1994 Chaparral with 5.7L merc with Alpha I Gen II. My temp never gets above the 120-130ish mark - it seems to run great though, no problems. I have been searching, but am finding conflicting info, some things say that range is ok, others state 140 for raw water cooled and then there is the ever present 160, which is optimum for an engine. Anybody know the appropriate range? Also, if anybody knows the part number for the thermostat (in case I need to replace it), would you mind posting it.
Thanks
Thanks