S2000 Under The Hood S2000 Technical and Mechanical discussions.

Mechanical Over-rev

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Old 09-08-2005, 06:47 AM
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the rev limiter prevents over revving due to too much throttle.
Old 09-08-2005, 07:25 AM
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The rev limiter does nothing for those who downshift into too low of a gear causing a 'mechanical overrev.'
Old 09-08-2005, 08:07 AM
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Originally Posted by Danny_Spain,Sep 8 2005, 07:13 AM
sorry for my bad knowleadge, but how is posible over rev the engine if the car has a over-rev limiter ??
Put yourself on a direct drive bicycle where you CANNOT stop pedalling and let the wheels rachet by. You are your own "limiter" as you can only pedal as fast as your own strength will allow. You cannot pedal any faster UNLESS someone comes up behind you pushes you faster. Your little legs will go faster and faster until you break your ankles and kneecaps. This is what a "mechanical" over-rev does to your engine in a car.
Old 09-08-2005, 08:32 AM
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That brings backsome bad childhood memories... thanks... I'm going to go cry in the corner now.
Old 09-08-2005, 11:04 AM
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Sorry!
Old 09-10-2005, 06:07 PM
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UPDATE:

I pulled my valve cover again today and inspected the keepers and retainers. All the keepers seemed flush with the retainers and they all were fairly uniform. I was wondering if I should do anything else to check this engine out. Does anybody have any suggestions? I feel the engine runs as normal and don't hear any noises. The power is the same as well.
Old 09-10-2005, 06:16 PM
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Don't do it again. I just dropped down to zero in compression in 2 cylinders yesterday after an over rev. It's not pretty, man I dont know where to go from here. Prolly gonna need to pm billman, and the under the hood forum should become my best freind over the next few months. I really dont know if I hsould just by an f22c or rebuild my current engine with a stroker kit. I'm 18 so the money is kind of limited. Any help from any one will be great!
Old 09-10-2005, 06:19 PM
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What gear did you miss? the 3rd to 4th ? How fast did you go? That really sucks to hear dude. Have you pulled the valve cover off to take a look?
Old 09-10-2005, 06:49 PM
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No, I havnt looked under the valve cover yet, I really dont even want to. My car barely starts and runs and have no compression in 2 cylinders, I'm sure its done for. I was going from top of 3rd to 4th, when I accidently went into 2nd gear. Not sure how fast I was going but it was probably what ever the top speed in 3rd is in f20c. Now this is the second time this has happened. The first time it was all good, no problems, this second time definitely did it for me. Just be carefull to not do it again. And I only had 30k miles on the car. I guess with every problem that arrises there is always a good solution, hopefully before spring i'll be sporting some type of bad ass new engine.
Old 09-10-2005, 07:25 PM
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Originally Posted by 321contact,Sep 10 2005, 08:07 PM
UPDATE:

I pulled my valve cover again today and inspected the keepers and retainers. All the keepers seemed flush with the retainers and they all were fairly uniform. I was wondering if I should do anything else to check this engine out. Does anybody have any suggestions? I feel the engine runs as normal and don't hear any noises. The power is the same as well.
I think you can consider this one a "freebie" and can get on with life. Next time .............................


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