Engine: 2.3 F/Inj B23E/B230F: - Vacuum Readings

daveo2005 · Sep 25th, 2007, 15:15

I've just checked the manifold vacuum on my 240 and it is reading at 14" - seems very low to me. Has anyone ever checked theirs to compare?

Car is a 1988 240 GLT with the B230E. Reading taken from the PCV nipple on the manifold.

There are no obvious leaks on the vacuum pipework nor around the manifold.

GEORGEROV · Oct 9th, 2007, 21:13

Hi Dave, Never seen any typical manifold vacuum readings given in Haynes but what makes you think yours is wrong?. 14" would equate to about 7psi under no load conditions. Would have thought that would be adequate. If your engine is runnung sweetly with no flat spots through the rev range then wouldn't worry.

Sep 25th, 2007, 15:15	#1
daveo2005 Junior Member Last Online: Mar 16th, 2011 12:14 Join Date: Dec 2005 Location: Poole View Photos By: daveo2005	Vacuum Readings I've just checked the manifold vacuum on my 240 and it is reading at 14" - seems very low to me. Has anyone ever checked theirs to compare? Car is a 1988 240 GLT with the B230E. Reading taken from the PCV nipple on the manifold. There are no obvious leaks on the vacuum pipework nor around the manifold.

Oct 9th, 2007, 21:13	#2
GEORGEROV GEORGEROV Last Online: Jun 29th, 2014 00:54 Join Date: Aug 2006 Location: Archiestown	Hi Dave, Never seen any typical manifold vacuum readings given in Haynes but what makes you think yours is wrong?. 14" would equate to about 7psi under no load conditions. Would have thought that would be adequate. If your engine is runnung sweetly with no flat spots through the rev range then wouldn't worry.

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