Dear all;
my 93' FD still "sleep" about 2 mouth, after Dyno test.
the engine idel now show stable. no black smoke. but the pressure meter show "shaking" and the engine vibration, some sound "ka ka ka" come from turbo.
why? this situation is blown engine?
i am already change new plug, all turbo gaskit.
map sensor have connect hose.
Now, the car no more power at before 2500rpm and the pickup become slowly the pressure meter only to go 0.73 bars (before 0.85).
Hong kong mazda company no suitable compression tester. So i can't test the compression untill now.
i need more information please help.

 

FIRST things first. Type in sentences so the rest of us can understand. Your post sounds like a bunch of jibberish, please clarify!! Spell check wouldnt hurt either.

 

sorry for my poor engish.
i'm want to know more symptom of engine blown.
because the engine have good idle, but no smoke come out.
i'm hope you understand.

 

I'm a newbie here but OneBadRx7 take it easy on the guy. Its obvious by his sig thats he's in China which means english probably isn't his first language. I admire the fact that he's able to type at all in english, God knows my chinese sucks rocks probably like most of us here.

Jack- Try to find some way to have a compression test done that's the only real way to tell whats happening. With that said, it sounds like the turbos are shot more than anything.

That's my best guess. I'm sure there are guys on the board that surpass my knowledge on the matter and can help you more.

Good luck!

 

0.73 bars is about 10.5-10.7psi which is what your suppose to be getting, perhaps before you were just over boosting to 0.85 which is near 12.15-12.45psi.

what exhaust system are you using? i think that it might have become stuck if its the stock system.

What other modifications do you have?

 

That's great. He's from Hong Kong genius! And do you see a spell check feature on this forum? Didn't think so. Funny thing is that I understood what he was trying to convey....

 

Just thought of something...

Are you hearing the "ka ka ka" noise all the time or after the turbos are in boost?

 

Thankyou everybody.
i'm very happy your reply my question.
My Fd have full exhaust and have ARC intake box, Power FC ECU, remove air pump(Greddy Pully kit),shock turbo & engine.

P.S. I want to attach a movie for my express but i don't how to do?

 

Sounds like a cracked Apex seal to me

 

HEHE, I didnt notice where he was from. I understood most of it but it wasnt the easiest thing to translate.

 

On the PFC, what does your vacuum show at idle?

Does your engine vibrate so bad at idle that it shakes the car? How many km on the engine?

Same symptoms as mine.. Boost gauge was showing ~10 of vacuum. Not good.

After taking the engine apart looked like I spewed 4 apex seals!

 

Cavellm:
the PFC vacuum show -0.22 to -0.37.
the engine already run 74000 km.
the engine vibrate at idle, no happen on running(over 2000rmp)

 

Hey Jack

Your car has SARS. It's terminal. Time to get another engine.

 

Dear all,
The PFC Vacuum show -0.22 to -0.28 bars at idle at 850rpm.

 

go to www.mazdatrix.com and get the compression tester (maybe it's called something else) from them. I'm sure they're ship it to Hong Kong as long as you pay the shipping charges. Have you changed all the vaccum hoses? Also, check all your solenoids and actuators and make sure they're all functional. That way, you can eliminate the possibility of those components being the culprits. But I would get that compression tester first though. BTW, which part of Hong Kong you live in? I came here 11 years ago from Happy Valley. I really miss that happy place. Late