Have a 68 6 cyl. I removed an autolite 1100 from a 65 (I believe) 6 cyl - carb has no tag and I can't find any numbers stamped on it anywhere. The carb has a piece bolts onto the engine between the carb and engine - a heater hose attaches to this piece. Is that supposed to be used for the 68? What's it for, to heat air going into the carb? Also the carb has only one working diaphragm, which I believe means it was used on a manual transmission - don't know as the car was pretty much gutted out. If I buy a rebuild kit will the kit have rebuild parts for both diaphragms?

 

hiya, the hose you refer to is probably for PCV. It has nothing to do with heating.
The hose goes from there to a PCV valve sitting on top of the rocker cover.
It basically sucks in all the "extra-air" from your crank case. This prevents those fuems getting in the environment as they are burnt (added to air fuel mixture).
Put it this way: if you attach theat hose to a heater then you'll flood carb and engine with water ....

If the carb is an automatic choke then you will have a black cylinder on the side. Just below this there is a heating pipe that goes to your intake manifold to suck hot air from there to heat up the spring inside the housing. But I don't think the 1100 have such a pipe. not sure. and if, then it's a metallic pipe, not a hose.

Here's an exploded view of the carb:
http://www.ponycarburetors.com/images/pdfs/1100.pdf
let us know which parts exactly you are taling about.

The hose you refer to and I believe you are talking about is not listed here. But it is on a plate that is mounted directly under the lower body (between intake and carb). it's the only thing I could think off




with diaphragm I'm not really sure wht you mean. the opne for the accellerator pump? it doesn't make any difference to manual or auto. The difference is usually that you have a second linkage for auto transmission

 

unit91
I have an I6 68 coupe too. The part you are looking for is a carb spacer. Mine came off of a 1966 F100 pickup truck. It doesn't have the hose nipple on it for the PCV, but I put it on anyway and my car runs well. I got mine off ebay for about $20 but you can get them new from Mustangs unlimited and other parts warehouses for a bit more.

 

unit91
I have an I6 68 coupe too. The part you are talking about is a carb spacer. The 68 needs one too as it rotates the card 35-40 degrees so the linkage is in the correct position. Mine came off of a 1966 F100 pickup truck. It doesn't have the hose nipple on it for the PCV, but I put it on anyway and my car runs well. I got mine off ebay for about $20 but you can get them new from Mustangs unlimited and other parts warehouses for a bit more.

 

In response to Kalli: my 66 I6 has the heat tube. Its a metal tube with some kind of material slipped over it. It's in the exact position he talked about. If you need a replacement Pony Carbs has them.

 

OK. See photo. I'm talking about the bottom piece. The heater hose from the engine went into one end and hose at other end went tinto the heater core. What is that bottom piece for? And, how can I tell if this is the correct carb for a 68 6 cyl?

 

That is a carb spacer. I took my hoses off and connected them to each other. You hook your PCV valve hose to it and also the throttle assembly.

 

Why is a spacer needed anyway??? The carb on my 68 (A Holley 1940) doesn't have one.

 

unit91,
If you notice the stud location on your intake manifold and the bolt holes on your carb, you can't mount the carb directly t othe manifold because the manual choke would hit the valve covers. The spacer turns the carb 35-40 degrees so it aligns correctly without hitting the valve cover.

 

OK. Got it........I'm learning! Thanks very much........