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At a loss

R

redneckmechanic

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I got a 1993 Silverado with a 6.5 turbo diesel and nv4500 5 speed. I just did an engine swap and took a 1994 engine and made it a mechanical for the 1993. I now have a no start at all condition. Truck spins over good, but never makes smoke or tries to hit. Getting 60 psi oil pressure and lift pump comes on, getting fuel to injectors. But still no start or even try to start. Any and all help appreciated.
 
Welcome to TTS

You've cracked injector lines I take it to show fuel at the injectors? It could be the glow plugs and/or controller. I know nothing about timing a DB2 IP but if it were far enough out of time it would not fire.
 
Do not use starting fluid, it is very easy to put a hole in top of the piston. The use of starting fluid will ruin the glow plugs almost instantly.

For timing, look on the very top of the timing cover where it meets to the injector pump. There should be two little hash lines that look like a chisel mark. Just line them up touching each other.

Under no circumstances should you ever adjust the timing with the engine running. You have to make a slight adjustment, snug one nut, then restart the engine. If it needs moved, turn the engine off and do it again.

If you're getting no smoke at all and the exhaust pipe, then I suggest pulling out all glow plugs, crank the engine over until you get a mist of fuel from all 8. No mist = no fuel.

Test all glow plugs while they are out. Then reinstall your glow plugs remembering to use anti-seize on the threads.
 
You MUST disable the glow plugs if you're going to try using starting fluid. Starting fluid doesn't directly damage glow plugs, but if the plugs are hot when the starting fluid hits them, the starting fluid will instantly explode, and if this happens with an intake valve open(which it normally does), you get a NASTY explosion out the intake which can blow intakes apart, take out turbos, turbo lines air boxes, or anything else i nthe intake tract. And the explosion from it can blow the glow plug tip off, and send that nice piece of glow plug tip down into the cylinder going through a piston or get lodged on top of a valve causing a valve to smack a piston top. Yes, using starting fluid with glow plugs IS this dangerous. MANY an engine has been lost to it. Engines with intake grid heaters like CUMMINS(and most late model diesels that use both) are even worse. Since the heat source is in the intake, as soon as you spray it in the explosion takes place blowing everything apart. it tends to not do the internal engine damage since the heat source is external to the engine, but the damage it does externally is almost always worse.
 
As mentioned above:
Fuel to injectors. - Check for 12v at pink IP wire. (Also check cold start switch and 12v at IP for cold start and that the wires are not mixed up on the pump.) Check LP pressure as they make noise when no one is home. Open water drain or bleed screw and make sure fuel comes out. Check fuel line at IP inlet for being too long and kinking when installed.
Timing - Did you use a new timing chain?
Speed - you need 100 RPM minimum - a starter can loose 1/2 of it's brushes and still spin the engine slower than required. Make sure the rear brace is on the starter. Imagine the block corner snapping clean off at the starter without it...

Glow plugs after you do get fuel - New 60G's or Duraterms do not heat up as fast or as hot as the old non-self-limiting plugs. Make sure you have self limiting plugs and put a override in for them.
 
Thanks for all the input guys, gonna be a few days till I get to work on it again, gonna be out of town working. but will try it all and see where I get
 
Yes welcome.
How long have you been cranking the engine? It takes along time to bleed the air, as said crack the hard lines, remove GPs and crank til a mist comes out of lines. After that should start right up. Make sure as said you have power to FSOS.
 
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