Modulator and Vac Advance line question

[60s Refugee]

I have forgotten why they put that loop in the modulator and advance lines to route them above the log/head level . I wonder how important this is since my tri power set up interfears with both loops. Would sure be easier to route the new lines without the loops!

Harry

 

[BIGREDRASA]

I'm not sure what loops you have, but they're put into metal lines to provide more flexibility, and keep them from breaking. You should be OK to use any kind of flexible vacuum hoses. Just keep them off the headers.

 

[60s Refugee]

The hard lines coming from the carb vac port and the trans modulator port in the intake run to the front of the air cleaner then bend up, turn back down and then run to their respective assignment. It looks like a reverse water trap! Someone told me once this was done to prevent some sort of bad thing happening. I agree this loop (actually an inverted "U") would prevent the lines from cracking, but I thought it was more than that. Look at the stock engine photos on the Classic Inlines site and you will see these lines in most of the photos.

Harry

 

[Bort62]

Well, I don't know about this application but I do know that hardline is never supposed to be used in a strait line between fixed point A and fixed point B.

Always supposed to be a bend.

 

[60s Refugee]

Here's a pic of a stock six with the two loops I'm asking about. You can see them just in front of the air cleaner. One is modulator line, the other vac advance. [img]http://i302.photobucket.com/albums/nn110/60sRefugee/Line-loops.jpg[/img]

Thanks

Harry

 

[JackFish]

Actually it looks like someone didn't want to bother cutting and flaring stock pieces that were too long. :roll:

 

[60s Refugee]

Well, Jack, every stock Mustang six I've seen has these bends. The new pre bent lines I bought from NPD when I did the restoration had these loops. There's at least a dozen more shown on the Classic Inlines site where I got the pic from. In fact, here's a pic of my engine at a car show last spring. You can see the loops![u

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[wsa111]

The bends are above carburetor level & it prevents fuel vapors from condensing & flowing to the modulator & vacuum advance. Bill

 

[JackFish]

OK, learn sumthin' new everyday. 8)

 

[60s Refugee]

Wish I could remember what I've forgot! :roll:

Harry