Hi Ron,
I have rebuilt countless AC pumps over the years and always check for suction and pressure with a thumb over the ports. Doing this before fitting to the engine. Sometimes it needs a bit of petrol squirted into the pump to wet the valves before it will suck of pump then they are OK. There is often a bit of free play in the lever before the take up the stroke. As someone suggests it could be the push rod is worn.
regards, Richard
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Richard
1943 Bedford QLD lorry - 1941 BSA WM20 m/cycle - 1943 Daimler Scout Car Mk2
Member of MVT, IMPS, MVG of NSW, KVE and AMVCS
KVE President & KVE News Editor
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