Author Topic: Small line between intake manifold and carb  (Read 261 times)

Offline 6262

Re: Small line between intake manifold and carb
« Reply #10 on: August 16, 2018, 12:53:30 PM »

I'm curious....why is a vacuum line running from the manifold into the choke spring housing?  The purpose of that tube is to deliver heat to the spring so it slowly expands during cold starts.

The tube is not connected to a vacuum source but to a heat channel. This heat is directed to the choke.

Offline 6262

Re: Small line between intake manifold and carb
« Reply #11 on: August 24, 2018, 12:43:13 AM »
The topic is discussed elsewhere, too. Apparently the choke tube design was changed between '58 and '59.

http://forums.cadillaclasalleclub.org/index.php?topic=151467.0