Air in fuel lines after sitting over night on 6.2

[Blue Ox]

Well, it looks like Stanadyne has abandoned the product, but I can give you part numbers for the O-ring and screws. Also there's a service bulletin about the screws. I'll have to do more digging on some of this, but the O-ring P/N is 22591 and the screws are P/N 22953

 

[Craig Nedrow]

following this closely as I am replacing the entire fuel system, learning lots, thanks you guys!

 

[plugugly]

thank you blue ox

found these

screw https://www.mycnhstore.com/us/en/caseih/category/hardware/bolts/set-screw/p/A22593

oring https://www.adiesel.com/Stanadyne/STA-22591

27245 | Stanadyne O-Ring Seal

27245 | Stanadyne O-Ring Seal

highwayandheavyparts.com

and some stuff I found on another site

GM parts manual

GMPartsWiki - Parts and Illustration Catalog P&A 52R January 1988

"
My fuel filter base started to leaking the other day, and it is making it hard to start. Have to bleed it now to start everytime. I LOVE THE INTERNET! After countless hours of searching I have found the O-rings and there GM part numbers, so here they are:
Stanadyne model 80:

Vac switch O-ring: 15593307 $4-10

Fuel heater O-ring: 15596600 $4-10

Air bleeder screw: 15535678 (includes new o-ring, its not sold seperatly) $7-8

Earlier style Vac O-ring: 15596608 $10

I can't find the one for the "water in fuel sensor" I think the whole sensor must be purchased and it includes the new (seal/o-ring). $111

Prices are different depending on where parts are bought.

I could only find the stanadyne part number for the heater O-ring: part # 15349 nsn # 5331-01-138-2106
couldn't crossreference the other numbers to the GM part numbers."

 

[Blue Ox]

thank you blue ox

found these

screw https://www.mycnhstore.com/us/en/caseih/category/hardware/bolts/set-screw/p/A22593

oring https://www.adiesel.com/Stanadyne/STA-22591

27245 | Stanadyne O-Ring Seal

27245 | Stanadyne O-Ring Seal

highwayandheavyparts.com

and some stuff I found on another site

GM parts manual

GMPartsWiki - Parts and Illustration Catalog P&A 52R January 1988

"
My fuel filter base started to leaking the other day, and it is making it hard to start. Have to bleed it now to start everytime. I LOVE THE INTERNET! After countless hours of searching I have found the O-rings and there GM part numbers, so here they are:
Stanadyne model 80:

Vac switch O-ring: 15593307 $4-10

Fuel heater O-ring: 15596600 $4-10

Air bleeder screw: 15535678 (includes new o-ring, its not sold seperatly) $7-8

Earlier style Vac O-ring: 15596608 $10

I can't find the one for the "water in fuel sensor" I think the whole sensor must be purchased and it includes the new (seal/o-ring). $111

Prices are different depending on where parts are bought.

I could only find the stanadyne part number for the heater O-ring: part # 15349 nsn # 5331-01-138-2106
couldn't crossreference the other numbers to the GM part numbers."

Would be nice if they had a picture of that first one. It may or may not be correct. A "set screw" it is not.

 

[backwoodsman]

You can get O-rings at any hardware store. All you need to know is the size.

 

[plugugly]

I imagine the material of the o-ring is important. Not sure my local ACE would have they type I need.

 

[backwoodsman]

I imagine the material of the o-ring is important. Not sure my local ACE would have they type I need.

I don't know about Ace, but most would have Viton or equivalent o-rings. If your local hardware store doesn't have them, an auto parts store certainly would.

 

[plugugly]

To close the loop on this for anyone in the future........

struggled with this for a while. Kept getting worse. Decided to swap to a duramax filter. Went with a Dorman piece from Amazon, and couldnt get it to seal. Returned that and went with one from the DMAXX store for a few dollars more. Worked like a charm and problem seems resolved. Very easy to mount to factory bracket from brick filter, just needed to drill a few holes in the bracket for the new filter housing, find some metric bolts to mount new head, and get some adapters and 1/2" fuel line to plumb it up.

sorry, my picture wont load for some reason. says security error