97 12v will not start - Competition Diesel.Com

fordcummins1992 · 12-01-2018, 01:02 AM

35 psi fuel pressure when key on

Fuel shut off tied up

Timing re set to 14 degrees and re checked

Fuel at injectors

Fuel pressure drops when cranking to almost zero

Airdog pump new filters

Any ideas as im about to torch it

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Red Sleeper · 12-01-2018, 04:54 AM

I had this same issue on a 12v truck I was going to buy for the engine. Wouldn’t fire to save its life and I checked everything like you have.

Shot a little ether to it and fired right off every time like it should. I walked away from that one. Will yours start with ether?

95cummins5.9 · 12-01-2018, 07:27 AM

97s had problems with the sending unit in the tank breaking..maybe try a sump and ditch the unreliable air hog, make sure the woodruff key is on the shutoff lever and shaft. How is it being timed? Does it try to start?

fordcummins1992 · 12-01-2018, 08:39 AM

I have a beans sump on it as for timing im doing it off pump lift its set at .203 lift at tdc

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DISTURBED · 12-01-2018, 08:44 AM

Sis it run before? You didn't time it off number 6 did you?

Mark Nixon · 12-01-2018, 09:47 AM

Fuel pressure dropping to zero while cranking is the key here.
Rig your pump separate from your electrical system with another battery or a capable power supply and give it a try.

Mark.

Mark Nixon · 12-01-2018, 09:54 AM

Also, check to see if the OFV is doing it's job, by building injection pump case pressure.

Mark.

fordcummins1992 · 12-01-2018, 10:44 AM

Ran before pulled apart for a headgasket and reseal timed off number one as ive done multiple times mark how can i check the ofv this truck ran before it got a real and a airdog pump it sat for 2 years prior but ran just fine

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BigPapa · 12-01-2018, 11:48 AM

Quote:

Originally Posted by fordcummins1992

Ran before pulled apart for a headgasket and reseal timed off number one as ive done multiple times mark how can i check the ofv this truck ran before it got a real and a airdog pump it sat for 2 years prior but ran just fine

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Is it just me or does anyone else have trouble reading this? I’m beginning to think it’s because I’m getting older, kind of along the lines of I can’t understand the lyrics to some of the stuff my kids listen to. Do they not teach punctuation anymore? Not one period, comma, or question mark.

Oh, well. Good luck to you.

Stox5225 · 12-01-2018, 08:38 PM

Put a pair of vice grips on the return line and see if it starts. It essentially keeps the excess fuel from draining back to the tank. If the OFV is shot, then the ip won’t build up pressure to inject at the required pressures.

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WUnderwood · 12-01-2018, 10:12 PM

Quote:

Originally Posted by BigPapa

Is it just me or does anyone else have trouble reading this? Do they not teach punctuation anymore? Not one period, comma, or question mark.

No, you aren’t the only one, trust me. It’s sucks, and I don’t speak ebonics, or jive, or millennial.

Mark Nixon · 12-01-2018, 11:01 PM

Try talking to a Texan, one with a horrid "southern" drawl.

Mark.

954x4cummins · 12-09-2018, 05:37 PM

Try a mechincal fuel pressure gage and pin time the pump. Start there.

12-01-2018, 01:02 AM	#1
fordcummins1992 Name: fordcummins1992 Title: boost guy Status: Not Here Join Date: Jul 2009 Location: dauphin manitoba canada Member`s Gallery Posts: 305	97 12v will not start 35 psi fuel pressure when key on Fuel shut off tied up Timing re set to 14 degrees and re checked Fuel at injectors Fuel pressure drops when cranking to almost zero Airdog pump new filters Any ideas as im about to torch it Sent from my SM-G950W using Tapatalk

12-01-2018, 04:54 AM	#2
Red Sleeper Name: Red Sleeper Title: Too Much Time Status: Not Here Join Date: Aug 2009 Location: Lone Star State Member`s Gallery Posts: 4,595	I had this same issue on a 12v truck I was going to buy for the engine. Wouldn’t fire to save its life and I checked everything like you have. Shot a little ether to it and fired right off every time like it should. I walked away from that one. Will yours start with ether? __________________ Nick J '14 Silverado LTZ 5.3 4wd '05 Cummins QCSB 4wd 48re '91 Cummins w350 5spd

12-01-2018, 08:44 AM	#5
DISTURBED Name: DISTURBED Title: YEA WE RIDE THE SHORT BUS Status: Not Here Join Date: Nov 2007 Location: Winchester, Va Member`s Gallery Posts: 6,417	Sis it run before? You didn't time it off number 6 did you? __________________ Thanks, Jeremy 01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig 96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance 96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance

12-01-2018, 09:47 AM	#6
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	Fuel pressure dropping to zero while cranking is the key here. Rig your pump separate from your electrical system with another battery or a capable power supply and give it a try. Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

12-01-2018, 09:54 AM	#7
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	Also, check to see if the OFV is doing it's job, by building injection pump case pressure. Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

12-01-2018, 08:39 AM	#4
fordcummins1992 Name: fordcummins1992 Title: boost guy Status: Not Here Join Date: Jul 2009 Location: dauphin manitoba canada Member`s Gallery Posts: 305	I have a beans sump on it as for timing im doing it off pump lift its set at .203 lift at tdc Sent from my SM-G950W using Tapatalk

12-01-2018, 10:44 AM	#8
fordcummins1992 Name: fordcummins1992 Title: boost guy Status: Not Here Join Date: Jul 2009 Location: dauphin manitoba canada Member`s Gallery Posts: 305	Ran before pulled apart for a headgasket and reseal timed off number one as ive done multiple times mark how can i check the ofv this truck ran before it got a real and a airdog pump it sat for 2 years prior but ran just fine Sent from my SM-G950W using Tapatalk

12-01-2018, 08:38 PM	#10
Stox5225 Name: Stox5225 Title: Green Behind the Ears Status: Not Here Join Date: Nov 2016 Location: Lillington, NC Member`s Gallery Posts: 97	Put a pair of vice grips on the return line and see if it starts. It essentially keeps the excess fuel from draining back to the tank. If the OFV is shot, then the ip won’t build up pressure to inject at the required pressures. 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

12-01-2018, 11:01 PM	#12
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	Try talking to a Texan, one with a horrid "southern" drawl. Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

12-09-2018, 05:37 PM	#13
954x4cummins Name: 954x4cummins Title: Rust bucket Status: Not Here Join Date: Feb 2014 Location: upstate Ny Member`s Gallery Posts: 34	Try a mechincal fuel pressure gage and pin time the pump. Start there.