Mechanical Over-rev
06-16-2009 | 03:53 PM
#11
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From: Covington WA, USA
Originally Posted by chris2k03,Jun 16 2009, 03:46 PM
I plan on changing the retainers and keepers soon. Do you think in doing that I will prevent a valve from dropping in the future?
06-16-2009 | 03:55 PM
#12
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Originally Posted by Deception,Jun 16 2009, 02:50 PM
did you hit the redline?
This was the first and hopefully the last money shift I will do on this car.
06-16-2009 | 04:32 PM
#14
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From: Scotland
If you do a leakdown then it can show you how well the valves seal and therefor hopefully show that they aren't bent... if you can swap the retainers over then it should stop the valve from dropping 
sometimes the cracks aren't even that visible and is best to swap them regardless...
I am not sure if taking the head off and having a look at the head would be necessary unless the valves leak then it might be a good idea just to see how damaged the pistons are or any evidence of piston on valve contact
sometimes the cracks aren't even that visible and is best to swap them regardless...I am not sure if taking the head off and having a look at the head would be necessary unless the valves leak then it might be a good idea just to see how damaged the pistons are or any evidence of piston on valve contact
06-16-2009 | 04:53 PM
#15
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it should be fine..i let my buddy drive my car for the 1st time on the back road. and he mis shifted from the top of 2nd into 1st i and depressed the clutch right away and i kno he has to let go the clutch all the way because i have a single plate and the engagement point is centimeters from fully depressed..took the car in the shop next day compression test and dry leak dwn.. all was fine and danddy..but maybe i was lucky...
GOOD LUCK
GOOD LUCK
06-16-2009 | 05:12 PM
#17
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Originally Posted by KchaoS2K,Jun 16 2009, 03:53 PM
it should be fine..i let my buddy drive my car for the 1st time on the back road. and he mis shifted from the top of 2nd into 1st i and depressed the clutch right away and i kno he has to let go the clutch all the way because i have a single plate and the engagement point is centimeters from fully depressed..took the car in the shop next day compression test and dry leak dwn.. all was fine and danddy..but maybe i was lucky...
GOOD LUCK
GOOD LUCK
To the OP, if you were going to replace them anyway... this might be a good time to do it!
06-16-2009 | 06:21 PM
#20
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From: The Great Kanto Desert, Az
a similar thing happened to me. It was about a year ago when the over rev happened. with slight bogs only during idle. about 3 months ago the cel came on with multiple misfires. Before this there was never any cels and the car seemed to drive perfect. took it to SOS and found I had some bent valves. The repairs are expensive so i'm not sure what i'm going to do now.