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06-18-2017, 01:43 AM
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#1
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Oil pressure issue with twins
After I installed my twins, bleeding and burping the coolant, minor test drives around the shop .8 miles after it heated up, at idle the oil press gauge dropped to 0 and the ck gauge light came on
Idk if it's from the primary turbo line being to big or if it's a fluke and the sensor took a crap. But last night it worked perfectly fine. After a hot idle idle drops to 0 the light comes on,
One time I was accelerating to 1300r the gauge dropped to 0 back up to 60-80psi then went down
Can a too large of a feed line drop oil pressure like that? Or is it a sensor?
Here's a pic of the feed line I'm horrible at an fitting lines is this to big?
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 01:43 AM
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#2
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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That's a horrible picture. I'll get a better one tomorrow
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 02:11 AM
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#3
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Name: DDually
Title: Still spooling..
Status: Not Here
Join Date: Nov 2009
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Posts: 2,095
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The feed line does look GIGANTIC but it's not your oil pressure problem. Sounds like your sensor is bad. Be careful force feeding your primary that much oil.
__________________
1995 Cummins with almost no matching paint, 2 dents
2001 VW TDI South bend, tune, nozzys, custom stuff that's rusting, one custom thing that's not rusting
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06-18-2017, 10:13 AM
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#4
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Ok I got a better picture. Is there some type of restricter valve or anything in the oil filter housing? That needs to see a certain pressure?
What size should that line be? I'm not going to be able to get an fittings I'll have to go to my local hydro shop and get regular jic fittings
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 10:21 AM
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#5
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Here's a few with better light
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 11:20 AM
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#6
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Name: duramax 55
Title: ΘΥΡΑ 7
Status: Not Here
Join Date: Jul 2011
Location: florida
Member`s Gallery
Posts: 59
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l had the same thing happen to my truck last year,I put a new oil sensor and it got fixed,you can always put a manual oil gauge by the oil filter to verify that the sensor is bad
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06-18-2017, 11:46 AM
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#7
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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I am one who isn't a believer in conquincidences. I parked the truck all week the pressure was great I did twins over the weekend and now when it gets hot it looses pressure. That's why I don't think its a sensor. I looked at my brothers feed line and it looks to be 1/4 inch waaayy smaller than what I have
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 11:47 AM
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#8
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
Member`s Gallery
Posts: 5,410
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It looks like -6 it's fine. Put a gauge on it to be sure and throw a sensor in it
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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06-18-2017, 01:25 PM
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#9
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Quote:
Originally Posted by 97rada
It looks like -6 it's fine. Put a gauge on it to be sure and throw a sensor in it
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It is -6 line. I just found out. He mentioned to me about adjusting the oil pressure? With a screwdriver gas anyone ever herd of that?
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 01:27 PM
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#10
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Where should I tap for pressure now that both fittings are taken? Make a t?
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 02:23 PM
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#11
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Quote:
Originally Posted by blackcloudCTD95
Where should I tap for pressure now that both fittings are taken? Make a t?
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I put a t-fitting adaptor in the oil filter housing on the outlet feeding my secondary.
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06-18-2017, 03:04 PM
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#12
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Name: Redrider2911
Title: Too Much Time
Status: Not Here
Join Date: Nov 2015
Location: Yakima, WA
Member`s Gallery
Posts: 780
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Since you are just testing your sensor for accuracy, why not just swap it into the sensor port?
__________________
49 Willys Pickup. 5600lb. 11.8sec @115mph 1/4. 12 valve. MegaSquirted 47RH. 3.54 posi rear. 35" tires. 64mm HE351ve, S475 (75/96/1.32), A/W Intercooler. AFC mods. 5x16s. 191 DVs, 180 pump. 23*. 85psi. Build Thread
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06-18-2017, 04:04 PM
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#13
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Quote:
Originally Posted by Redrider2911
Since you are just testing your sensor for accuracy, why not just swap it into the sensor port?
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Wires won't reach from lower drivers side of the block to the oil filter housing
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-18-2017, 07:10 PM
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#14
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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I went out and got a t fitting tomorrow I will ch3ck pressure and read what it actually is.
So say I actually am dropping pressure. Why now after twins? How does that effect pressure
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-19-2017, 08:51 AM
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#15
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Well I feel alot better. Damn part stores should keep fittings in stock always having to go to a boat supply place is expensive. Someone needs to open a store that stocks oil rated hose silicone hose exhaust pieces , an fittings etc  they will make a killing.
Anyways figured it out, the oil sender is bad. I have great oil pressure cold. 70 cold idle, 1400-1600 rpm I have 95. Hot I have 25-30. I turned the truck off let it sit for 2 mins started it back up, snap your finger I had 25 on the gauge and 30seconds later the gauge on the cluster came up I put it in gear the cluster dropped to 0 but the mechanical gauge said 20-25
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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06-19-2017, 12:45 PM
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#16
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Name: Red Sleeper
Title: Too Much Time
Status: Not Here
Join Date: Aug 2009
Location: Lone Star State
Member`s Gallery
Posts: 4,595
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Glad you figured it out. To me, dodge has always installed lazy oil pressure gauges in these trucks. My 12v takes a good 5-7 seconds to register oil pressure on the dash.
Next time try to find a higher PSI gauge.
__________________
Nick J
'14 Silverado LTZ 5.3 4wd
'05 Cummins QCSB 4wd 48re
'91 Cummins w350 5spd
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06-19-2017, 07:57 PM
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#17
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Bumped the idle up, fixed it did a oil change and added some Lucas additive I drove it home with the gauge on it. Never dropped in traffic. And I had 25-30 after a 10mile drive home
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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