Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Re: School me on carb spacers... [Re: newbee69] #187644
01/08/09 08:21 PM
01/08/09 08:21 PM
Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67 Offline
master
BSB67  Offline
master

Joined: Feb 2005
Posts: 4,313
Prospect, PA
Quote:

Well, Ive got no vac leaks.




Can you share with us how you determined this?

Re: School me on carb spacers... [Re: newbee69] #187645
01/08/09 08:37 PM
01/08/09 08:37 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:

Initial 14, adv. 36, all in 3000.


all good there


live every 24 hour block of time like it's your last day on earth
Re: School me on carb spacers... [Re: BSB67] #187646
01/08/09 09:20 PM
01/08/09 09:20 PM
Joined: Feb 2007
Posts: 908
North Chicagoland
N
newbee69 Offline OP
super stock
newbee69  Offline OP
super stock
N

Joined: Feb 2007
Posts: 908
North Chicagoland
Quote:

Quote:

Well, Ive got no vac leaks.




Can you share with us how you determined this?




Well, I inspected all hoses. They seemed good.
Then I made sure all the bolts were torqued to spec.
Then I sprayed carb cleaner by the intake gasket, carb to intake, and anywhere else where I thought a leak could be. No change in idle.
I know its not full proof, but what else could I do?
Just as info, when I hooked up the gauge, Im running at about 14.7. Also, when I cover up the secondary air bleeds, there is no change in idle.
I am idling at about 1000 rpm and when I drop it in gear it goes to about 850.
Does this all sound good to you guys?

Re: School me on carb spacers... [Re: newbee69] #187647
01/08/09 09:39 PM
01/08/09 09:39 PM
Joined: Jan 2003
Posts: 3,905
Minnesota
3twos Offline
master
3twos  Offline
master

Joined: Jan 2003
Posts: 3,905
Minnesota
What is your engine and is it built up much from stock?


Al & Sheila
Re: School me on carb spacers... [Re: newbee69] #187648
01/08/09 09:44 PM
01/08/09 09:44 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
When you move throttle there is a nice(immediate) steady stream of gas? float level is correct(at bottom of sight plug) What jets are in there? Are your end carbs are vacuum activated? Suggestions (1) disconnect/plug the vac hoses to the end carbs to isolate them from the center carb so we can concentrate on fixing the one center primary carb & (2) richen up the center carb jets 4-6 sizes & see what happens. Holler back when you can. PS I am not sure if plugging the vac lines is needed or will help us but I do want to isolate the center carb to narrow down where the problem is & for sure richen up the center carb for a tryout. Almost forgot what do your plugs look like?


live every 24 hour block of time like it's your last day on earth
Re: School me on carb spacers... [Re: RapidRobert] #187649
01/08/09 10:04 PM
01/08/09 10:04 PM
Joined: Feb 2007
Posts: 908
North Chicagoland
N
newbee69 Offline OP
super stock
newbee69  Offline OP
super stock
N

Joined: Feb 2007
Posts: 908
North Chicagoland
383, basically stock with a mild cam.
float level correct, about center of sight glass.
vacuum operated secondaries with dark springs (the ones that come in later than sooner)

Yeah, I think Im just going to start over.
Set my timing, Set the center carb (try some diff. jets) then go to the secondaries and see where I am then. Ill get back to you guys. Thanks for the help.

BTW, I just pulled a plug and it looks like it may be a little lean. Im going to richen it up and see what happens.

Re: School me on carb spacers... [Re: newbee69] #187650
01/08/09 11:45 PM
01/08/09 11:45 PM
Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67 Offline
master
BSB67  Offline
master

Joined: Feb 2005
Posts: 4,313
Prospect, PA
Quote:

Quote:

Quote:

Well, Ive got no vac leaks.




Can you share with us how you determined this?




Well, I inspected all hoses. They seemed good.
Then I made sure all the bolts were torqued to spec.
Then I sprayed carb cleaner by the intake gasket, carb to intake, and anywhere else where I thought a leak could be. No change in idle.
I know its not full proof, but what else could I do?
Just as info, when I hooked up the gauge, Im running at about 14.7. Also, when I cover up the secondary air bleeds, there is no change in idle.
I am idling at about 1000 rpm and when I drop it in gear it goes to about 850.
Does this all sound good to you guys?




This sounds okay. You should cover up the center carb idle air bleeds to see what the effect is on the idle quality. It should not stay the same.

If the squirters are working properly and the idle mixture screws don't fix the hesitation, I would take the center carb off and go through it focusing on the idle and transition circuit.

Page 2 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1