1955 292cid how to measure manifold vacuum?

[zeroroadkill]

I tried to measure idle vacuum from the distributor vacuum line from the carb but it was 0" at idle. Is there another way to measure vacuum at idle? Can't seem to find any other vacuum lines...

Thanks
Bob

This page contains affiliate links for which I may be compensated. As an eBay Partner, and Amazon Associate I may be compensated if you make a purchase at no cost to you.

 

[doug7740]

I tried to measure idle vacuum from the distributor vacuum line from the carb but it was 0" at idle. Is there another way to measure vacuum at idle? Can't seem to find any other vacuum lines...

Thanks
Bob

You can measure the manifold vacuum at the small vacuum wiper line that is connected to the brass block in the intake manifold forward of the carburetor.

doug7740
1955 Thunderbird Blue

 

[zeroroadkill]

You can measure the manifold vacuum at the small vacuum wiper line that is connected to the brass block in the intake manifold forward of the carburetor.

doug7740
1955 Thunderbird Blue

Yeah I found that after turning the lights on LOL thanks

 

[zeroroadkill]

Yeah I found that after turning the lights on LOL thanks

Got 18 pounds of mercury had idle

You can measure the manifold vacuum at the small vacuum wiper line that is connected to the brass block in the intake manifold forward of the carburetor.

doug7740
1955 Thunderbird Blue

Yeah I found that I’m pulling 18 inches of mercury at idle

now all I need is a timing gauge tape or something to mark the crank pulley

thanks

 

[JRH]

Got 18 pounds of mercury had idle

Yeah I found that I’m pulling 18 inches of mercury at idle

now all I need is a timing gauge tape or something to mark the crank pulley

thanks

I used a white out pen to mark the timing marks. No muss no fuss.