fordmerc Posted June 22, 2015 Share Posted June 22, 2015 What pressure should I expect from the fuel pump - a '41 120 ?Is it possible to have too much pressure ? (I have a flooding problem) Link to comment Share on other sites More sharing options...
HH56 Posted June 22, 2015 Share Posted June 22, 2015 (edited) Motors Manual says an AC pump model AH was used on the 40-41 eights and gives the max pressure as 3 3/4psi. None of the pumps used from 35-48 appear to be spec'd over 4 1/2psi. The mechanical pumps are usually not an issue but if you have an electric pump, it is definitely possible to have too much pressure and if so, the excess can unseat the float valve and cause flooding. Edited June 22, 2015 by HH56 (see edit history) Link to comment Share on other sites More sharing options...
Packard Don Posted June 23, 2015 Share Posted June 23, 2015 (edited) I had a similar problem years ago on my 1954 Patrician and the addition of a small pressure regulator at the carburetor's inlet solved it. Between that and the addition of graphite engine oil and multi-tip spark plugs, the mileage was greatly improved and I even had to readjust the idle to slow it down as the extra friction reduction of the graphite and added oomph of the spark pulgs made it idle far too fast! Edited August 8, 2015 by Packard Don (see edit history) 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