Re: [HSS] Vacuum Tank Plumbing

Unknown

Looks pretty well okay, apart from the tap, which originally had a flare

fitting, but hey, I won't tell on you! Also the vacuum fitting originally

had a booster, which was essentially a venturi type fitting which sucked air

constantly through a very small orifice. this air went past the top of the

vacuum tank, creating a pressure difference, so in effect it worked on this

rather than engine vacuum. There is a by-pass to the wiper tube

incorporated. The advantage of this is that it will continue working even

when the engine is working hard and vacuum is low. However the tank will

function pretty well even without it - I don't have one on my '29 Hudson,

nor on my Essexand have never had any prpoblems, but we don't have forty

mile hills over here either!

Geoff.

----- Original Message -----

From: "James Coats" <jamcoats@uab.edu>

To: <HudsonSuperSix16-29@yahoogroups.com>

Sent: Wednesday, August 03, 2005 8:38 AM

Subject: [HSS] Vacuum Tank Plumbing





> Hi Gang,

>

> Can anyone advise me as to the correct fittings and arrangement for

> the vacuum tank plumbing?

>

> An educated guess leads me to this:

>

> A 1/8" pipe branch tee on the vacuum fitting at the top of the

> vacuum tank, with a hose barb (for wiper) on one end, and a 5/16

> flare to 1/8 pipe adapter on the other (to go to the intake

> manifold).

>

> Then 5/16" OD copper tubing from there to the intake manifold, where

> the line terminates in a 90 degree 5/16" flare to 1/8" pipe adapter

> on top of the manifold.

>

> The fuel outlet petcock on bottom of the tank is a compression

> fitting, so I suspect 5/16" copper line to the carburetor, with a

> compression sleeve and long nut at the petcock. On the carburetor

> end, I am using a short piece of rubber hose and a hose barb on the

> carburetor to avoid stress on the float bowl.

>

> As for the fuel inlet, I have 5/16" copper line coming up from the

> steering box area, around the outside of the firewall to the inlet

> on the tank, with another 90 degree 5/16" flare to 1/8" pipe adapter

> at the tank inlet.

>

> All of the flare and compression nuts are long nuts.

>

> I know all of this will work, but is it correct? If not, what is?

>

> Best Regards

> James Coats

>

>

>

>

>

> Community email addresses:

> Post message: HudsonSuperSix16-29@onelist.com

> Subscribe: HudsonSuperSix16-29-subscribe@onelist.com

> Unsubscribe: HudsonSuperSix16-29-unsubscribe@onelist.com

> List owner: HudsonSuperSix16-29-owner@onelist.com

>

> Shortcut URL to this page:

> http://www.onelist.com/community/HudsonSuperSix16-29

> Yahoo! Groups Links

>

>

>

>

>

>

>