81 V4 90HP Johnson Thermostat question

[Keithm18]

Hi All. I finally received my new thermostats over the weekend after a long wait. They seem to work slightly differently to the old ones and I am concerned that they won't have enough clearance in their housing to work effectively

The 81 V4 90HP has the two thermostats at the bottom of the power head at the front of the exhaust housing.
The old ones have a fixed "cap" and the thermostat "retracts" when required. Meaning the operating space required is the size of the thermostat. The new ones have a moving "cap" which "extends" when required. The space in the thermostat cover is very limited and I am concerned that they won't open enough due to the space restrictions. I have attached to small pictures to show what I'm on about.








Has anyone got an experience or advice on this. I am in South Africa, so getting spares is a nightmare and simply exchanging them isn't really an option.

Thanks all.

 

[racerone]

The picture on the right looks like all the thermostats that I have ever taken out of these V-4 motors.---Took some just like that out of an 84 -115 HP that I am rebuilding over the winter.--Install them with no worries.

 

[Keithm18]

Thanks racerone. I think the ones in the motor may have been in the motor since new they were really "worn". Will put the new ones in before I go out this weekend. Thanks for the help and quick response.

 

[joereeves]

In agreement with racerone. The thermostats are slightly different in design but are totally interchangeable.