Over rev :mad:
08-29-2006, 10:23 PM
#11
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Originally Posted by vtec9,Aug 29 2006, 01:20 PM
any idea how fast you were going? if the shift to second only overreved the engine a couple hundred rpms, you're most likely in the clear.
There is some margin.
The seriousness of the situation really does depend on exactly what peak RPM you actually hit.
08-29-2006, 10:24 PM
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Originally Posted by nutar,Aug 28 2006, 09:50 PM
who knows what the guy didi that had it before me
08-29-2006, 11:01 PM
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Originally Posted by mikegarrison,Aug 29 2006, 10:23 PM
I have overreved my engine on the track three times. I didn't have a datalogger the first time, but I know that the last two times I never got above 9700 RPM. When I pulled off the valve retainers and inspected the underside, there was no sign whatsoever of any damage.
There is some margin.
The seriousness of the situation really does depend on exactly what peak RPM you actually hit.
There is some margin.
The seriousness of the situation really does depend on exactly what peak RPM you actually hit.
08-29-2006, 11:03 PM
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Originally Posted by RACER,Aug 29 2006, 10:24 PM
Who knows what the guy did that had after the guy who had it before you
08-29-2006, 11:50 PM
#15
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Youch.. I wish I knew how to check for any retainer damage. If you can hear an audible tick that wasn't there before, it would definately be best to give things a good once-over. Something has become damaged for a noise like that to start.
If a compression test would be helpful at all to you (I sort of doubt it.. a leakdown test really would be the way to go) or if you just need a helping pair of hands, shoot me a PM - I'm in Port Moody.
It would be best to not drive the car, also. If you truely have a valve seating problem, you'll likely end up with a burnt valve (the valve transfers it's heat to the block while seated) in short order if you drive the car.
If a compression test would be helpful at all to you (I sort of doubt it.. a leakdown test really would be the way to go) or if you just need a helping pair of hands, shoot me a PM - I'm in Port Moody.
It would be best to not drive the car, also. If you truely have a valve seating problem, you'll likely end up with a burnt valve (the valve transfers it's heat to the block while seated) in short order if you drive the car.
08-30-2006, 08:03 AM
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Originally Posted by CoralDoc,Aug 29 2006, 02:43 AM
No.
If the retainers are fatigued or cracked they will eventually drop a valve. The adjustment may reduce the symptoms (ticking), but will not prevent the failure.
I wouldn't panic yet. It sounds like you know what to do - do a leakdown test and that will reveal if you have an immediate valve seating problem, even if small. Inspect the retainers and if any are craked or low on the valve replace them. If both procedures do not reveal a problem, you may choose to wait and repeat the inspection after some more miles are on the car.
If the retainers are fatigued or cracked they will eventually drop a valve. The adjustment may reduce the symptoms (ticking), but will not prevent the failure.
I wouldn't panic yet. It sounds like you know what to do - do a leakdown test and that will reveal if you have an immediate valve seating problem, even if small. Inspect the retainers and if any are craked or low on the valve replace them. If both procedures do not reveal a problem, you may choose to wait and repeat the inspection after some more miles are on the car.
If you do decide to change your retainers down the road, you might want to think about running F22 valve retainers (assuming you have an AP1) which are supposed to be a little beefier. Definitely do a leakdown test as recommended.
08-30-2006, 08:25 AM
#19
Yeah, my car just went through this, it'll take time before any damage becomes apparent and power will trickle away to the point ull barely notice until someone else drives the car. Ticking is the dead giveaway and a compression leakdown test will usually tell u all u need to know. Good luck!
08-30-2006, 09:04 AM
#20
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Originally Posted by nutar,Aug 30 2006, 12:01 AM
So does this mean that I will have to pull my retainers to be shure there is no damage?