Mariner 60hp 1988 Thermostat??

[jw2000uk]

Hi, Just wondering where this is on the engine,i want to connect it to a gauge.

Also im praying you say "it has got one"

As the telltale stops and starts.

Regards Jamie

[Jizm]

Originally Posted by jw2000uk

Hi, Just wondering where this is on the engine,i want to connect it to a gauge.

Also im praying you say "it has got one"

As the telltale stops and starts.

Regards Jamie

It SHOULD have one, top of cylinder head somewhere. What kind of guage?

[Nos4r2]

You can't connect a gauge to a thermostat-only to a temperature sender.

An 88 is a clamshell cowl mariner isn't it or is it a derivative of the yam-based mariner? I've got a manual here for the clamshell cowl version (in the garage-I'll check tomorrow to see if you've got a thermostat).

If it IS the clamshell 60 then there should be a take-off on the cylinder head water jacket cover for a water pressure gauge.It looks like a brass plug around 11mm in diameter.
If you can fit a temperature sender in there it'll work. If not you could get a machine shop to drill/tap you the right size hole for a sender.


A question-when you run it on flush muffs and the telltale stops and starts does the water coming out of the centre of the prop do the same? If not it could simply be a blocked telltale.

[Nos4r2]

Just looked at the manual and no mention of a thermostat on any pre-89 mercs except the V6.

You might have a poppet valve though which could give those symptoms from the telltale-get on Iboats.com forums and ask in the merc repair forum. There's no mention of one in my manual though.