I have a 1990 Integra LS w/ a 1990 B18A1 engine. On the back of the engine, above the oil pressure sender is the water temperature switch that turns on the radiator. I am swapping in a re-built 1993 B18A1 engine that does not even have a tapped hole in that location. My question is where is the water temperature switch located on the 1993 LS? If anyone knows, thanks a lot, this is not exactly easy. If not, I'll find a solution.

 

I think it's on, or near the thermostat housing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rgaray &raquo;</TD></TR><TR><TD CLASS="quote">I think it's on, or near the thermostat housing.</TD></TR></TABLE>

Good call, Thanks a lot. Probably wouldn't have found that without your help. Turns out that it is threaded into the thermostat cover on the 1993's. The 1990 cover didn't have this and the cover I pulled off the 1993 engine looks exactly like the 1990 cover (previous owner must have done something funny).