Results 1 to 13 of 13
Thread: choke sticks...
-
09-05-2009 #1
Starting The Transformation
- Join Date
- Aug 2009
- Location
- Langley BC, Canada
- Posts
- 264
choke sticks...
I have a 750 vac sec Speed Demon and after a drive and the motor cools the choke sticks open. Any thoughts?.
-
09-06-2009 #2
Registered User
- Join Date
- Aug 2008
- Location
- Houston, TX
- Posts
- 232
On the speed demon, it is possible for the choke linkage to hang up on the air cleaner housing flange. It may be necessary to use a ball peen hammer or such tool to modify the flange.
09-06-2009 #3
Starting The Transformation
- Join Date
- Aug 2009
- Location
- Langley BC, Canada
- Posts
- 264
By air cleaner housing flange do you mean the lip that the inner part of the air cleaner bottom goes around?
09-10-2009 #4
Registered User
- Join Date
- Aug 2008
- Location
- Houston, TX
- Posts
- 232
No I'm talking about the air cleaner bottom itself, the flange that mates with the carburetor gets in the way of the choke linkage.
09-11-2009 #5
Starting The Transformation
- Join Date
- Aug 2009
- Location
- Langley BC, Canada
- Posts
- 264
Ah I had already done that but it even sticks with the air cleaner off.
09-11-2009 #6
Starting The Transformation
- Join Date
- Nov 2006
- Location
- NH
- Posts
- 269
The fast idle cam linkage may be sticking but a properly tuned carb will not require a choke.
10-06-2009 #7
Registered User
- Join Date
- Oct 2006
- Location
- Pittsburgh Pa.
- Posts
- 650
You could remove the choke all together. You really don't need it...
10-12-2009 #8
Registered User
- Join Date
- Sep 2009
- Location
- Charleston, SC
- Posts
- 140
Is it an electric or manual choke?
89 Supercharged Saleen 352 rwhp, 93 Mustang LX 347 stroker 420 rwhp daily driver, 78 Firebird, 69 Opel Kadett Rallye ex-SCCA track car..."everyone needs to own a 4-bbl 4 cylinder once"
10-12-2009 #9
Starting The Transformation
- Join Date
- Aug 2009
- Location
- Langley BC, Canada
- Posts
- 264
It is an electric choke.
10-12-2009 #10
Registered User
- Join Date
- Aug 2004
- Location
- Rustburg, Virginia
- Posts
- 3,436
When it's cold, you need to stab the throttle one time to set the choke before you turn the key. Stab it one time and if the choke is set right, it should close up and keep that first squirt nice and rich for the motor to fire off ice cold.
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
10-17-2009 #11
Registered User
- Join Date
- Oct 2007
- Location
- ridgefield ct
- Posts
- 876
how does a properly tuned car not need a choke? that's a pretty blanket statement. maybe if you live in an area with one temp only, but what about New York? here a day could be 80 with the night at 40*f
work in progress--for the next 10 years.
1987 monte carlo ss 383ci, 9.7:1, xe274 cam, vortec heads, 200r4, 3.73 posi.
10-18-2009 #12
Registered User
- Join Date
- Oct 2006
- Location
- Pittsburgh Pa.
- Posts
- 650
I live in Pittsburgh........................................ .................................................. ........................................^
I don't run a choke on my 83 Olds 98 either. It sits outside all the time..It fires right up in 0 degree weather.. It's been run that way for over 100,000 miles...
A choke is for that lady in a hurry who starts the car up and takes off 10 seconds later... I don't drive any of my cars in that manner..
Your engine will last longer without that raw fuel running down the cyl walls every time the choke thermostat cools, this is especially bad for the hi performance motor with the intake heat exhaust ports blocked off. You will add a few cfm to your carb by removing the choke butterfly..
02-13-2010 #13
Registered User
- Join Date
- Jul 2009
- Location
- Atlanta
- Posts
- 65
Had the same problem with mine--I returned the carb thinking it was a bad carb, come to find out the cable connected to the choke wasn't installed properly.
Reply With Quote
