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Author Topic: Thermoquad - what to do  (Read 1434 times)

Stan Paralikis

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Thermoquad - what to do
« on: August 08, 2008, 12:04:27 PM »

I have an extra Thermoquad sitting on the bench now as we speak (thanks, Lance).  Right now, The Nyb is averaging about 9 MPG and it's not exactly the smoothest running 440.
I haven't touched the engine since she came home to papa after sitting for ten years in a museum. The next phase for The Nyb is a complete and thorough A-Z tuneup.    I'm trying to figure out what to do about the Thermoquad as part of the tuneup.Commando12008-08-08 17:07:22

Ken

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Thermoquad - what to do
« Reply #1 on: August 08, 2008, 02:17:23 PM »

#2  You can do it and do it right. 

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Matt Aker

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Thermoquad - what to do
« Reply #2 on: August 08, 2008, 02:49:16 PM »

TQ's aren't too difficult to rebuild.  They're a little more involved than an AFB, but I've rebuilt a few TQ's with no issues and good results.
 
You can do it Stan!
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Steve

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Thermoquad - what to do
« Reply #3 on: August 08, 2008, 03:23:46 PM »

Corey could use a few bucks.  He knows TQ's. . . He did a great job on a carb for me last year and I have 3 to send him.  One is for him to keep.  Send it out to him!  He wasn't expensive either.
 
Which car is this?
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Brian

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Thermoquad - what to do
« Reply #4 on: August 08, 2008, 09:53:36 PM »

Get a rebuild kit and give it a redo...they are great carb once set-up.
 
They are, as stated above, a little more involved than the AVS/AFB carters but they have a lot more fine tunning available with basic adjustments.  
 
Just make sure you follow the directions to the letter adn millimeter when adjusting the linkage and other rod settings and suck and you should have very few problems if any.
 
 
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Brian

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Stan Paralikis

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Thermoquad - what to do
« Reply #5 on: August 09, 2008, 03:48:24 AM »

Quote from: POLARACO
Corey could use a few bucks.  He knows TQ's. . . He did a great job on a carb for me last year and I have 3 to send him.  One is for him to keep.  Send it out to him!  He wasn't expensive either.
I didn't know that.
Corey: give me the info I need to send it off to you.
I really liked this part: "He wasn't expensive either
This is for The Nyb. The '76 white one.
NYB #2 is going to a new home I think soon....

Snotty

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Thermoquad - what to do
« Reply #6 on: August 09, 2008, 06:01:45 PM »

I'm the contrarion here.  The key phrase involving a TQ is "when they're set up right."
 
Go with an Eddy and have no more troubles.
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Brian

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Thermoquad - what to do
« Reply #7 on: August 09, 2008, 06:30:49 PM »

Quote from: Snotty
I'm the contrarion here.  The key phrase involving a TQ is "when they're set up right."
 
But you can't really set one up properly until it's on a running motor...I have bought "reman" units that wouldn't even get me out of the driveway...had to pull them apart and reset everything to stock setting, then I could adjust it to the motor.
 
Both my 360 and my 440 run like they have EFI...the cars start with one or two pumps in the morning then run strong and smooth through the choke cycle then drop off when warmed up  and run like a champ all day long.....
 
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Brian

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Stan Paralikis

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Thermoquad - what to do
« Reply #8 on: August 10, 2008, 01:42:10 AM »

Quote from: thrashingcows
Quote from: Snotty
I'm the contrarion here.  The key phrase involving a TQ is "when they're set up right."  
 But you can't really set one up properly until it's on a running motor...I
BINGO!
I have bought enough Holleys (the good years) and Eddies over the years to put someone's kid through college.
And I have yet to have one run smoothly straight out of the box.

Steve

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Thermoquad - what to do
« Reply #9 on: August 10, 2008, 03:56:10 AM »

Or the Holly last the life of the motor
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Leaburn Patey

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Thermoquad - what to do
« Reply #10 on: August 10, 2008, 05:33:40 AM »

As much as I love the performance and fuel economy of a Thermoquad,most are 30 + years old and getting a really good one out of the box is a crap shoot. 
The most desirable TQ would be the 73-74 850 CFM big block ones that do not have the LeanBurn crap on them..
Plus they have brass floats and are set to run at 14:1 a/f mixture.
The LeanBurn TQ's are set up to run a super lean 18:1 a/f,and have a funky idle curcuit.
TQ's are easy to set up,yet they are the most misunderstood carbs out there.If not built and set up right,they can give you migrains.
My choice would be the Edelbrock carb.Get one brandy new,easy set up and go!
 
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Stitcherbob

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Thermoquad - what to do
« Reply #11 on: August 10, 2008, 06:58:05 AM »

Nuthin like the sound of a TQ at full throttle!

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Corey

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Thermoquad - what to do
« Reply #12 on: August 10, 2008, 05:45:35 PM »

All i have to say is that before the fury roast i took  my car out for a run with the TQ i have on it and i tell you what talk about thottle response it was great and the car never kicked down i would go from like 65 to 90 in a mater of seconds and i figured i would have to have the tranny kick down to get that.
 
 
BTW i noticed the poll was missing one more response.
 
stinger11702008-08-10 22:48:12
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Snotty

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Thermoquad - what to do
« Reply #13 on: August 10, 2008, 05:47:56 PM »

Oh, I don't know; a Quadrojet sounds good.  However, I don't want a carb to sound good, I want it to run good.  I've had better luck with Eddy's than with any stock carb, period.
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Stan Paralikis

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Thermoquad - what to do
« Reply #14 on: August 11, 2008, 01:22:18 AM »

I talked with a previously mentioned Fins member and I'm going to send it off to him.
I'll plop it on and see how she runs.  If it's as good as new, he'll have my utmost gratitude.
If it's a "stumbler", I'll "out" him in front of everyone. 


Just kidding.  Seriously, I appreciate how everyone here chips in to help each other out.

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