isn't the ultimate the first 98 RON available in OZ?
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isn't the ultimate the first 98 RON available in OZ?
I'm pretty sure the Shell Optimax 98 came out first in Australia in both Victoria and NSW by around 1.5 years before BP Ultimate :)
Synergy 8000 came out before BP Ultimate in Victoria. But interstate, I think it was a diff situation.
Is Vortex 98 out in Victoria yet? I've been waiting for a long time, so I could use the Safeway receipts there.
May sound like a stupid thought but your car is sitll new & running in. I would probaly hold off untill 10,000km serivce and see how you go with some new oil? only a thought.
And i may be wrong but i'm sure at around 3,500-4,000rpm the 2nd cam kicks in? it quite possibly could be a top end issue? i think at the 40,000km service it all get's re-aligned? so maybe your valve clearance isn't right?
It would not pinging, knock sensor would be retarding big time to comp for the bad fuel and if it would be that bad the CEL would be on from bad readings from the knock and also 02.
But in all those 3 statements i'm only really guessing.
New cars are not meant to ping. Changing engine oil won't help it as pinging is pre-ignition.Quote:
Originally Posted by tknova
2nd cam kicks in at 6000rpm.
^^^ changing spark plugs to one heat range colder would help.....
why? what would that achieve given the subject at hand?Quote:
Originally Posted by dsp26
It's just masking the problem and not a solution to the cause of the problem.Quote:
Originally Posted by dsp26
BTW, the Euro uses Iridium heat range 6 plugs from the factory.
Some problems with posting messages tonight?
Anyway, forgot to mention - have u definitely checked the Oil Level well?
Just thinking if this happens on certain angles, it might have to do with oil consumption (which may happen on some Euros?) and not enough lubrication to some parts some times?
Otherwise, I still think some type of resonance with something in engine bay. :)
I think we all know new cars are not meant to ping but i think that was already ruled out. I'm sure if your euro was pinging the knock sensor would ajust timming accordingly. or even raise a CEL if the knock sensor or 02 sensor is not working correctly. Euro's run pretty rich from factory anyway.Quote:
Originally Posted by aaronng
I know the hi-cam kicks in at 6,000rpm but there is an audiable change at around 3,000rpm & around 4,500rpm on WOT that i hear on my euro even (and it sounds good) and this is where the problem is which is as stated above and thats why i'm leaning towards something in the top end of the motor which is not right. Valve gear to be re-aligned maybe (like the 40,000km service) even though this car is pretty much brand new anything can go wrong from factory.
I think if the euro was pinging you would surely know about it and you wouldn't be trying to guess if it was pinging or not. If the euro pinged. knock sensor would detect and ajust and if the knock did not ajust it would HAVE to raise a CEL.
Yep ... came to that conclusion as well a few posts ago ... it isnt pinging. However you raised an interesting point about the cams/valves and adjustment/alignment. I dont know how the variable timing/variable lift is implimented in the vtec motor (although I understand how it all works in a regular engine), but I'm imagining its involved and requires a high level of mechanical precision.Quote:
Originally Posted by tknova
I've always felt my Euro is 'not quite right' since new. Although it has loosened up nicely since around the 5000km mark, I still feel it is reluctant to rev at times ... sometimes its hesitant, sometimes it like little flat spots as the revs climb higher. I'm talking about rpms from 3000 up to 6000, not under 3000 ... the engine is fairly sedate down there, although its smooth and adequate enough.
Where I get the chance I like to open up the throttle full when on a good uphill run ... like the long on-ramp onto the M7/M2 coming off Old Windsor Road ... starting a 70km/h at the bottom and hitting the top before the merge at 130+km/h ... either in 3rd or 4th. Should be smooth and linear right? Well it isnt ... ok crossing the 100km/h mark, but then there is a series of minor stutters while its climbing up to 120km/h and above. I'd almost think its mis-firing, but I know its not that.
Putting all of these events together (including the occassional valve noises that started this thread) , I'm sure my first suspicions are right ... the vtec is not working the way it should when under some form of load and heavy throttle acceleration.
So the question is ... is the vtec/valve/cam timings settings a serviceable item? Can it be tuned and/or adjusted? or would I be wasting my time asking the dealer to check it out and do something about it?
those item will be serviced at 40000km, according to my experience anything that is not listed in service schedule even if you ask for it the dealer will say "yes we can fix that, here is your bill for all the things you asked". but no they didn't even look at it cause it's not in their schedule.
Well the Euro's Engine + ECU has a pretty big dead spot in the 5000-6000rpm range. So that's expected. The VTEC rush at 6000rpm is rather 'artificial' because of this, as it is barely continuing on what it would have been producing if the power curve from 5000-7300rpm was completely smooth.
Although at lower RPMs, flat spots should indicate a problem. As the mods will say - just take it back to the dealer to take a look... and scream your head off in their office if they don't look at it. Also, you might want to consider writing to Honda about it.