Crab distributor vacuum
 

Where does the vacuum line attach at the distributor? I know it comes off the intake but where does it connect to the 42-44 crab dist.?

Re: Crab distributor vacuum
 

In the port on the timing cover. There is a boss cast into the cover.

Re: Crab distributor vacuum
 

You can see the port on the cover, top right.

Re: Crab distributor vacuum
 

Do all timing covers have that port?

Re: Crab distributor vacuum
 

No, only the covers that have 2 bolts for the distributor.

Re: Crab distributor vacuum
 

I think it is 42 thru 48.

Re: Crab distributor vacuum
 

https://www.fordbarn.com/forum/attac...2&d=1588601368


https://www.picclickimg.com/d/l400/p...r-Original.jpg

Re: Crab distributor vacuum
 

And here is the back side of that two-bolt distributor, on which you can see the tiny, corresponding vacuum port with it's sealing O-ring in place. As the distributor bolts are snugged-up, that O-ring which protrudes above the flat surface is compressed, sealing the press-fit connection. DD


https://www.picclickimg.com/d/l400/p...iginal-Hot.jpg

Re: Crab distributor vacuum
 

And here is picture of the adapter require when converting from a 3 bolt helmet distributor to a two bolt crab distributor (engine has a 3 bolt timing cover).... As seen on VanPelts site....


http://www.vanpeltsales.com/FH_web/F...-spacerkit.jpg