On top of the IP pump there is a rubber return line attached to a brass fitting. Inside this fitting lives a minor (?) curse of the 6.2 Diesel. A GLASS ampule that when clean restricts fuel flow to avoid the Ohio river running back to the fuel tank.Remove the rubber hose and cap it so no dirt gets inside it.....then remove the brass fitting from the top of the injection pump. Take it home to clean or (preferably) to a repair shop that will allow you to clean the inside of the fitting.....when clean it should sparkle like a diamond when light is thrown inside and rattle easily....when the glass gets really dirty it prevents all or most of the return (excess) Diesel fuel from returning to the tank....this causes pressure to build up inside the IP cover which causes the engine to stumble, fart, groan and moan and rev up very little with lousy power and rpm's....don't ask how I found out!!!
When clean it will allow fuel to flow freely while keeping the IP full of fuel and (if your real lucky) the IP the function properly. I learned this the hard way and the IP rebuilder showed me the cause....after I spent way to much to replace the IP&^&%&$#@@!%#
Sorry guys.
Word of warning ...the glass ampule WILL be a PITA (30-45 mins min) to get clean but you will love it when you put it back on and start it. You should be able to blow through it with only a slight restriction and look in with a backlight and see a clear glass ampule.
The DB-2 fuel Injection pump comes in 2 versions regular and heavy duty....The Military uses the heavy duty (150 HP?) The regular version is 135 HP/ either one will work just fine fer the urban jungle.
Please keep the words of wisdom about the trials and tribulations coming....it helps having like minded Men and Women to commiserate with.
Keep the Beer cold.
James Shanks
n1vbn@yahoo.com
1985 M-1009
When clean it will allow fuel to flow freely while keeping the IP full of fuel and (if your real lucky) the IP the function properly. I learned this the hard way and the IP rebuilder showed me the cause....after I spent way to much to replace the IP&^&%&$#@@!%#
Sorry guys.
Word of warning ...the glass ampule WILL be a PITA (30-45 mins min) to get clean but you will love it when you put it back on and start it. You should be able to blow through it with only a slight restriction and look in with a backlight and see a clear glass ampule.
The DB-2 fuel Injection pump comes in 2 versions regular and heavy duty....The Military uses the heavy duty (150 HP?) The regular version is 135 HP/ either one will work just fine fer the urban jungle.
Please keep the words of wisdom about the trials and tribulations coming....it helps having like minded Men and Women to commiserate with.
Keep the Beer cold.
James Shanks
n1vbn@yahoo.com
1985 M-1009