'76 to '86 Oil Pressure Problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevy1966 · 08-27-2017, 05:12 PM

My '76 GMC has had an '86 SBC engine transplant. Here's my problem: I have a mechanical oil pressure gauge which is now plumbed to the oil port on the newer model engine - it works fine. However, I have an electric choke on my Q-jet, a la 1986, which is designed to receive power when the oil pressure switch makes contact indicating the engine is running. Of course in my hybrid setup I don't have an electric oil pressure sensor. Any good solution to this? I really don't want to change my mechanical gauge. Thanks!

geezer#99 · 08-27-2017, 06:16 PM

Run a new 12v supply to your electric choke!
Should be a couple unfused ports on your fuse box.

08-27-2017, 05:12 PM	#1
Chevy1966 Registered User Join Date: Nov 2011 Location: San Luis Obispo, CA Posts: 198	'76 to '86 Oil Pressure Problem My '76 GMC has had an '86 SBC engine transplant. Here's my problem: I have a mechanical oil pressure gauge which is now plumbed to the oil port on the newer model engine - it works fine. However, I have an electric choke on my Q-jet, a la 1986, which is designed to receive power when the oil pressure switch makes contact indicating the engine is running. Of course in my hybrid setup I don't have an electric oil pressure sensor. Any good solution to this? I really don't want to change my mechanical gauge. Thanks! __________________ 66 Custom Camper 327 AC PS PB 66 C20 292 76 C25 Sierra Classic 76 C25 Sierra Grande 76 Camper Special 77 Sierra Grande 02 Suburban - the DD

08-27-2017, 06:16 PM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,512	Re: '76 to '86 Oil Pressure Problem Run a new 12v supply to your electric choke! Should be a couple unfused ports on your fuse box.



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