Manual Choke - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gus67 · 02-12-2007, 09:58 PM

Just wondering if you guys changed out the manual choke to automatic choke, on your trucks. Or what is the best thing to do.? Any opinions will help

*rage'nrat638* · 02-12-2007, 10:04 PM

well you can install this kind of hooky set up with a stock carb
http://www.carburetion.com/quadrajet.asp

or you can get a 75 truck carb with a hot tube choke and convert it

*rage'nrat638* · 02-12-2007, 10:06 PM

this is the stock spring box set-up

**oldgold70c10** · 02-12-2007, 10:07 PM

Eventually, when I get the q-jet installed, I am going to go manual choke. The 2-barrel I'm using now has the later style auto choke and it usually works good (2GC). I've had problems with the auto choke that have the coil mounted on the manifold (2GV type); the later kind mounted to the carb works much better. What kind of carb are you using?

gus67 · 02-12-2007, 10:09 PM

it's the original single barrel carb that's in their. rochester.

**oldgold70c10** · 02-12-2007, 10:22 PM

Quote:

Originally Posted by gus67

it's the original single barrel carb that's in their. rochester.

Might have to go to a salvage yard and find a later 1 barrel, say from a mid 70's straight 6 truck.

gus67 · 02-12-2007, 10:25 PM

i'm in california so is manual choke really that necessary, or should i just change it out completely.

**oldgold70c10** · 02-12-2007, 10:31 PM

Quote:

Originally Posted by gus67

i'm in california so is manual choke really that necessary, or should i just change it out completely.

If it is annoying to use the manual chike, then I'd say replace it with an auto choke. But if it stays warm enough (shouldn't have to use the choke if it is 60-65 degrees or warmer) and you don't have to use it, then leave it in. Have you been having trouble with the carb and thinking about upgrading?

gus67 · 02-12-2007, 10:35 PM

actually i'm in the process of restoring it, and just wanted to get informaiton ahead of time so I can plan ahead. so might be easier just to rebuild it and leave it as is.

Shyguy · 02-12-2007, 10:47 PM

My son tells me that a well tuned engine does not require a choke, so he does not have one on his 70 C-10 with a 350 and a Holley carb.

I on the other hand have a 71 C-10 with a stock 350 with a quadra-jet and have converted it to a manual choke.

Danny - Southeast Missouri

71 C-10
Pretty much stock except for it has a 70 Camaro 350 engine

**oldgold70c10** · 02-12-2007, 10:49 PM

Quote:

Originally Posted by gus67

actually i'm in the process of restoring it, and just wanted to get informaiton ahead of time so I can plan ahead. so might be easier just to rebuild it and leave it as is.

What kind of engine have you? I'm assuming a straight 6 since you've got a 1-barrel.

If you wanted to convert to an auto choke, the easiest thing to do would be to get a mid 70's 1 barrel with the auto choke mechanism mounted to the carb itself. Either way, unless you buy a new carb, you'll probably have to (or want to) do a carb rebuild.

FarmTruk · 02-12-2007, 11:44 PM

Personally, I like the direct action and mechanical goodness of a manual choke. Makes me feel as one with my machine.

Warren · 02-13-2007, 02:25 AM

dont see how if an engine is tuned well it would not need a choke.

An old racer put a manual choke on mine,. it is just a cheap one 25.00cable a bit more expensive would have been better but it works well and I like the fact that I can kick it down to a number of RPMS, whatever Idle I want and leave it there till I want it off.

Should do the same for my Wallywagon, it races till it is good and ready and can't be kicked down till it is ready. That can be adjusted by putting solder onto one part till you get the right amount of weight then it will kick down sooner. May get the mechanic to do that.

Warren

02-12-2007, 09:58 PM	#1
gus67 Registered User Join Date: Jan 2007 Location: Downey,Ca. Posts: 221	Manual Choke Just wondering if you guys changed out the manual choke to automatic choke, on your trucks. Or what is the best thing to do.? Any opinions will help

02-12-2007, 10:04 PM	#2
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: Manual Choke well you can install this kind of hooky set up with a stock carb http://www.carburetion.com/quadrajet.asp or you can get a 75 truck carb with a hot tube choke and convert it Last edited by rage'nrat638; 07-12-2007 at 06:56 AM.

02-12-2007, 10:06 PM	#3
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: Manual Choke this is the stock spring box set-up Last edited by rage'nrat638; 07-12-2007 at 06:56 AM.

02-12-2007, 10:07 PM	#4
oldgold70c10 Who's got steelies? Join Date: Feb 2006 Location: Morrison, Oklahoma Posts: 1,026	Re: Manual Choke Eventually, when I get the q-jet installed, I am going to go manual choke. The 2-barrel I'm using now has the later style auto choke and it usually works good (2GC). I've had problems with the auto choke that have the coil mounted on the manifold (2GV type); the later kind mounted to the carb works much better. What kind of carb are you using? __________________ 1969 C10 LWB W/ 250 I6 & 3spd 1970 C10 with '67 small window cab, 68 front end, blue; 305/TH350, 3.08 limited slip rear end, manual brakes, power steering; & 4-wheel drums-My daily driver. 1975 Chevelle Malibu Classic Coupe 350/th350 mint green 1970 C20 Suburban 350/700R4 4.10 gearing green & white 1978 Big 10 Silverado 350/th350, working ac, 2 tone blue-My summer daily driver 1983 GMC 1500 Sierra 305/SM465 2.73 rear end How to add a trip odometer to your 67-72 stock speedometer How to rebuild your Q-Jet My Truck Page My Youtube Channel

02-12-2007, 10:09 PM	#5
gus67 Registered User Join Date: Jan 2007 Location: Downey,Ca. Posts: 221	Re: Manual Choke it's the original single barrel carb that's in their. rochester. Last edited by gus67; 02-12-2007 at 10:11 PM.

02-12-2007, 10:25 PM	#7
gus67 Registered User Join Date: Jan 2007 Location: Downey,Ca. Posts: 221	Re: Manual Choke i'm in california so is manual choke really that necessary, or should i just change it out completely.

02-12-2007, 10:35 PM	#9
gus67 Registered User Join Date: Jan 2007 Location: Downey,Ca. Posts: 221	Re: Manual Choke actually i'm in the process of restoring it, and just wanted to get informaiton ahead of time so I can plan ahead. so might be easier just to rebuild it and leave it as is.

02-12-2007, 10:47 PM	#10
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: Manual Choke My son tells me that a well tuned engine does not require a choke, so he does not have one on his 70 C-10 with a 350 and a Holley carb. I on the other hand have a 71 C-10 with a stock 350 with a quadra-jet and have converted it to a manual choke. Danny - Southeast Missouri 71 C-10 Pretty much stock except for it has a 70 Camaro 350 engine

02-12-2007, 11:44 PM	#12
FarmTruk In Memoriam... Join Date: Nov 2006 Location: Wallburg, NC Posts: 1,216	Re: Manual Choke Personally, I like the direct action and mechanical goodness of a manual choke. Makes me feel as one with my machine. __________________ '68 C10 SWB 307ci 2BBL *FarmTruk Pics Here* *"You know, doing what is right is easy. The problem is knowing what is right."*

02-13-2007, 02:25 AM	#13
Warren Registered User Join Date: Dec 2006 Location: Ontario Posts: 73	Re: Manual Choke dont see how if an engine is tuned well it would not need a choke. An old racer put a manual choke on mine,. it is just a cheap one 25.00cable a bit more expensive would have been better but it works well and I like the fact that I can kick it down to a number of RPMS, whatever Idle I want and leave it there till I want it off. Should do the same for my Wallywagon, it races till it is good and ready and can't be kicked down till it is ready. That can be adjusted by putting solder onto one part till you get the right amount of weight then it will kick down sooner. May get the mechanic to do that. Warren



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