what are good compression numbers in psi? i think that is the right term.

congrats n4ji. let us know what she feels like.

YEAH BABY!!!

A great rotary should have about 100psi on each rotor, anything less then 80 is in need of a rebuild.

nah still doesnt run.. its a mystery

took it to a mazda dealer because i was stumped.. theyve had it for 2 weeks and cant find anything wrong yet

where can i get a compression tester? and how much do they run for?

Compression testers are relatively expensive I believe. Just take it to a car dealer (preferably Mazda) and they can run a test for around $70.

nah dude compression testers are like 20 bucks around hurr =/

Blasphemy! I was talking to a guy at Tom Wood Mazda (right down the street) and he said they cost $74! I hope you get your TII running again, it was a fun car to drive when I went and saw it over the summer.

lol well the tester i got was that cheap, it sucks but it works.


yeah it was fun to drive for the one day i was able to drive it! :)

thanks though.. im gonna call the dealer and figure out wtf is going on

you must be thinking of standard pressure gauge testers. The mazda tester is a proprietary tester for rotary engines and definatly cost more than $20

Hmm, you would think that maybe Mazda would write down compression test procedures and standards somewhere, like in a service manual or something like that. Oh well, since nothing like that exists, I will guess that those numbers were probably the deflections of your fan belts in mm, which means that they are a bit tight, but the AC compressor belt is fine if it was the one with the 7.9 reading.

About $1,600 new.

yeah.. the mazda tester...

wow 1600 half the price of my car!