Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1977 Chevy K20: Engine Suffers from Hesitation/Power Loss When In Drive
View Single Post
  #46 (permalink)  
Old 02-21-2012, 01:49 PM
lt1silverhawk's Avatar
lt1silverhawk lt1silverhawk is offline
"But how do it know?"
Last wiki edit: How to rebuild a Rochester Quadrajet 4MV carbureto... Last photo:
Join Date: Mar 2010
Location: Lakewood, CA
Posts: 2,322
Wiki Edits: 132

Thanks: 143
Thanked 30 Times in 22 Posts
Originally Posted by T-bucket23
Choke is taking to long to open. Do you still have a heat riser valve in the exhaust and is it free. The choke should be fully open in about 3 minutes or so and should never close up while running. It appears in the video yours actually looked like it closed a little a few times during the warm up cycle
The truck doesn't have a heat riser valve. And yes, the choke plate does seem like it moves back towards the closed position a few times. Should I try a new choke?
Reply With Quote