Early Quadrajet APT plug - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rpmerf · 06-14-2019, 08:23 PM

How do you remove the APT plug on early (1973) Quadrajets? should I drill it and use a pick, or go at it with dremel tool?

**WorkinLonghorn** · 06-14-2019, 08:33 PM

I never had one of those to my knowledge but there is this info;

https://quadrajetpower.com/apt-plug/

rpmerf · 06-17-2019, 08:14 AM

Quote:

Originally Posted by WorkinLonghorn

I never had one of those to my knowledge but there is this info;

https://quadrajetpower.com/apt-plug/

Thank you. That plug is for the later Quadrajets (75ish and up) with the APT at the top. Earlier ones have it under the fuel filter.

Quote:

Originally Posted by geezer#99

Easiest way is to drill a couple tiny holes beside the plug and lever it out.

I suppose with a Dremel you could clearance one side easily too.
You could find a lot of crud in there and the screw not working.

Thanks. Sounds good, pretty much attack it enough to pry it. I am half expecting the screw to be frozen up in there

geezer#99 · 06-14-2019, 09:11 PM

Easiest way is to drill a couple tiny holes beside the plug and lever it out.

I suppose with a Dremel you could clearance one side easily too.
You could find a lot of crud in there and the screw not working.

rpmerf · 07-03-2019, 12:23 PM

I got the plug out. It was easy. Hit it with a 1/8" drill bit and it pried right out. Screw is frozen. Even let it soak in PB, ATF, and Acetone. Maybe next time the engine is good and hot I will see if it moves.

06-14-2019, 08:23 PM	#1
rpmerf Registered User Join Date: Feb 2011 Location: Parkville, MD Posts: 1,024	Early Quadrajet APT plug How do you remove the APT plug on early (1973) Quadrajets? should I drill it and use a pick, or go at it with dremel tool? __________________ 1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z

06-14-2019, 08:33 PM	#2
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,855	Re: Early Quadrajet APT plug I never had one of those to my knowledge but there is this info; https://quadrajetpower.com/apt-plug/ __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent.

06-14-2019, 09:11 PM	#4
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,510	Re: Early Quadrajet APT plug Easiest way is to drill a couple tiny holes beside the plug and lever it out. I suppose with a Dremel you could clearance one side easily too. You could find a lot of crud in there and the screw not working. Last edited by geezer#99; 06-14-2019 at 09:18 PM.

07-03-2019, 12:23 PM	#5
rpmerf Registered User Join Date: Feb 2011 Location: Parkville, MD Posts: 1,024	Re: Early Quadrajet APT plug I got the plug out. It was easy. Hit it with a 1/8" drill bit and it pried right out. Screw is frozen. Even let it soak in PB, ATF, and Acetone. Maybe next time the engine is good and hot I will see if it moves. __________________ 1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z



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