i just bought a new thermostat. gates brand. and was wondering where the hell it's located so i can change them out. im interested in trying this gates brand out kuz it's only 25 bucks with shipping and it says it works at the same temp as the mugen. thanks

 

follow the upper rad hose.

 

On my Del Sol with a B18b1 it was in a housing on the lower radiator hose end.

 

Its at the end of the lower rad hose , held in by 2 10m bolts, i had trouble removing the lower bolt so i removed my intake which made it easier to get at it.

Also when installing the new one theres 2 groves in the gasket that lines with 2 groves in the block so make sure you line them up or you'll be there for awhile wondering wtf !@!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 994door &raquo;</TD></TR><TR><TD CLASS="quote">follow the upper rad hose.</TD></TR></TABLE>

I think its the lower hose..... should be on back of block on passenger side.... Hope you have small tools, small hands, and lots of patience....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 994door &raquo;</TD></TR><TR><TD CLASS="quote">follow the upper rad hose.</TD></TR></TABLE>

Which will go into the top of the block - telling you nothing about the radiator.

The bottom hose* - follow that one - the "housing" it plugs into is the thermostat housing, it unbolts with two (probably 10mm) bolts, and it's just a cap that comes off.

You can pry the thermostat out w/ a flat-head screwdriver, just note which way it went in - the new one probably comes w/ the gasket separate, so make sure you put the gasket on it before sliding it in there - then put the housing cap back on, put the hose back on, and burp the system for leaks (just let it run for 15 minutes w/ the rad cap off while making sure the fluid is full to the brim).