Good mechanic for rx8 in islamabad

[drmac]

thank u all for taking the time to respond.
ahad sahib thanks for the detailed reply.have kept rx-7s for around eight years.they would exhibit this type of behaviour but a change of plugs would usually cure it.ofcourse i was residing in karachi in those days and hi-octane was no issue.the rx-8 i bought after along time hence a bit out of touch.there are no oil leaks,no exhaust smoke on start up or on the move,oil/filter changed on time(does not consume any oil)use super fuel as only that is available in pesh.the knocking is present only on full throttle and is sometimes present above 4000rpm,but at time it pulls smoothly through the gears right to the redline.heavy smell of fuel on startup which remains for around five minutes and then subsides.hope have answered all u r questions.and dear thanks again.keep up the good work

[ahad676]

@drmac: I'd once again suggest you arrange some hi octane from somewhere cuz i strongly believe it will solve your knocking issues. You clearly cant seem to solve the issue so I'd say in the circumstances its something you should consider. Mazda itself urges ppl to use 91 octane.

cheers(Y)

[displacement_on_demand]

@ahad676

Totally correct... if the car is kocking... use high-octane fuel not just for RX-8 or other sport cars.

[drmac]

thanks ahad. will be going to islamabad in a couple of days.will do what u suggest.my contact no is 0300-8592040.if u can sms me u r contact no i will get in touch with u when i come over.

[hash4u]

a bit curious can it be coil problem? coil not giving full current supply? my uncle had an RX8 and the check light light up.on diagnosis found out coil problem.however the car drove perfectly normal even with the check light on

[drmac]

hash4u. had the coils checked out initially,first one was not giving the proper current so i got a new one from karachi and installed it.anyway got a gallon of octane through a friend from islamabad today.there is a huge improvement in the performance of the car.there is only slight knocking at full throttle while the jerks are no more.a bundle of thanks to all those friends out there who helped.i have already posted my cell no.if any pakwheeler ever needs my help he will be most welcome.

[ahad676]

@drmac: Good to see the hi octane solved the problem. You're gonna need to use hi octane only to completely get rid of the knocking. Most Rx-8s have failed miserably in Pakistan due to tiny issues like these. Knocking is a serious issue in a rotary engine and must never be taken lightly. Anyway good luck with the car feel free to contact me whenever you need any other help.

Cheers(Y)

[drmac]

thank u sir.i will.

[hash4u]

the whole issue was bad fuel !
damn..........

still wonder how rora brothers drive MB and performance cars on peshawar fuel

[nazeef]

Knocking (also called knock, detonation, spark knock, pinging or pinking) in spark-ignition internal combustion engines occurs when combustion of the air/fuel mixture in the cylinder starts off correctly in response to ignition by the spark plug, but one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
The fuel-air charge is meant to be ignited by the spark plug only, and at a precise time in the piston's stroke cycle. Knock occurs when the peak of the combustion process no longer occurs at the optimum moment for the four-stroke cycle. The shock wave creates the characteristic metallic "pinging" sound, and cylinder pressure increases dramatically. Effects of engine knocking range from inconsequential to completely destructive.