Dual Temp senders to one temp sender?

[clockwatcher]

1990 Merc 350 Mag

I just replace my thermostat housing from old style to new. The original housing mounted 2 temp senders. The new housing mounts the second sender at a different angle and it hits the intake manifold. My understanding is that the 2nd sender is for a dual console boat which I don't have. If I leave the 2nd sender off, do I connect its wire to the single sender or just leave it loose?

Old Housing:

New Housing:

 

[sasto]

Re: Dual Temp senders to one temp sender?

As on my boat 1 is a gauge sender and the other an overheat alarm.

 

[Bondo]

Re: Dual Temp senders to one temp sender?

As on my boat 1 is a gauge sender and the other an overheat alarm.

Ayuh,... That's the Answer,... Only 1 of 'em goes to the gauge...

 

[clockwatcher]

Re: Dual Temp senders to one temp sender?

Thanks to the both of you. I'll pull the housing and see if I can get the other one to fit.

 

[sasto]

Re: Dual Temp senders to one temp sender?

You may not have to install it on the housing if it's a problem. Maybe Mr. Bond can help you relocate it if necessary.

Good Luck!

 

[Bondo]

Re: Dual Temp senders to one temp sender?

You may not have to install it on the housing if it's a problem. Maybe Mr. Bond can help you relocate it if necessary.

Good Luck!

Ayuh,... There May, or may not be a 1/2" water port in the intake manifold for it....

 

[clockwatcher]

Re: Dual Temp senders to one temp sender?

Thanks again guys. I got the 2nd sender on by pulling the housing and tightening the sender down real hard. I should have put a ring terminal pigtail on it first. There's about 1/16" between the stud and manifold.

One more question... Is there a standard free play length for the check balls? The distance from the ball to the nut on either side?