Dana air compressor

[loren \(skip\) newhouse]

Hi Manny,
I had a similar problem not too long ago. When I removed the check valve, I found
it to be full of rust and sediment. It was letting the air back flow thru the
compressor. I replace the check valve and that problem was solved. I sorry I can't
give you the part number But I misplaced the info. You can find it in GMC MI
newsletter # 45 and/or # 46. Maybe someone in this group can give you the numbers.
All I can remember is that it's made by W.W. Grainger.
Skip Newhouse
'75 Avion
Western MD

> ...... after an hour driving the compressor was still working. I stopped and the
> pressure was still 70 Checked for leaks but didn't hear any hissing....... I
> checked the connections with soap and water and the compressor running, no
> leaks.
> Manny 73 Custom/ex-Glacier

 

[gary miller]

If the check valve is working properly you should be able to disconnect the Dana
compressor from the check valve, pressurize the tank with your shop compressor,
and there should be NO air leaking back through the check valve where the Dana
connects. Use a soap solution to verify that there is no air leakage: It doesn't
take much.
Gary
'77 Kingsley
North Bend, Oregon Coast (rain)

> In a message dated 1/11/99 11:44:39 AM Pacific Standard Time, lnewh

>
> it to be full of rust and sediment. It was letting the air back flow thru the
> compressor >>
> Thanks for responding Skip.
> I connected my shop compressor through the check valve and the pressure inside
> the tank went up. I guess I can disconnect the water separator to visually
> chek the check valve.
>
> Manny 73 Custom/ex-Glacier

 

[gary miller]

If the check valve is working properly you should be able to disconnect the Dana
compressor from the check valve, pressurize the tank with your shop compressor,
and there should be NO air leaking back through the check valve where the Dana
connects. Use a soap solution to verify that there is no air leakage: It doesn't
take much.
Gary
'77 Kingsley
North Bend, Oregon Coast (rain)

> In a message dated 1/11/99 11:44:39 AM Pacific Standard Time, lnewh

>
> it to be full of rust and sediment. It was letting the air back flow thru the
> compressor >>
> Thanks for responding Skip.
> I connected my shop compressor through the check valve and the pressure inside
> the tank went up. I guess I can disconnect the water separator to visually
> chek the check valve.
>
> Manny 73 Custom/ex-Glacier