D2 injector problem

smokiejoe70
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2 years 6 months ago #236436 by smokiejoe70

D2 injector problem was created by smokiejoe70

I have a late model D2 serial # 5U 13773. I have rebuilt the transfer pump and am trying to get it started. I have fuel all the way to the injectors but get no smoke. Any ideas on how to get these valves to open?

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Rome K/G
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2 years 6 months ago - 2 years 6 months ago #236437 by Rome K/G

Replied by Rome K/G on topic D2 injector problem

Fuel to injector nozzles or pumps? There are bleed screws behind the pumps [original ones]. Throttle open while bleeding nozzles? Throttle closed when bleeding pumps.

Last edit: 2 years 6 months ago by Rome K/G.

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smokiejoe70
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2 years 6 months ago #236438 by smokiejoe70

Replied by smokiejoe70 on topic D2 injector problem

I have done both as per manual specs but no smoke

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Rome K/G
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2 years 6 months ago #236439 by Rome K/G

Replied by Rome K/G on topic D2 injector problem

Is the throttle opened or pulled back enough? Compression lever in run position?

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Old Magnet
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2 years 6 months ago #236443 by Old Magnet

Replied by Old Magnet on topic D2 injector problem

and are the pump lifters making full stroke?

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Fat Dan
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2 years 6 months ago #236449 by Fat Dan

Replied by Fat Dan on topic D2 injector problem

Rome wrote:
Is the throttle opened or pulled back enough? Compression lever in run position?

Yup , did that before.
Got excited because I ran out of fuel while on the road and forgot to put the compression lever to run.

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Rome K/G
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2 years 6 months ago #236457 by Rome K/G

Replied by Rome K/G on topic D2 injector problem

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josh
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2 years 6 months ago #236470 by josh

Replied by josh on topic D2 injector problem

Could the rack be stuck?

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smokiejoe70
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2 years 6 months ago #236477 by smokiejoe70

Replied by smokiejoe70 on topic D2 injector problem

How much pressure does the transfer pump.have to produce minimum to open the injectors. I had it running for about 5 seconds but it died and won't restart.

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Fat Dan
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2 years 6 months ago #236478 by Fat Dan

Replied by Fat Dan on topic D2 injector problem

smokiejoe70 wrote:
How much pressure does the transfer pump.have to produce minimum to open the injectors. I had it running for about 5 seconds but it died and won't restart.

The transfer pump puts out just a few pounds of pressure about like an auto, I'd guess, 5 to 8psi. A quick check you can use a temp gravity feed tank or an electric fuel pump that should be of pressure.
Good luck

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