1979Eldorado Biarritz DIESEL airlockin fuel system - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Old 11-26-2016, 04:47 PM   #1 (permalink)
Shervin_air
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1979Eldorado Biarritz DIESEL airlockin fuel system

Hi all
As above I was changing the diesel fule pips on the car and after installed them all I try to start the car but you know what happens I got air lock on the fuel system ,what is the best way to get rid off the air lock and bleeding the whole system
Thanks in advance

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Old 11-26-2016, 05:20 PM   #2 (permalink)
OkDually
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Quote:
Originally Posted by Shervin_air View Post
Hi all
As above I was changing the diesel fule pips on the car and after installed them all I try to start the car but you know what happens I got air lock on the fuel system ,what is the best way to get rid off the air lock and bleeding the whole system
Thanks in advance
I would crack each fuel injection open at the injector and crank the engine till the air clears out of each fuel line...

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Old 11-26-2016, 05:30 PM   #3 (permalink)
Shervin_air
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I did open the injectors pips from the injection diesel pump but didn't open the injectors feed line from the injectors but will do that tomorrow but if not is there anything else I can do ?
Thanks for your comment
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Old 11-26-2016, 05:50 PM   #4 (permalink)
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Quote:
Originally Posted by Shervin_air View Post
I did open the injectors pips from the injection diesel pump but didn't open the injectors feed line from the injectors but will do that tomorrow but if not is there anything else I can do ?
Thanks for your comment
Just make sure the filter is full and start cracking lines by each injector,cranking it over till you get fuel flowing.
Best to have a helper on this job..
Once a few get firing the rest will follow.
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1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube Summer+ Formula


Proud member #1039 of The 3500 Dually Club

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Old 11-26-2016, 06:07 PM   #5 (permalink)
Shervin_air
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Oh okay I'll call my man to come and help me on this hope that solve the issue ,the car had some issue befor when the engine running for like 10mins as soon as heat the gas the engine die I find some leak from the fuel line and change it after that now won't start that's why I thought it could be air got in to fuel system
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Old 11-27-2016, 07:28 AM   #6 (permalink)
Shervin_air
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Just bleed the injectors there is like drop of diesel comin out not a lot is that how it meant to be or there is something wrong ?


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Old 11-27-2016, 09:47 AM   #7 (permalink)
57diesel
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Sounds like something isn't right.

Which lines were you changing and why?

Disconnect the return line off the top of the injection pump and make sure you are getting fuel out there when its cranking. If there is a blockage in the return line back to the tank or an internal blockage inside the injection pump it won't send fuel to the injectors.

Is your mechanical fuel pump working? When cranking the engine to test that unplug the wire from the top of the injection pump so it doesn't pump air into the injector lines. If you actually unscrew the return elbow from the top of the pump and crank it with the wire disconnected that should bleed air out the lines, filter, and lift pump and prove the lift pump is working.
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Old 11-27-2016, 04:39 PM   #8 (permalink)
Shervin_air
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Finally got it started,I put external pump between the injection pump feed inline and suck all the air out and I done same thing from return and at the end connected to the mechanical pump and the bleed each injectors and got it start with big smile and the car runs nice
Thanks for all your helpful comments



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Old 11-27-2016, 04:44 PM   #9 (permalink)
Shervin_air
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Quote:
Originally Posted by 57diesel View Post
Sounds like something isn't right.

Which lines were you changing and why?

Disconnect the return line off the top of the injection pump and make sure you are getting fuel out there when its cranking. If there is a blockage in the return line back to the tank or an internal blockage inside the injection pump it won't send fuel to the injectors.

Is your mechanical fuel pump working? When cranking the engine to test that unplug the wire from the top of the injection pump so it doesn't pump air into the injector lines. If you actually unscrew the return elbow from the top of the pump and crank it with the wire disconnected that should bleed air out the lines, filter, and lift pump and prove the lift pump is working.


I was changing the pipe from mechanical pump to injection pump because it was bend and was leaking
But all sorted
Thanks for your helpful info



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Old 11-27-2016, 09:49 PM   #10 (permalink)
57diesel
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Good to hear its alive again. I love those cars. I had an 80 Eldo that I drove the heck out of till I hit a deer with it. Missed it so much I found the Riv to replace it.

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98 Burb K25 4.10's 250K miles, new to me, pretty clean and stock.
95 Burb K25 3.73's CRASHED 250K miles, looks to have been rebuilt at least once, stock, bad rust, DE exhaust w/walker muffler, 8' western plow.
81 Buick Riviera GAVE AWAY with the infamous Olds 5.7 diesel possibly still going strong.
15 VW Golf wagon, TDI. Did the buyback on my 13 Jetta TDI wagon so it was basically a trade up.
96 Burb K25 3.42's SOLD at 340K miles, told it was all original, close race between engine wearing out or body completely rust out.
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