bugman1973

i have spark i think i have fuel not sure on that but it says i have the right amount of fuel pressure. it does have new spark plugs but the engine is really loud right now. like only running on one rotor

mikey D

really loud usually means exhaust leak

se are slow with exhaust leaks because the 2ndary ports do not open properly and sometimes not at all.

bugman1973

oh well i think its a clogged catalytic converter I'm having it removed early monday morning so hopefully that will fix it

bugman1973

Well its not the cat maybe its a clogged fuel injector. I could have some trash in it I guess. I was driving down the interstate going home and all the sudden the car had like half the power it usually does. Its got spark and fuel pressure and exhaust back pressure what else can it be I'm going to check when I get out of work to make sure. does anyone have any input about this.

RXnos1200

iTrader: (24)

I'd check to see if all 4 plugs are firing. Check the cap and rotor. Then check the compression on the engine.

bugman1973

well i dont have a compression tester but i took the spark plug out of the front rotor made the 3 woosh sounds put the plug back in tried the same thing on the rear rotor only one woosh. i hope this does not mean apex seals or a cracked rotor. i havent been hard on the car. maybe the guy sold me an engine that had more miles then he said it did if so i might just have a problem. this would really suck if that is what that means.

bugman1973

i really need help what is there to do?

Rx-7Doctor

iTrader: (13)

If you are not getting 3 solid wooshes doing the ghetto compression test then I recommend that you put some MMO in the rear housing and let it soak overnight and see if their is an improvement after a day or so.

bugman1973

MMO not familiar with this

Rx-7Doctor

iTrader: (13)

Marvel Mystery Oil, not as caustic as the alternative ATF usage.

Carr4y

Marvel Mystery Oil...

bugman1973

so soaking it in this stuff should bring my compression back?

bugman1973

how long does this take and what do i need to do before i start the car thanks