C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Carburetor question for a tripower HELP quick!!!!!!!

Thread Tools
 
Search this Thread
 
Old May 28, 2004 | 11:11 AM
  #1  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Carburetor question for a tripower HELP quick!!!!!!!

I am purchasing a 1969 tripower L-71 convertible, and I have been longing for a orange one for a few years, well finally it came, and of course a few person jump at the car, I am in Maine and the car is in Indiana, and as a Navy Doc, I do not have the ability to go see it, so the guy see dozens of photos and answer more question then I can imagine and then after all the questions are answered
In the questions I asked how the car starts from a dead cold, and he said right up, one crank
Then I forgot I asked that question and asked again then he said it starts up one crank, after you pump the gas pedal 25 times, from a dead cold
Then it raised questions with fuel pump, carbs, etc
all he said were perfect, he drive the car with confidence and he said it is perfect
well then pumping thing was bothering me
so I did more research, asked about spark plugs, rebuilt carb etc
then I was looking at the photos again, just looking and then I saw something
I looked at the fuel line(stainless steel) on the drivers side comes up to one brass block and a fuel line goes to the first carb, then the second block, and I DO NOT SEE A FUEL LINE TO THE PRIMARY CENTER CARB, the the fuel line continues
the guy is away till tonight
how could that be anyone help me, big investment do not want to make a mistake LONG DISTANCES
Reply
Old May 28, 2004 | 11:42 AM
  #2  
PRNDL's Avatar
PRNDL
Team Owner
20 Year Member
 
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

big investment do not want to make a mistake LONG DISTANCES
:iagree: No amount of pictures and questions will substitute for a personal inspection by you or your rep! don't know about the tripower setup.... I guess i should, I have looked at enough... but I don't. Sounds like a great car. :)
Reply
Old May 28, 2004 | 11:51 AM
  #3  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (PRND21)

do peope make modifications
Reply
Old May 28, 2004 | 11:53 AM
  #4  
comp's Avatar
comp
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

where in IN. is it ????
Reply
Old May 28, 2004 | 12:07 PM
  #5  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (comp)

s. beech grove
Reply
Old May 28, 2004 | 12:10 PM
  #6  
comp's Avatar
comp
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

sorry i thought i my be close enough :nonod:
Reply
Old May 28, 2004 | 12:12 PM
  #7  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (comp)

need somebidy to give me info on tripower fuel lines, why would the center one be missing to carb
Reply
Old May 28, 2004 | 12:23 PM
  #8  
LemansBlue68's Avatar
LemansBlue68
Melting Slicks
15 Year Member
 
Joined: May 2001
Posts: 2,131
Likes: 4
From: May help you? You can sure as hell try!
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

The fact that you have to pump the gas so many times to get the car to start leads me to believe that the choke is not adjusted properly. Pumping the accelerator is squirting gas into the intake supplying a the rich mixture needed to start the engine which is compensating for a (possibly) malfunctioning choke. I would not consider this a big issue because it is a quick fix.

As the others said, there's no substitute for looking at the car in person. Perhaps you could wire him a deposit to hold the car until you get to see it personally or can have someone knowledgeable look at it for you. Sounds like the car you want, don't let a minor issue stand in the way of your dream.
I don't think Monaco Orange L-71 'verts are so common that you can be overly picky, but I understand your caution.

One other thing, perhaps you can have the owner send you more detailed pictures of the tri-power. I cannot believe that the car will even run without a fuel line running to the center carb. That is the MAIN carb. It is the only one that functions at idle. I'm not a tripower expert but I believe it is the only carb that is equipped with an idle circuit. The outboard carbs are secondary and are meant to function only when the engine is near maximum output and requires the additional airflow. I have seen some tri-powers that have been modified to add a mechanical throttle linkage. The vacuum pods are generally missing in that case. IMO the mechanical linkage is not a good idea for the street.


[Modified by LemansBlue68, 11:33 AM 5/28/2004]
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old May 28, 2004 | 12:30 PM
  #9  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (LemansBlue68)

how about the fuel line issue
Reply
Old May 28, 2004 | 06:27 PM
  #10  
RHD '68 L89's Avatar
RHD '68 L89
Drifting
15 Year Member
 
Joined: May 2003
Posts: 1,634
Likes: 2
From: Melbourne, Victoria, Australia, the World
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

The engine will not idle without fuel to the centre carb.
If it definitely has no fuel line to the centre it may have a modification to take Chrysler fuel bowl which has the fuel inlet on the other side. Put a depsit on it with a disclaimer that it the purchase is subject to inspection. Then find a Forum member or mechanic to inspect.
Best of luck!
Reply
Old May 29, 2004 | 11:16 AM
  #11  
gkvetteuno's Avatar
gkvetteuno
Burning Brakes
20 Year Member
Veteran: National Guard
Liked
Community Favorite
 
Joined: Feb 2001
Posts: 947
Likes: 46
From: Saint Cloud Florida
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (TFranchini)

You can ask him if they are the correct carbs, the 69's came with Holley R3659 for the front and rear. The center was a Holley R4055 for the 4-sp and Holley R4056 for automatic. I am sure this is an expensive car and hard to find. The carbs are not hard to rebuild and the entire set-up can be restored for $600 or so from reputable restorers. Don't let the car of choice get away because of this. Its not a real expensive fix compared to some other expenses you could encounter.
Reply
Old May 29, 2004 | 11:55 AM
  #12  
Guest
Guest
 
Posts: n/a
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (gkvetteuno)

Could you send the photos of the carb/fuel line set up? G.
Reply
Old May 29, 2004 | 02:24 PM
  #13  
TFranchini's Avatar
TFranchini
Thread Starter
Instructor
10 Year Member
 
Joined: May 1999
Posts: 237
Likes: 0
From: Damariscotta ME
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (geo par)

[IMG][/IMG] [IMG][/IMG]
Reply
Old May 29, 2004 | 06:04 PM
  #14  
PRNDL's Avatar
PRNDL
Team Owner
20 Year Member
 
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Default Re: Carburetor question for a tripower HELP quick!!!!!!! (RHD '68 L89)

it may have a modification to take Chrysler fuel bowl which has the fuel inlet on the other side.
funny, i just learned that today. Was talking to a guy with a 70 Challenger with 340 "6 pack". He told me the 6 pack was the same 3X2 carbs used on the vette tripower except the fuel inlets were on the other side! :)
Reply

Get notified of new replies

To Carburetor question for a tripower HELP quick!!!!!!!





All times are GMT -4. The time now is 02:47 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE