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As I'm buying parts for my engine (351M), I encountered this part that has me baffled. Maybe it's part of emissions? IDK
I can't find any information on it thru illustrations or part numbers as I cannot find any markings.
Tube that connects on passenger side of carb to rear of the carb (2150).
Can someone enlighten me and correctly identify it?
That is a heat stove pipe - used by a climactic carb (or electric assist carb) to open the choke. Warm air from the manifold activate the bi-metal spring in the choke.
Isn't he missing the part that attaches to the choke.
Yes he is. There should be a metal tube running from the empty hole in the intake to the brass fitting on the choke thermostat. The brass fitting can be see in about the middle of the circled parts.
No not the pull off.
If you look in the middle of that circle there is a fitting pointing down between the black housing and the EGR bolt base.
As said there should be a metal line to that fitting then to the intake next to where that metal line is in the picture.
The air flow (filtered cold) is from the carb down the metal line to the intake where it picks up heat from a piece in the intake exh cross over.
The heated air then goes out and up the other metal line to the choke housing to Open the choke.
BTW you could have a vacuum leak at that fitting as a little vacuum is used to pull the air thru the system.
My 81 F100 with a 300 six uses the same heat asst. for the choke opening and I have a non Ford with a v8 that uses this also.
Dave ----
edit there is no electric to this choke so this heat is the only way I see the choke opening so needs to be fixed.
That should work just know you will not be using all of it.
You will need the tubing, white insulation, the nut & barrel and maybe 1 of the adaptors.
On my 300 I swapped on a set of EFI exh manifold and they don't have a need for the choke heat, no choke with EFI, so I had to make my own set up.
I did buy that same kit but only used the white insulation, the nut & barrel. I picked up some copper tubing to wrap around 1 of the exh manifolds to pick up the heat for the choke.
It hooks to all the factory points on the carb & choke housing and in testing seams to work just fine.
The kit & copper tubing
Cool filtered air
Copper wrap around exh manifold to pick up heat
Hooked up at the choke housing
That metal half can thing you can place in the exh manifold and run the tubing into it to pick up heatif you do not have a spot in the intake like you but some v8's and 6's run it thru the exh manifold.
Stock log exh manifold
Dave ----
07-12-2019, 03:02 PM
