1988 88 SPL Thermostat question

[Johnny_4321]

How hard is it to change the thermostat in a 1988 Evinrude 88HP?
The water stream goes from cold to extreamly hot every 5 seconds.
At low idle it contains some steam. The water pump was new 3 years ago but has less then 30 hours. The boat missed last season of boating so it sat for 2 winters here in CT.
Thanks,

John

 

[AEROCOOK]

Re: 1988 88 SPL Thermostat question

I dont think that is a bubbleback motor so It's not too hard. An extra set of hands wont hurt though. The tricky part is compressing the springs as you reassemble, then the housing needs to be held in place while you put the bolts back in. I have to do mine this weekend as well and its a bubbleback so I plan on having some help.

 

[emdsapmgr]

Re: 1988 88 SPL Thermostat question

You will need two of them. Each controls the temp on one head.

 

[ezeke]

Re: 1988 88 SPL Thermostat question

It's better to have the repair kit: http://www.iboats.com/mall/partfind...gd_poid=111072&gd_row=39&**********=895699033

The kit has everything normally required to rebuld the thermostat system.

Click the thumbnail for the diagram.