Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Nu-Relics Power Windows
American Auto Wire Hellwig Products IncPerformance Rod & Custom
Danchuk Catalog



Username Post: 216 dual carbs no power        (Topic#374161)
hdbob5454 
Newbie
Posts: 17

Reg: 11-29-23
12-13-23 05:31 PM - Post#2864912    

just got a 40 it has dual carbs and no power starts up fine but feels like running out of gas, vacuum leak?



Edited by Tony on 12-13-23 08:12 PM. Reason for edit: Moved to correct forum

 


Shepherd 
Valued Contributor
Posts: 3275

Loc: Lake George, NY
Reg: 11-11-15
12-14-23 02:44 PM - Post#2864948    
    In response to hdbob5454

From here tough diagnosis, fuel delivery issues, carb issues, general condition of engine and tune. Start with the basics, sufficient fuel delivery to carbs.



Edited by Shepherd on 12-14-23 03:08 PM. Reason for edit: No reason given.

 
1971BB427 
Contributor
Posts: 590

Loc: Portland,Or
Reg: 12-06-09
12-15-23 08:32 AM - Post#2864966    
    In response to hdbob5454

Lot of things can cause a lack of power. A vacuum leak usually makes an engine run at a higher idle than normal. I'd be checking point gap, and timing also. And really go through a complete tuneup.
If that doesn't help then need to check fuel pump pressure, and start looking at the dual carbs to make sure accelerator pumps are giving a good squirt of gas when the throttle is opened.


1969 Suburban 2wd 350
1939 Chevy pass. coupe 350/700R4
1937 Austin gasser 327/TH350


 


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

490 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.136 seconds.   Total Queries: 15   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 03:40 PM
Top