Another cold start issue

[roscoFJ73]

One more cosideration I haven't seen addressed: when was your last compression test and what were the results? Maybe you are down on a couple cylinders when cold. Just a thought.

B

x3 Bad news but thats the way I see it too.

 

[brownbear]

Hi guys,
Wow I get busy for a day and look at the all the new ideas. Thanks,
So here it goes, I tried (for the hell of it and since it was a quick test) to unplug the water temp sensor before starting. Now the weather is not bad here, +5C, and I still had issues, the glow time for the primary relay was a bit longer then usual but nothing special. When I turned over the engine it had little issues with running smooth. I have to be honest, I have not done a compression check. For this I will have to either go to a mechanic or just buy the tester myself since I don't have one. I have been meaning to do that. I did notice that my priming pump is wet, there seems to be fuel leaking through that seal, but this is new and the problem has been evident since day 1 after I bought the truck. I am going to replace the fuel hose with something that will allow me to see the fuel level and see if there is an air/fuel leak that is actually causing this. Although in more cold environments (-10C and below) I have noticed that there is a significant amount of black smoke at start up, so fuel delivery does not seem to be the problem. Regardless I will check and let you know what happens.
As for rebuilding the injector pump, I will leave that option as a last resort if all else fails, but thanks for the suggestions guys.

Hey Mat,
The fuel primer on most can leak, may or may not cause a problem.
Air generally should not cause an engine not to start.

But maybe quit. Or be extremely rough.

Do the comp test.

Also for the sake of just because, disconnect the glowplug busbar and check each plug for proper resistance.

Yah never know Mr Yota may have provided a bad plug or two.