe for a 9 second truck? usually only get 4-5 passes each time at the track....
Also what is the oil level in the ppump while its running how high or below the feed line or front drain?
Thanks for any info....
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2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-27-2019, 08:54 AM
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#13
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,961
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Have you tried unhooking the exhaust vent lines to see if you are pushing back into the engine with the exhaust? Just a stupid Idea.
If everything else checks out, I would just go to a dedicated pump oil setup. Seems to be an issue you are just going to have to fight with as much as you have tried fixing it.
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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10-27-2019, 09:33 AM
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#14
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Name: RacinDuallie
Title: Black Sheep Racing
Status: Not Here
Join Date: Apr 2006
Location: Supporting Northeast Diesel Racing
Member`s Gallery
Posts: 17,369
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Quote:
Originally Posted by Signature600
Have you tried unhooking the exhaust vent lines to see if you are pushing back into the engine with the exhaust? Just a stupid Idea.
If everything else checks out, I would just go to a dedicated pump oil setup. Seems to be an issue you are just going to have to fight with as much as you have tried fixing it.
Chris
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Where do you find these dedicated pump oil setups?
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10-27-2019, 10:00 AM
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#15
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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Quote:
Originally Posted by Signature600
Have you tried unhooking the exhaust vent lines to see if you are pushing back into the engine with the exhaust? Just a stupid Idea.
If everything else checks out, I would just go to a dedicated pump oil setup. Seems to be an issue you are just going to have to fight with as much as you have tried fixing it.
Chris
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I haven't unhooked the evac line but I do have a check valve in there that was working when installed. setup only has like 7 passes on it.
Chris have you run a contained setup? how often and how hard is it to change the oil? was thinking a little ped cock drain and fill through the afc to whatever volume oil the pump needs. question is can I backyard rig this up...
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2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-27-2019, 10:38 AM
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#16
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Name: Signature600
Title: THA MAN!
Status: Not Here
Join Date: Aug 2006
Location: Jeffersonville, Ohio
Member`s Gallery
Posts: 11,961
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I have not run them on trucks, but we run them on some old tractors, lol.
The pullers have run them for years. On the tractors we change the oil with the engines nowadays, every 100-150 hours.
Check with some of the pulling shops, haisley, schied...maybe Seth has an option for you since he built the pump?
Chris
__________________
THANKS TO:
Tim Barber @ TRE Diesel
Jeff Mumau @ Mumau Diesel Service
Rip @ Source Automotive
Don Thuren @ ThurenFab Suspension
Columbus Diesel Supply
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10-27-2019, 02:19 PM
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#17
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Name: kxhonda
Title: Too Much Time
Status: Not Here
Join Date: Feb 2007
Location: Warsaw, IN
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Posts: 393
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If the exhaust evac has check valves make sure they are still good and sealing up. I had them at one time and they would good bad every so often and would push oil out everywhere. Worked great when the check valves were new.
Also what size restriction is in the oil pump feed line?
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Eric Beverly
1999 3500 Ext. Cab, 5spd, 13mm pump, 6x16's, A1000
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10-27-2019, 02:41 PM
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#18
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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I don't remember the exact size from memory, I found a picture I took with a pin gauge in the fitting and the veneer caliper laying on the table said .025. I got the fitting from crazy carl. I will check the check valve again. im thinking contained oiling is going to be the best route. I have 0 oil out the two valve cover vents only out the pump. once the pump oil return hole is covered with oil I have a hard time believing the case pressure is raising pump oil level..... more the pressure feed line and the oil cant drain fast enough or at all while making a pass. I have 2 separate catch cans so I could tell exactly where the oil was coming from. everything is working as it should just need to dump catch can every pass and add almost 2 quarts every other pass
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2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-27-2019, 04:26 PM
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#19
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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He had the pump leak issue before the exhaust evac.
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10-28-2019, 07:57 AM
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#20
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Name: zachu812
Title: Too Much Time
Status: Not Here
Join Date: Apr 2016
Member`s Gallery
Posts: 419
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I'm wondering if there might be something blocking the internal pump drain. I've got some serious blowby on my truck and I've never had a problem pushing oil out of anywhere but my valve cover vents, for the longest time I wasn't running a restricted pump feed either. It sounds to me like there's another factor.
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1995 RCLB 4x4: H-pump, 5x.012s, HX35
2001 RCLB 4x4: H-pump, 6x.013s, S472/S488
EdzGarage, Matt's Diesel Supply, HTS Transmissions
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