john. '91 200 v6 water pump or thermostats ?

robc

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Aug 4, 2002
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We have twin johnson 91s v6 200s. <br /><br />Getting ready, both engines ran hot on land. We replaced thermostats on both and water pump on one because of a stuck lower unit on the other.<br /><br />Tested each w/earmuffs- the engine with new thermostats and water pump was pretty warm and peeing a little water. the engine with the new thermostats only was still too hot to touch more that two seconds and dripping water from pee hole.<br /><br />Took out thermostats, tested again, cooled right down.<br /><br />Are new thermostats most likely working properly and we have to replace water pump and impeller ?<br /><br />its gonnna be a nightmare to free lower unit and probably no season or should we look at something else first.
 

robc

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Re: john. '91 200 v6 water pump or thermostats ?

thanks walker--<br />if we just put it back in as will it overheat and seize ?<br /><br />my mechanic told me to try using wedges and separate lower unit that way - nothing to lose
 

Walker

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Jun 15, 2002
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Re: john. '91 200 v6 water pump or thermostats ?

Do the impeller. If you wait it will just get stuck harder.
 

robc

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Aug 4, 2002
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Re: john. '91 200 v6 water pump or thermostats ?

thanks walker--<br />if we just put it back in as will it overheat and seize ?<br /><br />my mechanic told me to try using wedges and separate lower unit that way - nothing to lose
 

REELSPORT

Petty Officer 1st Class
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Apr 14, 2005
Messages
235
Re: john. '91 200 v6 water pump or thermostats ?

If you can get lower unit apart just a little try spaying shaft with jb blaster and it might free it up for you. good luck
 

robc

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Aug 4, 2002
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Re: john. '91 200 v6 water pump or thermostats ?

Thanks Reelsport--<br />is jb blaster some kind of penetrating oil?
 

rickdog67emtp

Petty Officer 3rd Class
Joined
Mar 13, 2004
Messages
81
Re: john. '91 200 v6 water pump or thermostats ?

pb blaster I believe is what he's talking about. Its like wd 40 but better. has a yellow top on the can.
 
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