Hills and temperature

rx4ur7 · 08-13-2009, 02:38 PM

Zach,
Do you have to add water to it first thing in the morning? The lowering and rise of water is correct for normal operation. It's the bubbles I am concerned with. Early stage bubbling only showed overheat issues during the summers out here. Temps where fine under 90. Keep checking it before the first start. You are checking and filling at the non pressure cap on the motor I am sure. Keep checking bubbles, watch for any change in size. 50K is a good run for a MANA motor. They only had to do 12. At one time they were notorious for being 13 month motors. If you got one that had all new housings you got the gonga deal.
One other test to try, remove engine water cap, pull leading plugs and pressurize the rotor chambers with compressed air watch for any change in water level. This is the original Mazda check procedure.
Water wetter? How much antifreeze? Out here we can run straight water with waterwetter.

08-13-2009, 02:38 PM	#1
rx4ur7 Rotary since 1972 Join Date: Nov 2008 Location: Tucson Posts: 231 Rep Power: 17	Zach, Do you have to add water to it first thing in the morning? The lowering and rise of water is correct for normal operation. It's the bubbles I am concerned with. Early stage bubbling only showed overheat issues during the summers out here. Temps where fine under 90. Keep checking it before the first start. You are checking and filling at the non pressure cap on the motor I am sure. Keep checking bubbles, watch for any change in size. 50K is a good run for a MANA motor. They only had to do 12. At one time they were notorious for being 13 month motors. If you got one that had all new housings you got the gonga deal. One other test to try, remove engine water cap, pull leading plugs and pressurize the rotor chambers with compressed air watch for any change in water level. This is the original Mazda check procedure. Water wetter? How much antifreeze? Out here we can run straight water with waterwetter.