T/A Six Pack Fuel odor under hood

[Chryco Psycho]

@ things here ,
The newer fuels evaporates more easily .
If the heat crossover through the intake is not blocked off the intake will get very hot & boil the fuel in the carbs
If the car is only driven in warmer weather as most are I recommend blocking the heat crossover port , you will need to remove the intake to do this & I use a piece of the old gasket if it is steel lined to fill the crossover port in the new gaskets .

 

[VillaTA]

Yup. They did adjust the carbs and said that they tightened the fuel lines.

 

[Daves69]

A couple things you might try if not done as yet and you have ruled out everything but carbs.

1st and foremost DO NOT START/RUN engine with outboard rods disconnected. You risk the outboard throttles opening and engine rpm uncontrollable.

After warm up and shutting down........

For the two outboards check each for any leakage with throttle plates wide open........

For all three check for seepage under bowls and pump with clean paper towel strips.........

You could try taping over/plugging the vents temporarily see if the odor diminishes........

 

[VillaTA]

Finally found the source. Rear secondary is dripping near where the fuel line meets the bowl. Can tell if it’s the bowl or the line. Also some evidence of other drips at the other bowls. Can I just tighten, or do I need new bowl seals?

 

[moparlee]

If the leak is at the carb fitting, you can try snugging it up but it may need a new gasket. Generally that gasket is metal. If it is leaking at the fuel line fitting, you can also try to snug that one up too, but it may have a bad flare. Take it apart and use some fine emery cloth on the flare if it looks questionable.

 

[Old Mopar]

time for a new shop, can they follow directions? or are they too smart as there is documentation to set the carbs up properly.

 

[fasjac]

Use only a line wrench on those!

 

[70chall440]

time for a new shop, can they follow directions? or are they too smart as there is documentation to set the carbs up properly.

Or learn how to work on your own car.... It is rare to find a "shop" that knows anything about vintage muscle cars let alone Mopar muscle cars especially multi carb cars. Therefore if you want to own and enjoy one of these cars you really need to know how to work on them to keep them running right.

If working on a car especially a classic/vintage car is something that doesn't interest you, then be prepared to keep pouring money into whatever you have and unless you can hire someone who understands them, be prepared for disappointment and failure, you might want to move on to a more modern vehicle.

 

[Daves69]

For the inlet fitting before the fuel line goes on, this wrench is available..........

Wrench 12 point for Holley fuel inlet fitting 26-26 +2 nylon gaskets like 26-102 | eBay

Find many great new & used options and get the best deals for Wrench 12 point for Holley fuel inlet fitting 26-26 +2 nylon gaskets like 26-102 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[fasjac]

For the inlet fitting before the fuel line goes on, this wrench is available..........

https://www.ebay.com/itm/302791838956?chn=ps[/URL

http://Indeed!

 

[Chryco Psycho]

if you are tightening the 1" fitting into the carb loosen the line first otherwise you are twisting the line

 

[Moparparts]

Those are 69 Valve covers, 70 has a different breather and it is on the passengers side

 

[VillaTA]

Looks like I have three leaks, one for each carb. Rear secondary looks to the the bowl, front carb too. Middle looks to be the fuel line. Do I need to send for new gaskets?

 

[VillaTA]

Anyone know the part number or have a link for the fuel inlet gaskets for the six pack? any recommendation? I feel like the pro max lines with aluminum fittings would be an upgrade, but I’ve read complaints on other sites about them. Lots of people went back to stock style.

 

[fasjac]

I have tried the promax lines but, did not route correctly to clear the front diaphragm shaft for my comfort. It’s quality stuff though. My top end is dissembled right now and will be using the factory lines when it’s put back ( changing the comp cam/lifters). Another story! I did not have any fuel leaks with the neoprene gaskets to carbs or connections. Just didn’t like how it laid.
I prefer the factory lines.
The 3/8 steel lines are perfect imo. Use a line wrench for these. And use Chryco’s advice on the 1” fitting.

 

[Daves69]

Anyone know the part number or have a link for the fuel inlet gaskets for the six pack? any recommendation? I feel like the pro max lines with aluminum fittings would be an upgrade, but I’ve read complaints on other sites about them. Lots of people went back to stock style.

Chicago Carburetor

 

[jt4406]

Chicago Carburetor

View attachment 97002

Summit has these: Holley 108-1 Holley Fuel Bowl Inlet Fitting Gaskets | Summit Racing

and Grainger has these: https://www.grainger.com/product/PA...uery=5wrw2&searchBar=true&tier=Not+Applicable

3 of the gaskets and a about 10 or12 of the flare nut washers (helps to have extra) and you will solve your problem (provided you don't have a stripped fuel bowl). jess in ky

 

[VillaTA]

So I was driving the car this afternoon.After I shut the car off, I was looking at the rear outboard carb as, it has the loose inlet. As I had my head bent down trying to see if my wrench would fit on the inlet, I noticed visible fumes coming out of only the front outboard vent. I thought it was weird, so. I put my finger over the I got a bubbling/boiling sound until I took my finger off, I’d this normal?