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| | | | Joined: Aug 2007 Posts: 116 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 116 | I have my 261 up and running... I timed it at TDC according to the book. Idling about 600- 650. Idles great... when i step on the pedal... sounds great... the problem is when i back off the pedal... Does anyone have any ideas?
I was thinking maybe a vacuum leak but that would be on acceleration i thought...
Any help?
Thanks
Matt
http://www.flickr.com/photos/50657267@N08/sets/
1939 1/2 ton Resto-mod
1937 1 1/2 ton Is in the driveway
| | | | | Joined: Aug 2007 Posts: 116 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 116 | Carter/weber 2 barrels forgot to add that
Matt
http://www.flickr.com/photos/50657267@N08/sets/
1939 1/2 ton Resto-mod
1937 1 1/2 ton Is in the driveway
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Matt,
Did you try to set the timing to maximum vacuum at idle?
Can you get your idle down to 500 rpm?
| | | | | Joined: Aug 2007 Posts: 116 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 116 | Tim
What is maximum vacuum idle?
im sure i can get it down to 500... Im guessing thats where it should be?
Thanks
Matt
http://www.flickr.com/photos/50657267@N08/sets/
1939 1/2 ton Resto-mod
1937 1 1/2 ton Is in the driveway
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Matt,
Maximum vacuum at idle is the maximum vacuum reading you get as you slowly rotate the distributor in both directions.
You first set the idle speed. The idle speed might increase as a result of the above operation. So, you may want to reset the idle speed and repeat the operation in the first paragraph, above.
Attach the vacuum gauge to the wiper-motor vacuum-port on the intake manifold.
| | | | | Joined: Aug 2007 Posts: 116 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 116 | Thanks tim..... I will try
Matt
http://www.flickr.com/photos/50657267@N08/sets/
1939 1/2 ton Resto-mod
1937 1 1/2 ton Is in the driveway
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