b6vt Posted June 19, 2011 Share Posted June 19, 2011 I have been having a problem with my 48 LC. No power. I took a reading to day with a Vacuum guage and at an idle it read between 14" and 15 " of Vacuum at an idle. This was a steady reading. What should it be? Glenn Lorei b6vt Link to comment Share on other sites More sharing options...
peecher Posted June 19, 2011 Share Posted June 19, 2011 The normal is 17 to 22"/ hg at idle. You might check the compression to eliminate leaky rings and/or valves. Could have a vacuum leak...maybe the vacuum reservoir tank? Link to comment Share on other sites More sharing options...
b6vt Posted June 21, 2011 Author Share Posted June 21, 2011 Peecher, I took the reading right off the connecterat the intake manifold. Sounds like I may have further problems. Glenn Lorei b6vt Link to comment Share on other sites More sharing options...
peecher Posted June 21, 2011 Share Posted June 21, 2011 Might even be a disconnected or partialy leaking vacuum hose under the dash. Those old hoses come loose real easy and the engine will run crappy. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now