Miss Shift Damage? - Team Camaro Tech
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Old Nov 24th, 07, 05:37 AM   #1 (permalink)
 
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Question Miss Shift Damage?

ok i jsut got off work, very tired. i get on the onramp and decide to mash the pedal. shift nicly into second. and the top of second i go to throw it into third and if im not mistaked i think i accidental threw it into first. when i released the clutch the back end starting flipping out. so i jammed the clutch back in and corrected my problem. i guestimate i was going about 90 mph when i thre it into first. it seemed to drive fine the rest of the way home. think there could be any damage and if so what?
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Old Nov 26th, 07, 05:19 PM   #2 (permalink)
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Re: Miss Shift Damage?

In all likelyhood it will be fine but just to be sure it would be a good idea to take a look at all the attaching points to the chassis.

Milan
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Old Nov 26th, 07, 10:16 PM   #3 (permalink)
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Re: Miss Shift Damage?

Engine damage would be my biggest concern. Your rev limiter will not keep the engine from winding out beyond the limit when a force is applied from the drivetrain. If it runs fine you got probably got lucky.
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Old Nov 26th, 07, 10:32 PM   #4 (permalink)
 
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Re: Miss Shift Damage?

First of all I'd be worried about bent valves and even PtV contact.
If it's no missing or rattling unnecessarily, go buy a lottery ticket!
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Old Dec 3rd, 07, 06:40 PM   #5 (permalink)
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Re: Miss Shift Damage?

I'd check to see that the pushrods are all still straight. It's a weak link in the valvetrain.
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Old Dec 4th, 07, 10:05 AM   #6 (permalink)
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Re: Miss Shift Damage?

Yep, more thank likely you are just fine.

But in an LS1 you will bend the pushrods before anything else when you miss a shift like that.
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Old Dec 4th, 07, 03:27 PM   #7 (permalink)
 
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Re: Miss Shift Damage?

chances are the tires broke free before anything else...i`d say you`re prolly fine...but look at the trans and engine mounts...
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Old Dec 5th, 07, 09:13 PM   #8 (permalink)
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Re: Miss Shift Damage?

Quote:
Originally Posted by kustomwerker View Post
chances are the tires broke free before anything else...i`d say you`re prolly fine...but look at the trans and engine mounts...
Even though the tires broke loose, It's still very simple to mechanically over rev the engine.

If your car doesn't sound like a sound like a sewing machine right now, count yourself lucky. This is one of the most common sources of valvetrain damage.
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Old Dec 6th, 07, 04:31 AM   #9 (permalink)
 
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Re: Miss Shift Damage?

it is absolutely possible to over-rev the engine mechanically...i`m not saying it isnt...i`m saying that at his quoted 90 mph, it would`ve been difficult at least to get it into 1st...dropping the clutch with such a drastic difference between allowable speed and actual speed would`ve fragged the tires instantly...it isnt like going from 5th to 3rd, where you have a huge mechanical advantage from trans to motor...from 3 to 1, the mechanical advantage is hugely reduced...as 1st is the best mechanical advantage from motor to trans, its worst in reverse...am i making sense???this is why it`s easier to pop start a car in a higher gear than a lower gear...in such a case, the m/a would be better in 5th than 1st...
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Old Dec 6th, 07, 07:53 AM   #10 (permalink)
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Re: Miss Shift Damage?

Quote:
Originally Posted by kustomwerker View Post
it is absolutely possible to over-rev the engine mechanically...i`m not saying it isnt...i`m saying that at his quoted 90 mph, it would`ve been difficult at least to get it into 1st...dropping the clutch with such a drastic difference between allowable speed and actual speed would`ve fragged the tires instantly...it isnt like going from 5th to 3rd, where you have a huge mechanical advantage from trans to motor...from 3 to 1, the mechanical advantage is hugely reduced...as 1st is the best mechanical advantage from motor to trans, its worst in reverse...am i making sense???this is why it`s easier to pop start a car in a higher gear than a lower gear...in such a case, the m/a would be better in 5th than 1st...
Oh yea, It makes absolute sense. I just wanted to make sure that everyone understands that just because the tires break loose, it's still possible to over rev. I've seen that misconception on other boards and didn't want to get it started here.
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Old Dec 7th, 07, 04:22 AM   #11 (permalink)
 
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Re: Miss Shift Damage?

right on ryan...
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