FrestyleFC3S

i talked to a few of you yesterday about this problem im having.....im not gonna get into the problem yet maybe later if this doesnt work



but im gonna change the spark plugs cause theres a chance they can be rfeally fouled up .....while theyre out im gonna do a self compression test....basically the audio test where you listen for the rotors moving



how exactly do you do that....



take out plug, pull egi fuse...then what...crank the engine?....how many should i do at a time? etc?



thanks guys



- mike

Baldy

I would take out spark plugs for 1 rotor, remove fuse, then crank. Replace spark plugs, then remove plugs from the other rotor, and crank.



I've only listened to compression with no exhaust on, not through the spark plug holes, so I'm not sure exactly what it would sound like. But you should hear 3 sounds, swooshes or something. If compression was bad, you would not hear 3 consistant sounds.

Jims5543

I think you can borrow a piston engine compression tester from Autozone. Just remove the trailing plug from the front and rear rotor housing. Pull the EFI fuse on your fuse block under the hood. Then take the compression tester and remover the schrader valve from it. Thats the little nipple thingy in the middle like I bike tire has. Screw it in and have someone turn over the engine while you watch the tester. You should see the needle bump 3 times all the same.



Good luck.





Make sure you pull all you plg wires.

MazdaEnthused

i need to get a compression tester my self how much do they run??

UniqueTII

$45 at Napa.

FrestyleFC3S

well theres no vac leak i can see .... i changed the spark plugs so im at a loss...im gonna get a compression test to check out the engine next...its only got like 30-40k miles on it so this sucks



ima go cry

Jims5543

FrestyleFC3S - What is the car doing or should I say not doing. I missed the memo.

Nemesis

Self Compression Test:



1) Stick finger in ***

2) Hold breath

3) Squeeze body as tight as possible

4) Repeat three times



If you explode or **** yourself, you failed.

FrestyleFC3S

jim....it wont idle for ****....the engine and body of the car rock heavily like massively and it wont hold idle well...it clicks around at 5-700 depending on what it wants to do...the boost gauge shows the vac pressure going crazy too..just bobbing and not stable at all



its loud and sounds like a v8....sometimes it stalls



i changed the plugs, checked the lines, and need to check compression...coming to the conclusion that its a dead engine

UniqueTII

Can you hear any noises inside the engine while it's running? I've heard two blown rotaries and they sounded exactly alike...there was a definite metallic sound coming from the engine.