[ECONOTRUCK]

Has anyone got any info onthe correct spacer to fit under the Autolite 1100 carb ? The one I got with the 200 is too narrow ( base of carb is 64mm across but the spacer is only 55mm across . Where do I get the correct one from ? TIA

 

[Yadkin]

That spacer looks like it tapers from the base of the carburetor to match a narrower intake manifold. What size opening is on the manifold?

 

[ONEZ ST]

Looks very similar to this spacer on eBay

1966-1968 Mustang 6 Cylinder 170 / 200 Carburetor Spacer Plate | eBay

 

[ECONOTRUCK]

That spacer looks like it tapers from the base of the carburetor to match a narrower intake manifold. What size opening is on the manifold?

Thats the problem ,I'm not sure what engine this spacer came from and its been filed to try and match the bottom of the Autolite carb ( seems like it may be a 144 as its the same size as the base of a Holley 1940 )
Problem is the carb is bigger across than the spacer so the 'channel' in the base of the carb is hanging over the edge of the spacer ( so open to air !) I want a spacer that matches the Autolite 1100 which I assume was OE on the 67/8 Mustang . As far as I know the cylinder head has been changed as it shows a C7 code and the engine is C8

Looks very similar to this spacer on eBay

1966-1968 Mustang 6 Cylinder 170 / 200 Carburetor Spacer Plate | eBay

I'd like to know for sure before I buy as its not just the purchase price I've got to add shipping/customs and VAT to the price to get it to me in the UK ....so it'll be double that price!

 

[Yadkin]

Thats the problem ,I'm not sure what engine this spacer came from and its been filed to try and match the bottom of the Autolite carb ( seems like it may be a 144 as its the same size as the base of a Holley 1940 )
Problem is the carb is bigger across than the spacer so the 'channel' in the base of the carb is hanging over the edge of the spacer ( so open to air !) I want a spacer that matches the Autolite 1100 which I assume was OE on the 67/8 Mustang . As far as I know the cylinder head has been changed as it shows a C7 code and the engine is C8

The purpose of the channel on the left side of your second photo is to provide manifold vacuum to a corresponding port on the carburetor. The larger hole on the right side is a vacuum source for the Positive Crankcase Ventilation (PCV) system. The large tube is for coolant, the ides keeping the carburetor isolated from the hot intake manifold so that the gas wouldn't boil in the float bowl after shut-down.

Ford used a phenolic spacer in later years and used different plumbing to serves those three functions. As long as you can adapt or recreate those in some way then you can use a variety of spacers. I've seen guys use a piece of plywood.

 

[ECONOTRUCK]

The purpose of the channel on the left side of your second photo is to provide manifold vacuum to a corresponding port on the carburetor. The larger hole on the right side is a vacuum source for the Positive Crankcase Ventilation (PCV) system. The large tube is for coolant, the ides keeping the carburetor isolated from the hot intake manifold so that the gas wouldn't boil in the float bowl after shut-down.

Ford used a phenolic spacer in later years and used different plumbing to serves those three functions. As long as you can adapt or recreate those in some way then you can use a variety of spacers. I've seen guys use a piece of plywood.

Cheers mate , just been making an aluminium spacer to try it so maybe that'll work 🤞The only thing with the phenolic spacer is I'd have to rig up a new mounting for the throttle linkages and I'm trying all the 'easy' options first 👍

 

[Yadkin]

Cheers mate , just been making an aluminium spacer to try it so maybe that'll work 🤞The only thing with the phenolic spacer is I'd have to rig up a new mounting for the throttle linkages and I'm trying all the 'easy' options first 👍

Al You Min E Um transfers heat rapidly so my not be the best choice. Maybe you can make the diameter slightly larger and cut in some cooling fins.