90 F-350 No Fuel Out Of The IP HELP!

[Bowhead09]

Hello this is my first time posting anything but I have one that is really driving me crazy. I recently bought a 90 ford f-350 7.3 idi non turbo. When I purchased it the truck was sitting for about six months. I got it fairly cheap for the condition it was in so I didn't question the fact that we had to spray wd-40 in the intake to get it started. So I drove it home a little over a 100 miles with no problems. I noticed the next day when I went out to the truck that it would not start up on its own. Once again I had to spray the wd-40 and got it going. So this is what I came up with I replaced the fuel filter and have plenty of flo going out of the filter and into the ip but I have a extremely small amount coming out when trying to crank it. I have checked the fss and it does have power. I believe it is ether going to be the mechanical pump not pushing the fuel hard enough to make it threw the ip when trying to crank it or the ip is bad. PLEASE HELP! Thanks

 

[Dieselcrawler]

will it start once it is warm? even if it is 90 degrees outside, most IDI engines still need glowplugs the first start up of the day. do your glow plugs work at all?

 

[Bowhead09]

The truck will crank up right after you shut it off but if I wait more than 30 min it will not start unless I use the wd-40. I did check the glo plugs with a test light

 

[fordf350man]

check for air leaks in the fuel system

 

[Bowhead09]

I have and I don't see any. I took off the lines coming out of the ip and I had no fuel coming out even when trying to crank. Shouldn't there be fuel coming out? I have checked the flow coming out of the fuel filter and into the ip and it seems very good but none coming out of the ip to the fuel rails.

 

[79jasper]

Sounds like injector pump to me.

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[Dieselcrawler]

not a lot of fuel will come out of the injector line.

 

[icanfixall]

Welcome to the forum. Very little fuel can be seen leaving the injection pump from eithr end of the lines. Nearly 80% or more of the fuel leaving the fuel filter is used as pump lube and injector cooling. It flows thru the return lines back to the tank. Sounds like your glow plugs are not working too. Many reasons why they test good but system wont work. As for hard strats 30 minutes after a warmed up shut down usually means the injection pump is worn out. Next warm shut down try pouring about a quart of cool but not ice cold water on the injection pump near the hard lines leaving the pump. That area is where the pump makes enough pressure to force fuel to open the injectors. As it wears out the clearances open up and when warm it can't make enough pressure. Unless you can speed up the cranking of the engine like a pull start. If the water makes the engine start then you have at least a bad injection pump. Please don't attemp removing the pump or buying an ebay cheap one till you ask questions here. Way too many bad ways of removing a pump and buying crappy fake rebuilt pumps.