Injector pump update

RayP(MI) · Oct 6, 2021

Thanks to dieseltech, and a old bearded guy on utube, I got it opened up, replaced out o rings on throttle and kill shafts. Think I got it back together right. Now to wait 24 hours for gasket seal to dry, before I try it out.

Fritz Maurer · Oct 6, 2021

Have an assistant standing by to clap a piece of wood over the intake manifold.
If necessary.

RayP(MI) · Oct 6, 2021

Good idea.

used red MN · Oct 6, 2021

Do not know much about CAV pumps but did a pump man actually recommend using sealer on a gasket on a pump?

RayP(MI) · Oct 6, 2021

Top cover mates with bottom half just metal to flat metal. When I took it off, there was an orange something on the mating surfaces. I couldn't determine if it was a very thin cardboard, or some sort of sealer compound. Scraped off with finger nail. I assumed orange permatex or similar.

Dieseltech · Oct 6, 2021

NO sealer should be used on the cover gasket. Cover does NOT seal on pump WITHOUT a gasket..

RayP(MI) · Oct 7, 2021

Opened fuel valve at tank, let it set for an hour, and it fired right up. No leaks observed. We'll see what it looks like in ther morning.

Mr Dieseltech. Thank you for your input. I was extremely careful in application of sealant. Dont think I got any inside the unit.
I assume there is a cute little gasket in the kit? I didn't have that. Had to make due with four 49cent o rings from ace hardware.

Dieseltech · Oct 7, 2021

What you scraped off with your fingernail was the original thin cover gasket Ill bet, CAV DPA pumps have used a gasket there since day one, they were never metal to metal.

Injector pump update

RayP(MI)

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Fritz Maurer

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RayP(MI)

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used red MN

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RayP(MI)

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Dieseltech

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RayP(MI)

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Dieseltech

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