6.2 Shudders Cold. Leaky Injector?

[uglytruk]

After my '86 Sub is sitting an hour or two, I have ta rev it or floor it whilst driving to get it to fire on alll 8. Just like a gas engine with a bad/fouled plug. After it belches it's grey smoke, it runs smooth.
I suspect a fool injector is dribbling fuel, and flooding the cylinder. Will a laser thermo guage find a cold cylinder?
Mileage is prob 211k, not the best maintained. See it here...

Forward to minute 2:00 >>>

http://www.youtube.com/watch?v=0fn_J221oAw

 

[MaxPF]

A dribbling injector will cause that cylinder to run hot, not cold. More fuel=more heat.

 

[uglytruk]

Good point, it runs nice once it clears up. A friend suggested a prob with a little return lines. They all look good, and the little clamps are present.
I drove it from Las Vegas to LA, via the Mojave Desert. Got a touch over 200f.

Suggestions?

I'll go look for a better vid...

 

[6.2Blazer]

I don't think you can "flood" a cylinder on a diesel.....not like a gas engine in which you can keep the spark from igniting. So as already mentioned if this was happening that cylinder would be too hot.

You could have a line to one or more cylinders with a leak, and thus allowing an air pocket that has to work it's way out (means that cylinder would not be firing until the air was out of the way).

 

[uglytruk]

Good point, and u'r RIGHT!
I called "Hectorwithinjectors" from eBay, in Cal, and he told me that the injector has a little propellor inside, and that they malfunction.
Anyways, he told me to loosen each injector line whilst the engine is running, until I don't lose engine speed. And I tried it, and it worked! When the diesel oil started spraying out, the engine would shake worse, until I got to the culprit. I made a video, but Utube's F*cked up at the moment.
http://www.youtube.com/user/CORVAIRWILD