New IP and injectors still wont start

SlippyRider

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Is your timing 180 degrees out? It's easy to do and would cause the exact symptoms you're describing. You say it starts with ether? Is it running ******, with very low power?

Also, I see comments suggesting these engines won't fire without glow plugs. Nonsense.
A block heater and cranking the engine will fire a properly timed engine with a reasonable amount of compression.

Maybe your pump is 180° out of time.
 

franklin2

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Is your timing 180 degrees out? It's easy to do and would cause the exact symptoms you're describing. You say it starts with ether? Is it running ******, with very low power?

Also, I see comments suggesting these engines won't fire without glow plugs. Nonsense.
A block heater and cranking the engine will fire a properly timed engine with a reasonable amount of compression.

Maybe your pump is 180° out of time.

He said his used to fire with no glowplugs and no block heater down into the 30's. I don't know how that can be possible, mine will not start cold with no assistance even at 60-70 degrees. 80 degrees maybe with a lot of cranking. Once you get it going and it has run some, then yes it will crank the rest of the day with no glowplugs.

I am also finding out that with the Beru glowplugs, I am having to heat them longer. I remember guys on here holding the button for 10-20 seconds before starting, and I thought that was a awful long time, mine always started in the coldest weather with a max of 10 seconds. But through the years I am getting a burned out glowplug here and there, and am finding out someone was using autolites. I have been replacing them individually with beru's, and as I do that I am finding my required glow time is getting longer and longer. I haven't a clue how many autolites are left in there.
 

SlippyRider

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Show me an 6.9 7.3 idi that cold starts at 15deg without block heater, glow plugs, or ether...…...I will pay good money for it.

I won't even consider purchasing a truck on which the previous owner has been using ether. I know it can be used without necessarily damaging anything but, if a reasonable amount of compression is there, using ether is just avoiding addressing whatever issue or issues are actually causing the hard starts. And risking serious damage every time it's used.

If you've got good compression, good batteries, a working block heater and a starter that spins the engine at sufficient RPM, these engines will fire at temps well below freezing, without glow plugs.

It may take quite a few cranks with generous breaks between to let the starter cool, but every spin heats the cylinders making the next crank more likely to fire.

I agree with Black dawg tho; no block heater, no GPs at 15°f, it's not gonna fire.
 
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SlippyRider

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He said his used to fire with no glowplugs and no block heater down into the 30's. I don't know how that can be possible, mine will not start cold with no assistance even at 60-70 degrees. 80 degrees maybe with a lot of cranking. Once you get it going and it has run some, then yes it will crank the rest of the day with no glowplugs.

I am also finding out that with the Beru glowplugs, I am having to heat them longer. I remember guys on here holding the button for 10-20 seconds before starting, and I thought that was a awful long time, mine always started in the coldest weather with a max of 10 seconds. But through the years I am getting a burned out glowplug here and there, and am finding out someone was using autolites. I have been replacing them individually with beru's, and as I do that I am finding my required glow time is getting longer and longer. I haven't a clue how many autolites are left in there.

Is your starter getting tired? Needing 80° weather before it'll fire unassisted is uncharacteristic, in my experience.

Do you know what your compression numbers are? Pretty sure mine would fire down to 20° without any glow plug cycle. That's just a guess, it's been a while since I was running with a broken GP controller, but it was winter and I made sure to plug it in all the time.
 

frankenwrench

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Lol started my Gramps 85 6.9 with a propane line sitting in the breather bowl without gp's gp's or block heater. My truck will start without glow plugs down to 38 degrees without block heater but I also had to replace the starter shortly after. Not real good for it I don't think. But as stated on the first page on this thread, if he didn't remove timing cover or gear wen swapping ips I'm not sure how one would get the timing 180 out....
 

Fred Hemer

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I don't want to be negitive here ! how ever did you mark your bolts and put them in the same location? The wrong bolts in the wrong holes can be a big mistake !
 

franklin2

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Is your starter getting tired? Needing 80° weather before it'll fire unassisted is uncharacteristic, in my experience.

Do you know what your compression numbers are? Pretty sure mine would fire down to 20° without any glow plug cycle. That's just a guess, it's been a while since I was running with a broken GP controller, but it was winter and I made sure to plug it in all the time.

I am sure mine would start also if I plugged it into 110v. I have never used the block heater since I had the truck. I am tight and don't want to run my electric bill up, they draw a lot of power, most of them are 1500w.
 

Dodonne2

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I never took the timing gear cover off when replacing the injection pump.. Why would I? I just unbolted the pump from the timing gear cover and put the new one on. The only way it would be 180 is if the diesel performance rebuilt it 180 out. Its possible. When the truck starts it runs fine right away with a perfect idle sound. Nothing shaking.
I started this truck 2 different mornings below 20 degrees without the block heater or glow plugs. Wouldnt make that up. It started last winter in Jackson hole -15 without a block heater, I cycled the GPs 3 times and it fired up in less than 4 seconds. This is why I am so confused why it wont start now with the glow plugs and the blockheater working in 50 degree weather. I will do a compressieon test this week and put my old injectors back in to see if that fixes it. Maybe Napa sold me junk injectors. It will crank and crank blowing out white smoke. The starter is almost brand new from Napa, Mitsubishi I think. Once a spray a hint of ether in she starts right up, I mean less than a galf second of spraying. Could this be a failing head gasket? Could possibly be the case, I'll check compression this week and let you guys know.

Thanks!
 

pastorjeep

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I noticed twice you said you tested for "power" at the glow plugs but I did not see you say you pulled the plugs and ohm tested them. It seems to me like most here you have a GP issue. The only way to be sure is test each GP, not the voltage to them.
 

SlippyRider

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If your pump were 180 out you'd notice a distinct lack of power, more smoke while running and a much louder "clack clack" engine sound. I'm baffled. You've got fuel delivery happening, as indicated by the white smoke while cranking, maybe the injectors aren't properly atomizing the fuel?

That's completely blind and ignorant guess on my part (sorry, it's what I'm good at)
 
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