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OMC 4.3 1989 Cooling

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Pat Chislett
Member
Username: pat_the_pom

Post Number: 27
Registered: 08-2007
Posted on Sunday, April 20, 2008 - 04:46 am:   Edit Post Delete Post View Post/Check IP

I am ready to run my engine after totally draining the engine cooling system and also fitting new manifolds, impeller, gimble bearing etc etc.My question is, should I pre fill the engine from mayby the thermostat housing prior to starting first time or will the pump in the leg get the coolant round OK on its own with the muffs on. It might sound a silly question but I dont want to cook the engine first run.
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Hy Stat
Advanced Member
Username: hystat

Post Number: 234
Registered: 05-2007
Posted on Sunday, April 20, 2008 - 09:37 am:   Edit Post Delete Post View Post/Check IP

muffs will be fine - what you can do is loosen the clamp on the hose supplying the thermostat housing from the drive and make sure you get water out there withing the first few seconds of running it - lets you know the impeller is doing its thing.
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JUST-IN-TIME
Senior Member
Username: justintime

Post Number: 3847
Registered: 09-2006


Posted on Thursday, April 24, 2008 - 10:40 am:   Edit Post Delete Post View Post/Check IP

you could if you want
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Pat Chislett
Member
Username: pat_the_pom

Post Number: 28
Registered: 08-2007
Posted on Thursday, April 24, 2008 - 04:30 pm:   Edit Post Delete Post View Post/Check IP

Hi just in time. What do mean by you could if you want? Cheers Pat.
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JUST-IN-TIME
Senior Member
Username: justintime

Post Number: 3857
Registered: 09-2006


Posted on Thursday, April 24, 2008 - 05:53 pm:   Edit Post Delete Post View Post/Check IP

u could pre fill
when i do impellers i use dawn soap

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