Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 1977 Chevy K20: Engine Suffers from Hesitation/Power Loss When In Drive
View Single Post
  #34 (permalink)  
Old 02-19-2012, 04:45 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: 2,287
Wiki Edits: 132

Thanks: 101
Thanked 24 Times in 17 Posts
A note on the video in the previous post:

- At the very beginning, the gauge is already at around 5 psi, most likely due to the priming of the accelerator pump. It was at zero when recording was begun but the parts during which the truck was not running were cut out to save time.

- The fuel pressure is seen dropping slightly as the engine is heard revving at the 3:38, 3:52 and 4:12 marks.



If I remember correctly, the fuel pressure should be 5 psi. Is that right? If so, how should I lower it from 7 psi?
Reply With Quote