1982 Evinrude Cooling Problem

[Brackishbob]

Working on a 35hp '82 Evinrude. Symptom - was running hot. I pulled the lower unit and found most everything messed up. O rings and rubber gaskets missing. Seeing this made me quite sure that a waterpumpecktomy would make her purr. Carefully installed all new parts and she cooled great for about 10 minutes. Strong Pee Stream got warm the hot quite quickly, (One or two minutes) Plenty of pee stream and water occasionally from those relief ports. <br /><br />Then steam from the pee hole and she got hot to the touch. I shut her down. I'm wondering what to do next. I look at those rusted little bolts holding the cooling cover on the head and wish I was back in Kentucky where there ain't no saltwater. <br /><br />Should I try to get those little bolts out or go on and take the head off first. I'm thinking thermostat is the problem and the way to get to it is removing those little rusty bolts. In a saltwater engine, will the head bolts be less likely to break than the cooling cover bolts. <br /><br />I'm not a newbie, just changed my "Handle" and password to something I can remember!

 

[Sherman]

Re: 1982 Evinrude Cooling Problem

I sure would try to get the small bolts out first. Trying very gently to turn after a least a day of some kind of penetrating solvent. If no turn apply a little heat then spray again wait 15 min. try again. If the proper sealent was applied to the bolts they probably will come out easier than you might expect. If you break one it's not the end of the world and it's a lot better than breaking off a head bolt.

 

[OBJ]

Re: 1982 Evinrude Cooling Problem

Yeah....it's one of those danged if ya' don't and danged if ya' do type things. Like Sherm said....be easy with them. There only 1/4" bolts and will snap pretty easy if frozen in. Go around first and see how many will come lose. Then work on the ones that are stuck. Shoot....ya' might get lucky and have them all come lose......

 

[Brackishbob]

Re: 1982 Evinrude Cooling Problem

Thanx, so you guys think my symptoms are thermostat related?

 

[OBJ]

Re: 1982 Evinrude Cooling Problem

Most likely. Got a good pee stream when running and a new impeller....plus being a salt water engine. And you probably don't know when the t-stat was changed last. When you get the cover off, be sure to clean the inside of the cover real good.