93 Johnson 70TLETS water pressure

navydoc

Recruit
Joined
Jul 28, 2008
Messages
1
What should the water pressure be? I replaced impeller and pump kit, replaced thermostat cover and spring but pressure falls from 15 psi (guage) to 7 psi. good stream at tattle tale, no over heat alarm, good stream at gauge.
 

wilde1j

Vice Admiral
Joined
Apr 15, 2002
Messages
5,964
Re: 93 Johnson 70TLETS water pressure

First, is it overheating? Can you touch the cylinder head(s) w/o getting burned after motor has run for a while?

Are you saying pressure was 15 psig before the rebuild and now is 7 psig? If pressure after is lower, you got something wacked (gasket, outlet grommet, etc.).

Did you replace the pump liner and wear plate?

Help us w/ some info .....
 
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