15 seconds for oil pressure? - Competition Diesel.Com

Ugly Dodge · 05-27-2020, 07:20 AM

Like the title says. It takes 15 seconds to build oil pressure. I never noticed before Covid19 since. I’m not essential. So it’s been sitting a lot. It’s got 400,000 miles. 25MPG. Lots of power. Easy to start. Fresh oil change. Fleetguard. The truck however has been through hell. I’m wondering how close to death the old ISB is.

*Snedge* · 05-27-2020, 09:39 AM

I'd put a manual oil pressure gauge on it to check.
The sensor is only a switch, and the gauge in the dash is only there to make you feel better. If it really was taking 15 seconds to pressure up, I would think that you'd hear the overhead clattering while the rockers waited for the oil to reach them.

Ugly Dodge · 05-27-2020, 10:00 AM

If I start it after it’s been running for a while it gets pressure pretty quick. If that’s relevant.

*BluegrassDiesel* · 05-27-2020, 10:19 AM

Quote:

Originally Posted by Snedge

I'd put a manual oil pressure gauge on it to check.
The sensor is only a switch, and the gauge in the dash is only there to make you feel better. If it really was taking 15 seconds to pressure up, I would think that you'd hear the overhead clattering while the rockers waited for the oil to reach them.

I second the aforementioned motion to install the mechanical gauge. All those in favor say "aye"

4x4dually · 05-27-2020, 10:22 AM

aye

Handy little port on top of the filter housing. Grease gun hose. Gauge.

BigPapa · 05-27-2020, 10:38 AM

Aye.

15 seconds is a pretty long time as Jeff mentioned. Is that a guess or have you actually timed it? My sensor is in the filter head Jory mentioned and it takes 3, maybe 4 seconds to register.

95cummins5.9 · 05-27-2020, 11:59 AM

Aye

Ugly Dodge · 05-27-2020, 01:55 PM

It doesn’t do it warm. The bad alternator did wipe out almost all the electronics (multi function switch, cig light, wiper switch, lots of wiring, etc. ) So I’ll do a gauge when it gets cold again. I’m not panicked because 12 valves are $500.00 -1000.00 locally. I also got multiple tow truck drivers on speed dial. I also had a LF9028 on it before. I switched back to a lf3894 recently. T6 oil every time. Sorry for leaving info out.

bateman · 05-27-2020, 02:33 PM

What is your local? I’ll take two 12v’s at that kinda price.

Ugly Dodge · 05-27-2020, 02:57 PM

Quote:

Originally Posted by bateman

What is your local? I’ll take two 12v’s at that kinda price.

Ohio Craigslist. The latest deal was a VE with the engine stand too. Not too uncommon to find one with a p7100 at a grand. I can’t find ISBs under 1500 which I think is somewhat weird. U would think 12 valves would be more than ISBs.

Ugly Dodge · 06-13-2020, 10:40 AM

Put a gauge on it. Same result.

It was brought up to me switching from 5w40 to 15w40 maybe the culprit. Also I noticed on oil changes the filter isn’t full.

I was advised to drive it once a week to prevent the bearings from drying up.

EDIT: I’ve only run t6 5w40. I was advised to go back to 15w40 what the engine originally calls for.

Highwayman · 06-13-2020, 01:01 PM

What pressure were you seeing when it finally built up?

biggy238 · 06-13-2020, 02:05 PM

Quote:

I was advised to drive it once a week to prevent the bearings from drying up.

Really?

Sent from my motorola one action using Tapatalk

Marq92 · 06-13-2020, 02:27 PM

Bearings are like sponges. Those darn things grow up so fast.

Ugly Dodge · 06-14-2020, 05:21 AM

Quote:

Originally Posted by Highwayman

What pressure were you seeing when it finally built up?

It pegs out the gauge(80psi) at first then reads 40. Sinks down to 15 hot in gear.

Ugly Dodge · 06-14-2020, 05:24 AM

Quote:

Originally Posted by biggy238

Really?

I’ve heard from various tractor owners. Fleet owners etc. Engines need ran once a month.

05-27-2020, 07:20 AM	#1
Ugly Dodge Name: Ugly Dodge Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2020 Location: Ohio Member`s Gallery Posts: 144	15 seconds for oil pressure? Like the title says. It takes 15 seconds to build oil pressure. I never noticed before Covid19 since. I’m not essential. So it’s been sitting a lot. It’s got 400,000 miles. 25MPG. Lots of power. Easy to start. Fresh oil change. Fleetguard. The truck however has been through hell. I’m wondering how close to death the old ISB is.

05-27-2020, 10:22 AM	#5
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	aye Handy little port on top of the filter housing. Grease gun hose. Gauge. __________________ Jory 2009 4x4 3500 MCLB "There are people far less intelligent than you making a living doing this stuff." - Jeff Mumau

05-27-2020, 10:38 AM	#6
BigPapa Name: BigPapa Title: Truckless Status: Not Here Join Date: Jan 2008 Location: Springfield, TN Member`s Gallery Posts: 5,037	Aye. 15 seconds is a pretty long time as Jeff mentioned. Is that a guess or have you actually timed it? My sensor is in the filter head Jory mentioned and it takes 3, maybe 4 seconds to register. __________________ Scott 2003 Avalanche Z71 Common sense is like deodorant. The people that need it most never use it.

06-13-2020, 10:40 AM	#11
Ugly Dodge Name: Ugly Dodge Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2020 Location: Ohio Member`s Gallery Posts: 144	Put a gauge on it. Same result. It was brought up to me switching from 5w40 to 15w40 maybe the culprit. Also I noticed on oil changes the filter isn’t full. I was advised to drive it once a week to prevent the bearings from drying up. EDIT: I’ve only run t6 5w40. I was advised to go back to 15w40 what the engine originally calls for. __________________ 153624 Last edited by Ugly Dodge; 06-13-2020 at 10:52 AM. Reason: Bad grammar

06-13-2020, 02:27 PM	#14
Marq92 Name: Marq92 Title: Too Much Time Status: Not Here Join Date: May 2012 Member`s Gallery Posts: 952	Bearings are like sponges. Those darn things grow up so fast. __________________ 2001.0 QCLB 3500 4x4 3.55 Toyo M-55 255/85R16 Brown's/Goerend 48RE sonnax shafts/maxed count Alto clutches Carli/Deaver 3.0 EMF BJ's PSC 6 bolt box Synergy steering TheRetroShop HID projector retrofit VLED's DC Power 180A alternator W-T ground mod ISSPRO EV2's

05-27-2020, 09:39 AM	#2
Snedge Name: Snedge Title: Comp Diesel Sponsor Status: Not Here Join Date: Sep 2006 Location: Western Pa. Member`s Gallery Posts: 18,859	I'd put a manual oil pressure gauge on it to check. The sensor is only a switch, and the gauge in the dash is only there to make you feel better. If it really was taking 15 seconds to pressure up, I would think that you'd hear the overhead clattering while the rockers waited for the oil to reach them.

05-27-2020, 10:00 AM	#3
Ugly Dodge Name: Ugly Dodge Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2020 Location: Ohio Member`s Gallery Posts: 144	If I start it after it’s been running for a while it gets pressure pretty quick. If that’s relevant.

05-27-2020, 01:55 PM	#8
Ugly Dodge Name: Ugly Dodge Title: Diesel Enthusiast Status: Not Here Join Date: Apr 2020 Location: Ohio Member`s Gallery Posts: 144	It doesn’t do it warm. The bad alternator did wipe out almost all the electronics (multi function switch, cig light, wiper switch, lots of wiring, etc. ) So I’ll do a gauge when it gets cold again. I’m not panicked because 12 valves are $500.00 -1000.00 locally. I also got multiple tow truck drivers on speed dial. I also had a LF9028 on it before. I switched back to a lf3894 recently. T6 oil every time. Sorry for leaving info out.

05-27-2020, 02:33 PM	#9
bateman Name: bateman Title: Too Much Time Status: Not Here Join Date: Feb 2019 Location: Alabama Member`s Gallery Posts: 2,672	What is your local? I’ll take two 12v’s at that kinda price.