• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Thermo-Quad question

Jc cooper

Second gear fun!
FBBO Gold Member
Local time
2:00 PM
Joined
Jan 2, 2017
Messages
700
Reaction score
403
Location
Houston tx
476158ED-EA0D-456C-A085-6C7BDB32C46D.jpeg
476158ED-EA0D-456C-A085-6C7BDB32C46D.jpeg
Can anyone identify this on a thermoquad!
 
Yep the idle enrichment system as I do remember them. But just cap it as you did. From what I remember when the eng was cold vacuum would be applied to that valve and it would block an idle air bleed to give a richer mixture when cold and the choke was also on so it was on fast idle. Used a thermal valve in the eng coolant to only send vacuum to the valve when the eng was cold and once it hit a certain temp the vacuum was bled off and the valve opened an unblocked the air bleed. Ron
 
Auto Transport Service
Back
Top