Vacuum line

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Apr 25, 2009 | 06:28 AM

#11

kalli

6th Gear Member

Joined: Oct 2006

Posts: 6,417

From: Cork, Ireland

yah. that line is no fuel. use rubber. will do fine if you don't have a steel line

Apr 25, 2009 | 02:28 PM

#12

MIL1ION

2nd Gear Member

Joined: Jan 2009

Posts: 232

From: Alberta,Canada

Yes Steel for fuel line....rubber hose (vacuum type hose) for vacuum lines

Would you like me to go take a close up photo of my ORIGINAL set up?

Last edited by MIL1ION; Apr 25, 2009 at 02:31 PM.

Apr 26, 2009 | 12:53 AM

#13

JMD

6th Gear Member

Joined: Jan 2007

Posts: 5,469

From: AR

Quote:

Originally Posted by 109jb

It is possible that your distributor is aftermarket and is only mechanical advance and doesn't have a vacuum advance. If your distributor doesn't have something like the item circled in red in the picture below then you have a mechanical advance only distributor.

And that IS NOT a bad thing IMO...

NEVER MIND...

Should have read one more post before answering...

Last edited by JMD; Apr 26, 2009 at 12:57 AM. Reason: Duh..

Apr 26, 2009 | 05:48 PM

#14

classicman

Thread Starter

Joined: Jul 2008

Posts: 26

From: Alberta Canada

Ok I went out and bought a new diaphragm assembly as well as the rubber hose. I hooked it up according to the pictures and all seems ok. Now what is the best way to adjust my timing. I have been reading online and this is what I am guessing:

Take off vaccum line and set for 6 degrees at idol.
Then with vaccum line back on set to 36 degrees. I read you can adjust vaccum on the new diaphragm with an allen key. Now the second adjustment must be made at the diaphragm correct?

Any thing I am missing before attempting. Once again I have never done this before. I am borrowing a timing light off a guy.

Apr 28, 2009 | 09:48 AM

#15

kalli

6th Gear Member

Joined: Oct 2006

Posts: 6,417

From: Cork, Ireland

nah.
disconnect the vacuum advance at distributor side and block the hose (so carb can't pull air through there). 8 degrees in idle.
then with vacuum advance still disconnected slowly rev the engine and the timing should further advance. 34 degrees at 3000 maxxing out is about good. if there's any difference that can be corrected with different springs or stoppers on the centrifugal weights.
plug the vacuum advance back in and drive. I don't have data to adjust the vacuum advance. its guesswork and trial and error
if you hook up the vacuum to the manifold port of distributor (instead of ported) you will need to re-set the carburator (curb idle and mixture screws) as idle will increase with the thing plugged in.