Logo

Thermostat-how does it go back together

Beagleman

Regular Contributor
Whats up. You guys are so awesome that I decided to hit you up for advice again. I got a 40 hp mariner (40 E 6E9 s 104752), 1985 2 cylinder outboard. Basically a copy of those old Yamaha fm series.

I just took the thermostat and bypass valve out to cleaning/inspection/flush. When taking off the housing, the spring behind it popped the housing off, along with a back washer from the thermostat. When this happened, I didn't get to see the order/sequence at which these go back in (i.e. does the spring go behind the thermostat or plastic bypass valve, where does the back washer go, and in what order).

Sorry if I sound as though i'm mentally challenged, I just wasn't aware of the spring (and other small parts) so I didnt take the time to look at it.

So, what i'm asking is, would someone mind telling me the order at which the thermostat assembly (bypass valve, thermostat, spring, and back washer) goes back in, were the parts go, and what torque do I use for the thermostat housing bolts?

Sorry for being a dunce, I included all of the pictures as attachments to this post.

All the best.

RObby
 
Check the grommet for the poppet valve is still good then install the poppet and spring the thermostat goes spring side in.


SOrry for the mi***planation. I wanted to know where the spring and little copper washer thing go in respect to on top (or bottom) of the thermostat or bipass valve when assembling the thermostat housing cover (as in putting it on over the thermostat and bipass valve) and in what order?

Again, sorry for my country grammer, we explain **** differeently in my neck of the woods.

I appreciate any previous and future help.

All the best.

Robby
 
Back
Top