No start

[flomulgator]

help me!

After months of work I have finally replaced the engine in my 91 burb. An old 6.5 repower went out, a new 6.5 repower in. 6.5 block, all original 6.2 components. Now that I'm at the finish line, I can't get it to start. Followed TDP air-lock guidlines, no luck. Cranking power is weak near the end but I figure that's to be expected with the starter and batteries being used again and again. Still never caught even once, so I don't think that's the issue.

So I checked the voltage on a glow plug. I put the + on the glow plug wire and the - on the - battery terminal. Nothing (on "ON" cycle of engine when glow plugs normally light). Should that circut work that way? Is that indicative of no glow plug action? Can't really check the dash light as that is in pieces. Would no glow plugs lead to no start ever?

Also, I'm worried that if it is not lighting the glow plugs it may be that the controller is not properly grounded. The old studs on a water passage cover that it mounts to were replaced with new ones that are coated black. Not paint just that black color that some bolts come in. Could this color/coating be inhibiting my ground and thus the controller?

After months of hard work I just want to hear that diesel roar to life and this final frustration is killing me! :mad:

[Warren96]

Try plugging in the block heater for a couple of hours and then see if it will go. The heater will pick it up if the glows don't go. then you can tell if the glow is the problem or something else. Good luck. Keep us posted.

[flomulgator]

Thanks for the advice, that was a "duh" moment for me when you mentioned it! Sadly however, I have to report it didn't work. The engine was almost too hot to touch when I tried the trick and it was a no go. The injectors don't seem to be leaking fuel very much at all now when I loosen the lines. I feel that it is fuel starved for one reason or another. What is the sequence for bleeding the fuel filter and loosening the fuel tank cap? Any other ideas on fuel delivery, air bleeding or whatnot?

As a side note, I think i blew a fuse on the starter. 85 degree heat, maybe a 140 degree engine, and a 25 second crank was a bit much. Either that or the solenoid keeled over, which would suck much worse. Never turned over a second time. Obviously I need to address that tangent before I get back to the problem at hand :(