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Old 10-02-2008, 05:14 PM   #15
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thanks had a look at GV site looks promising ambulance is 3ton airstream about 6ton GV seem to think it will work just need mechanic to do it cheers Norman
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Old 10-02-2008, 05:20 PM   #16
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Be sure to post pics of your three year 30K project.
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Old 10-03-2008, 09:22 AM   #17
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Some additional thoughts.

If you have the clearance to set the engine in as a complete unit, exhaust manifold and injection system mounted, here are some things I would do before setting the engine.

Drill the exhaust manifold for an exhaust gas temperature gauge. Just easy to do now. The 6.2 does not like exhaust temperatures above 1200 degree F and a gauge is a must with that load. While driving if you see the exhaust temperature approaching 1100 degree its time to down shift and get the temperature down.

Set the engine up on a stand, hook up a gravity fuel source to the injection pump, dry crank the engine over without power to the injection pump fuel shut off valve. In this position you will be able to bleed each of the high pressure lines easily leaving the engine ready to start once in the chassis. A diesel is real hard to start if the High pressure lines are ever let run out of fuel and they not easy to get to in a cab over type installation so do it a head of time.

When you get to the exhaust system have it made up with 3 in material. The 6.2 likes to breath.

This should not be a hard install if there was a 454 in there before. If you go with the older injection pump there are no chassis modes just fuel and exhaust. Any mechanic that has ever dropped and engine in should not have a problem.
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Old 10-03-2008, 02:23 PM   #18
Full Timers/Diesel power.
 
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Is there no manual bleed off the fuel pump in 6.2 engines?
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Old 10-03-2008, 09:47 PM   #19
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I know you have tried this but I need to bring it up. Go to the GM diesel fourm and put out some inquires. Local diesel shops with experience doing what you want should not be hard to find. Good luck
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Old 10-03-2008, 10:02 PM   #20
Full Timers/Diesel power.
 
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Quote:
Originally Posted by Rebee View Post
I know you have tried this but I need to bring it up. Go to the GM diesel fourm and put out some inquires. Local diesel shops with experience doing what you want should not be hard to find. Good luck
The guy is in frickin' England.
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Old 10-05-2008, 03:17 PM   #21
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Is there no manual bleed off the fuel pump in 6.2 engines?
You have to bleed the injection lines to the injectors before starting the engine if you have exchanged the injection pump or changed injectors. Without this you will burn out the starter long before the engine starts.

Even when bleeding the injector lines you don't want to turn the starter more than a min. without letting it cool down.
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Old 10-05-2008, 03:52 PM   #22
Full Timers/Diesel power.
 
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So, if you run out of fuel, no way to purge the lines without cranking on the starter? That's nuts.
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Old 10-05-2008, 04:14 PM   #23
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So, if you run out of fuel, no way to purge the lines without cranking on the starter? That's nuts.
No Running out of fuel you would still have fuel in the injection lines just that the injection pump would be dry and not be able to produce the force necessary to open the injectors, 1200 lbs +. On the 6.2 you could bleed the fuel line at the fuel filter or at the injection pump input. She would start a bit rough but would start.

Rule of thumb is not to run out of fuel with a diesel.
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