Temp Gauge

[dropbear68]

Can I fit a temp gauge to my 77 V4 Evinrude?

 

[Faztbullet]

Yes......

 

[dropbear68]

How do I do it, I have a VDO Temp Gauge, dont know the how and whys to do it

 

[toddschubert]

I'll have to find a picture but I mounted one on top of the thermostat housing. It gives a good accurate temperature of all four heads. Mine ran around 130 at hot idle and slightly cooler at speed.

 

[toddschubert]

No Title

There worked perfect As matter of fact, I'm going to put the same thing on my newly purchased 90 johnny '98

 

[boobie]

Todd, I like the idea. Never seen that before.

 

[toddschubert]

It works! Very accurate as compared to the average temp of all the heads at their hottest point

 

[dropbear68]

So thats not tapped into the cooling system at all?

 

[Bosunsmate]

If that little hole in the middle block in that thermostat housing gets blocked up then you would run into trouble as the thermostat area would keep cold but the heads would be cooking up

 

[emdsapmgr]

It's fairly easy to adapt a tyical temp sender to a surface contact installation. Will work fine. Some senders come with a z-bracket to hold the sender in contact with the head. I've also had to make one.

 

[dropbear68]

Will an automotive sender be ok

 

[Bosunsmate]

Will an automotive sender be ok

Thats what i used, just be careful if in salt water that the wires arent tined.
I drilled a little bit into the head and then put the sender in covered in epoxy thermal grease which cost me $4 at an electronics shop, its purpose is to conduct heat effectively hence its what i wanted to happen

 

[toddschubert]

the one I pictured is NOT drilled into t-stat housing! Just surface touching held by re-engineered (rigged) Z BRACKET