CARTER THERMOQUAD CLUB / MANLEY THERMOQUADS / BOG FIX- AIR DOOR TENSION

[@oscarcatx]

Interesting to see people using the old TQ carb. I worked at Carter till 1980 and was the first assembly line inspector on the TQ. I always thought it was an interesting and very simple design...Funny story, a local parts shop called Carter and asked how much the TQ sold for, as he was offered several for sale. This was before any had even shipped to chrysler, and the "for sale" units had been lowered from the 3rd story assembly line and spirited away by thieves...

[@vincemajestyk9497]

I just rebuilt the one on my '80's Gran Fury 318 and now it runs better than it ever has. Just hit the key, hot or cold start fires right off. I've always used the 2 screwdriver method too, but I did have that tool somewhere. You have to be really careful though, if you just loosen the jam nut that spring unwinds so fast it'll land in the bowl and you gotta take the top off. I need to adjust mine. It's too tight. Some of those emission era carbs were set at 2 1/2 turns or higher. I had a '79 300 and I think that one ran good at 2 turns. The one on my Fury has the 'tamper proof' choke pull-off box so it's a real late one. I've found the biggest thing with these carbs is the 'X' rings that seal the body to the wells deteriorate, sometimes the epoxied wells crack or get loose and they're really sensitive to the float level. I used to have a ton of these carbs. 10 years ago you could buy these all day long for a song. I bought some NOS ones for under $100. A great carb.

[@danbuchner1494]

I have had a few tq carbs i didnt know they had those adjustments I am going to find one and tinker with it thanks for the vid

[@thenorm8489]

loved it....remember the little rubber eraser called TECH

[@carterthermoquadclubmanley1863]

Hahaha....yes

[@robertgee811]

Just got one 1.5 primary its getting rebuilt by.agood rebilder all American carb throwing all holleys away

[@carlinshowalter1806]

Holley junk,Carter good.

[@Mopar440Magnum]

So I adjusted my air door exactly like you said, exactly how you did. It’s a 318 bored .030 over with a 340 six pack cam and 340 heads. You said if you have cams in them add another 1/4-1/2 turn, which would make it 2 turns in my case. It still stumbles when you go to open the throttle. My choke pull off passes the test. What else could it be? It fires right up and idles good. Just stumbles when you go to open the 4 barrels.

[@carterthermoquadclubmanley1863]

Try taking tension off the air door spring buy turning the plug .25 clock wise at time to find the sweet spot. Air door droop may be to low also...it should be @ 0.040 down from the stop. If the engine "chuges" door is too tight. If the engine "lies down" then takes off...door is too loose.

[@carterthermoquadclubmanley1863]

The accel pump nozzles may be to big/small as well. Accel pump may be set to low to cover the transition period. Rod tree may be set wrong. Did you bush the primary throttle shaft bores?

[@warmblood58]

My thermoquad as fitted to '83 dodge truck is losing fuel in bowl after several days sitting - would love to know/see how to tackle how and where this is draining ie known drain leaks-thanks

[@carterthermoquadclubmanley1863]

Draining can be a cracked bowl, x-rings needs replacing, or the fuel bowl wells are leaking. The bowl needs to be inspected very closely

[@warmblood58]

@@carterthermoquadclubmanley1863 Thank you! Do you recommend the phenolic body/ bowl reproduction replacements?

[@carterthermoquadclubmanley1863]

@@warmblood58 new is not available.. m.me/ken.manley.545 My messenger contact. We can go from there

[@MoparMan-ff8fb]

how do you properly adjust the set screw for the metering rods ? I also follow your thermoquad group on facebook

[@carterthermoquadclubmanley1863]

Loose rule of thumb...throttle wide open and tree top is a few thou below the retainer. Correct way...push down on tree, turn screw counter clockwise til you feel zero drop... Turn screw clockwise and the moment you feel the tree lift, turn screw 1.5 turns more.

[@bobc.5698]

Would it be easy to make one of these a manual choke?

[@carterthermoquadclubmanley1863]

The only thing stopping you is your imagination...

[@boxer71c55]

I just rebuilt my first and now it bogs under a load. Will this tip help in my case? Thanks.

[@carterthermoquadclubmanley1863]

The devil is in the details...ensure the passages in the lid are clear...thecsecondary sir door may be set too soft. Ensure the accel pump squirts with the slightest throttle movement

[@boxer71c55]

@@carterthermoquadclubmanley1863 ok thanks for the help

[@tunnelportterror]

Uh....that's 3/4 turn, not 1-1/2, you're counting a half turn, as a full turn