connection on thermostat housing

[johngosnell]

anybody tell me what the electrical connection on the top of the thermostat housing is for

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regards John

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[John Quilter]

That is the Otter switch, a thermostatic switch that controls the starting carb solenoid by grounding it at this switch. Many have bypassed this switch with a switch on the dash that controls the starting carb AKA the "hisser" or AED, (automatic enrichment device).

[Glyn Ruck]

Otter switch1.JPG (58.2 KiB) Viewed 2437 times

Otter switch.jpg (14.87 KiB) Viewed 2437 times

Invar spring.

[johngosnell]

Thanks for the reply, my son asked me what is for and as I never been able to see it I was not sure because the water temp works so I now know


Many thanks John

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[John Quilter]

Your AED must be set up for manual control since there is no wire connection to the Otter switch showing. Yours shows a being mounted with three studs rather than small bolts. Is this common or a conversion? I like this set up as it would make it easier to remove the nuts rather than the small bolts that go into the aluminum thermostat housing.

[johngosnell]

yes my car has been converted, long before I bought the car . Again with regard to studs rather than bolt bolts I don't know. If they were always bolted I guess that it has been changed possibly when the manual choke was fitted.


Regards John

1B1257BW