No power at 50mph and sooty plugs

[dlrides]

There is a copper conductor that is not a spring and there is a steel spring. Without the spring installed the copper conductor will allow the points to float.

 

 

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[Dave72dt]

100% correct Don.  I've been in the parts business for years and have found it's often necessary to translate and interpret customer's terminology so you both end up talking about the same part.  "second spring" was the description used and understood by most on here as the type points you show in the photos. My point being that not all manufacturers used that design and that members should not assume their points are wrong or missing something if they do not look like your example.  I think if one digs far enough into distributor specs, you'll find a tension rating for the point spring.

[Chrysler49]

It appears I was relying on the copper conductor without the spring. Still haven't had time to put the distributor back on.

I do have a vacuum gauge actually, which should help determine if I do indeed have a vacuum leak somewhere. At what junction on a flathead 6 wolf you hook into?

[Niel Hoback]

Remove the wiper hose and put the gauge hose on in place of it.

[Don Coatney]

Does a 49 crashler have electric or vacuum wipers?

[John Reddie]

My '49 Chrysler Windsor wipers were electric. I always remember that my friend had a '49 Cadillac and it still had vacuum ones.

John R

[Chrysler49]

Adding the spring to the distributor amounted to a lot of success. I once again have power at and above 50 mph, but it now definitely needs timed properly. Has a bit of surging when hanging at 50-55 mph, and it's still spouting black smoke out the tail pipe.

[Dodgeb4ya]

All 40/50's Chryslers are electric wipers.

Gotta tap the intake manifold for correct vacuum.

[desoto1939]

39 chryslerr dodge and Desoto also had electric wipers.  The 39 Ply had vacuum wipers.

 

Rich Hartung

[1950 Special Deluxe]

My 50 Canadian Dodge Special Deluxe has vacuum wipers.

[Chrysler49]

I see there is a plug you can unscrew in the manifold just below the carb. I'd guess that'd be a good place to connect into. Thing is absolutely drinking fuel now. Hard to believe timing being off would cause the thing to burn so much fuel. Exhaust is black and I'd estimate around 5 miles to the gallon if the fuel gauge is somewhat accurate. Idle is definitely off, and I can hear it missing. Won't have access to my timing light for a few more days.

[Frank Elder]

My 50 Canadian Dodge Special Deluxe has vacuum wipers.

Isn't your dodge a rebadged plymouth?

[1950 Special Deluxe]

For the most part yes. There are a few minor differences.

The big one being the 25" head.

[Jeff Balazs]

I see there is a plug you can unscrew in the manifold just below the carb. I'd guess that'd be a good place to connect into. Thing is absolutely drinking fuel now. Hard to believe timing being off would cause the thing to burn so much fuel. Exhaust is black and I'd estimate around 5 miles to the gallon if the fuel gauge is somewhat accurate. Idle is definitely off, and I can hear it missing. Won't have access to my timing light for a few more days.

Take a look at the step up circuit in the carb to see if it is hung up or not working properly. If either the piston is binding or the vacuum port is blocked off that would cause it to run real rich. Ask me how I know.

Jeff

[Dodgeb4ya]

Small gasket under the step up piston?

Edited July 30, 2014 by Dodgeb4ya

[1941Rick]

The wrong base gasket will block the vacuum.

I had to disable the step up valve with my twin carb setup. Cured my over fueling issue.

Could not park the car in the garage due to the gas smell. Plugs were fouling wirh carbom and soot coming out of the tail pipe. Plug are now clean and the exhaust is not smelly anymore. Car now in garage...

[Dodgeb4ya]

^^^^^^Yep!

[Chrysler49]

I know there is a gasket at the base of the step up piston, under the spring.

[Dodgeb4ya]

You better taker it in to the dealer.

[DJ194950]

And plug in the diagnostics on the computer??

 

DJ

[Chrysler49]

Haven't properly set the timing yet bit it's close enough to test drive a bit. Car seems to be running pretty well down the road, it's at idle I seem to be running really rich. Notice getting gas that the fuel cap sucks ALOT of air when unscrewing. Could I be having a venting issue? Cap is only a year old, but I suppose the backfire could have done something.

[Dodgeb4ya]

You need to run a vented cap. The gas tank sucked in on top?

[Chrysler49]

Cap is vented. Taking it off still results in black smoke at idle.

[Dave72dt]

Get the timing set first.  You know that could be off a bit and it can make the car smoke.  Once the ignition system is functioning as it should be and it's eliminated from the possible cause list, you can start looking at the fuel system.

[Chrysler49]

Will have help tomorrow setting timing. Hopefully that is the overarching issue here.