|
11-06-2002, 07:37 PM
|
#1 |
|
Registered User
Join Date: Oct 2000
Location: St. Johns, Arizona
Posts: 2,660
|
&*%@ Choke!!
This morning I remembered why chokes stink.
This morning at 5:00 it was cold (yes, 2/3 of Arizona actually gets cold and SNOW, had both this year already). Anyway, chokes are great for cold starts. Problem is, the 'burb's choke wouldn't let go! I ended up forcing it to stay open (not so easy to start, but at least it would run). Man, it ran better than it ever did. Come to find out, the stupid choke has been the major source of my 'burb headaches since May!
__________________
my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans? |
|
|
|
11-06-2002, 08:15 PM
|
#2 |
|
Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
|
Is the vaccum choke pull-off operating?, could be diaphram is shot causing a choking, loading up with fuel situation. This unit pulls the choke butterfly open a measured amount once the engine starts, keeping it from choking up with fuel. How about the exhaust crossover in the intake, this heats up choke stove quickly for choke to open, the passage sometimes gets plugged/restricted up with carbon and causes the choke stove to open ever so slowly. The heat riser also aids in this process to force the exhaust through the intake crossover, but it sounds like the vaccum pull-off to me.
__________________
1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
|
|
|
|
11-06-2002, 08:28 PM
|
#3 |
|
Registered User
Join Date: Oct 2000
Location: St. Johns, Arizona
Posts: 2,660
|
No vacuum pull-off. Wait, is it integrated into the vacuum for the secondaries (Q-jet carb)? I don't know about the crossover. It is an aftermarket manifold (Weiand, I think) on a GM crate engine (the guy I bought it from did both swaps). It might not even have a crossover...
I was going to look at the service manual tonight and see if there was some way to adjust the choke.
__________________
my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans? |
|
|
|
|
11-06-2002, 08:57 PM
|
#4 |
|
Registered User
Join Date: May 2000
Location: Victoria, BC, Canada
Posts: 2,410
|
I had a choke problem last year, mechanical choke, right? The butterflys were always slammed shut on startup. I unscrewed it from the intake and then found that the choke coil spring wasn't where it was supposed to be. The spring under the cover that is.
It is supposed to be under some tension to hold the butterflys open and then when the engine warms up it should expand and close the valves, I think. Commit me if I'm wrong, lol. But I just pulled it apart and reset it so it sat a little tighter, forgot which way, but the butterflys should be open about 1/8" when cold.
__________________
1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first. |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
