200xp 1991 Thermostate help

[TJ87]

I have a 1991 E200STLEID, I am tring to remove the water control valve and replace with 93 200hp theromstats, springs, and covers. The problem is I can't find the covers (0337486). Is there another cover I could modifiy to use with these thermostates? I already have the Thermostates, springs and gaskets. Dusky's claimed they had the covers online, but when I got the order they said no longer avalible. Thanks for the help

 

[Faztbullet]

You cannot use the 1993 t-stats or cover, you have to use the parts off a 1990"s 70HP.... and they are hard to find also. Best to buy a 3 cylinder head with t-stat assy installed.

 

[TJ87]

Ok somewhere I read 93 same hp was what I should use. But I see you have discussed this topic for some time now. So what exactly do I need, Thermostats, covers, springs, and gaskets? All from a 70hp? What year or years will work? Sounds like they maybe impossible to find as well, so any idea what heads would run or where to find them?

 

[TJ87]

This is where I saw it, don't mean to argue just explaining why I had planed to use 93'. I don't want to ruin an engine by doing someting I shouldn't. I now see this is an 89' and may not be the same as my 91'
https://forums.iboats.com/forum/engi...-control-valve

 

[Faztbullet]

All the motors that have a water valve use the valve to control t-stats diaphragm....it is acting as a poppet valve. 1993 has a poppet on block. As stated 1993 and up parts wont work..