The Ford Barn

mb198 · 10-31-2015, 12:14 PM

Flat head temperature went to 210 on passenger side head and I shut it down. After it cooled I took off radiator cap and restarted. Looking across top of inside radiator tank I could see discharge on drivers side but not passenger side. Shutdown and cooled. Removed passenger side discharge hose at radiator top and rerouted to a bucket and restart motor, no flow from hose. Belt is tight with good contact, pulley is turning, no hose obstructions, alternator is mounted on passenger side head bracket so not as much belt contact as drivers side. Antifreeze drained out of head okay when draining system. Any suggestions before I replace water pumps? Thanks.

flatheadmurre · 10-31-2015, 12:24 PM

Thermostat not opening ??

mb198 · 10-31-2015, 12:42 PM

no thermostat housing, hose plumbs right into head. If there's a thermostat I can't find it.

deuce_roadster · 10-31-2015, 12:43 PM

flatheadmurre x2 if you have a tstat.

Gary in La. · 10-31-2015, 01:28 PM

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The thermostats are not in a separate housing if a pre 1949 engine. They sit on top of the head outlet where the hose attaches. These thermostats can come loose and tip in the hose restricting the flow especially if stuck closed.

10-31-2015, 12:14 PM	#1
mb198 Junior Member Join Date: Oct 2015 Location: Powhatan, Virginia Posts: 5	water pump not flowing Flat head temperature went to 210 on passenger side head and I shut it down. After it cooled I took off radiator cap and restarted. Looking across top of inside radiator tank I could see discharge on drivers side but not passenger side. Shutdown and cooled. Removed passenger side discharge hose at radiator top and rerouted to a bucket and restart motor, no flow from hose. Belt is tight with good contact, pulley is turning, no hose obstructions, alternator is mounted on passenger side head bracket so not as much belt contact as drivers side. Antifreeze drained out of head okay when draining system. Any suggestions before I replace water pumps? Thanks.

10-31-2015, 12:24 PM	#2
flatheadmurre Senior Member Join Date: Apr 2015 Location: Sweden Posts: 3,045	Re: water pump not flowing Thermostat not opening ??

10-31-2015, 12:42 PM	#3
mb198 Junior Member Join Date: Oct 2015 Location: Powhatan, Virginia Posts: 5	Re: water pump not flowing no thermostat housing, hose plumbs right into head. If there's a thermostat I can't find it.

10-31-2015, 12:43 PM	#4
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,820	Re: water pump not flowing flatheadmurre x2 if you have a tstat.

10-31-2015, 01:28 PM	#5
Gary in La. Senior Member Join Date: May 2010 Location: Louisiana Posts: 866	Re: water pump not flowing Sponsored Links (Register now to hide all advertisements) The thermostats are not in a separate housing if a pre 1949 engine. They sit on top of the head outlet where the hose attaches. These thermostats can come loose and tip in the hose restricting the flow especially if stuck closed.