The following warnings occurred:
Warning [2] Undefined variable $search_thread - Line: 60 - File: showthread.php(1617) : eval()'d code PHP 8.1.31 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/showthread.php(1617) : eval()'d code 60 errorHandler->error_callback
/showthread.php 1617 eval



Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
Erratic running at full revs?

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Linear Mode
Erratic running at full revs?
peter john Offline
Junior Member
**
Joined: Jun 2018 Posts: 2 Threads: 1
Reputation: 0
#1
23-06-2018, 01:49 PM
I am restoring a 1936 A7 two-seater sport. It has a standard two bearing engine. It came fitted with an SU carburetor (1 inch bore at the manifold type 617p) and an electric fuel pump. The problem I have is that when the engine reaches full revs it fades after a few seconds and then picks up again only for the same thing to happen again. I assume it is to do with fuel starvation, but the pump functions well, so I am very puzzled.  Is it the wrong carb for the car, or could it be something else?
I have tried different needle sizes to no effect as well as altering float level etc.
 
Any ideas please…..?!
 


Attached Files Thumbnail(s)
   
Reply


Messages In This Thread
Erratic running at full revs? - by peter john - 23-06-2018, 01:49 PM
RE: Erratic running at full revs? - by Jamie - 23-06-2018, 02:11 PM
RE: Erratic running at full revs? - by bob46320 - 23-06-2018, 03:56 PM
RE: Erratic running at full revs? - by peter john - 23-06-2018, 05:52 PM
RE: Erratic running at full revs? - by dickie65 - 23-06-2018, 06:24 PM
RE: Erratic running at full revs? - by Stumpi - 23-06-2018, 08:10 PM
RE: Erratic running at full revs? - by Bob Culver - 23-06-2018, 10:20 PM
RE: Erratic running at full revs? - by GK5268 - 23-06-2018, 10:59 PM
RE: Erratic running at full revs? - by Chris KC - 24-06-2018, 08:38 AM

Forum Jump:


Users browsing this thread: 3 Guest(s)