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Missed a shift now it is dead.

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Old May 11, 2009 | 01:33 PM
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Default Missed a shift now it is dead.

I was driving my car and went to pass a guy on the road and went from 3rd gear into 2nd. Before I could tell what happened the engine shut down. I pulled off on the off ramp that was sloped downward and the car would not restart but it would crank. I was a couple of minutes away from my destination and I decided to try to kick start the car and it started but it was having pretty bad vibration as it idled. I drove the car to a parking lot and parked it. Now it wont restart again. I am not sure what I broke. I keep reading post that say pushrods but everyone that has that problem the car starts and mine doesnt. If anyone has any ideas on what is wrong I would love to here them.
Thanks
Mark
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Old May 11, 2009 | 01:43 PM
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Pull the valve covers and examine things. Bet you have bent pushrods/broken valve springs and/or a valve kissed a piston.
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Old May 11, 2009 | 01:49 PM
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Unfortunately there is no rev limiter to protect you in your situation.
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Old May 11, 2009 | 01:54 PM
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I am going to get it towed home today and hopefully take a look at it if I have time. Lets say that a valve hit the piston am I going to have to replace the piston or just the valve? do you think I did any damage to the trans? rear? clutch? they all seemed ok when I was driving.
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Old May 11, 2009 | 01:55 PM
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Originally Posted by Wicked Weasel @ ECS
Unfortunately there is no rev limiter to protect you in your situation.

Been there done that at the Track.. Was doing about 95mph when I went to grab 4th and got 2nd.. I think I touched 8,000 rpms..

Oddly enough, my car started again, I pulled the valve covers and the push rods all checked out perfect..

I was powershifting when it happend so it makes me think that the added RISING engine rpms helped soften the blow..

I have been racing my car for at least a year after that event and its still alive..
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Old May 11, 2009 | 01:58 PM
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Originally Posted by chuckster
Been there done that at the Track.. Was doing about 95mph when I went to grab 4th and got 2nd.. I think I touched 8,000 rpms..

Oddly enough, my car started again, I pulled the valve covers and the push rods all checked out perfect..

I was powershifting when it happend so it makes me think that the added RISING engine rpms helped soften the blow..

I have been racing my car for at least a year after that event and its still alive..
I wish I were that lucky I think this may give me a reason to do some mods to the car.
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Old May 11, 2009 | 02:08 PM
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How fast were you going when you down shifted to 2nd?
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Old May 11, 2009 | 02:45 PM
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If it turns over freely then it's probably not TOO bad. How was the oil pressure when you got it started the one time? If it was okay, you're probably mostly fine. I'd definitely be pulling the pushrods and taking a look at them though. They could be bent badly enough to cause serious issues running/starting the car, or you could have a dinged the pistons and bent valves/"eyebrowed" the pistons or even broke a valve spring. None of these things are likely to be fatal (unless the pistons were damaged badly enough), but I wouldn't even try to start it right now. Get the valvetrain checked out first.

Dope
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Old May 11, 2009 | 03:01 PM
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you can have the PR's out in 30 minutes, 1st step as stated above
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Old May 11, 2009 | 03:06 PM
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Originally Posted by Dope
If it turns over freely then it's probably not TOO bad. How was the oil pressure when you got it started the one time? If it was okay, you're probably mostly fine. I'd definitely be pulling the pushrods and taking a look at them though. They could be bent badly enough to cause serious issues running/starting the car, or you could have a dinged the pistons and bent valves/"eyebrowed" the pistons or even broke a valve spring. None of these things are likely to be fatal (unless the pistons were damaged badly enough), but I wouldn't even try to start it right now. Get the valvetrain checked out first.

Dope
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Old May 11, 2009 | 03:13 PM
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One of the first things would be to pull all the spark plugs and inspect for damage. If you dropped a valve most of the time the plug will take some direct hits. This might tell you which side of the engine might have the bulk of the damage and where you might want to start looking in more detail.
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Old May 11, 2009 | 05:23 PM
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Your heads are toast you might as well look at replacments since it's usally cheaper then rebuilding your stock ones.

I did the same thing 3-2 instead of 4th. I put a new shifter in the same day. The pistons kicked hit every valve some worse then others. Same thing the car idled but barley. Towed it the shop and did heads/cam and called it a day.

Hopefully your pistons are OK. Don't try and start the car or anything. I am not sure bump starting it was a great idea but what done is done.

Good luck
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Old May 11, 2009 | 08:58 PM
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Originally Posted by dougbfresh
Pull the valve covers and examine things. Bet you have bent pushrods/broken valve springs and/or a valve kissed a piston.
Been there done that....twice. Just rebuilt the whole thing with forged internals. Not really worried about it anymore.

Good luck!
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Old May 11, 2009 | 09:17 PM
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Originally Posted by Johnny Hardcore
Been there done that....twice. Just rebuilt the whole thing with forged internals. Not really worried about it anymore.

Good luck!
If I did the same thing with a forged motor wouldn't the same things be broken?
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Old May 11, 2009 | 09:24 PM
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Also I had to start the car to get it in my driveway the flatbed driver couldnt get it where I needed the car. The car started but still had the same vibration but what I did notice is that when the clutch is out when the car is in neutral I get a tapping noise that I do not get when the clutch is in. Any ideas on that noise?
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Old May 11, 2009 | 10:17 PM
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Probably valve noise. You most likely have bent PRs. Until you pull them out and inspect everything, your just guessing. Start small. Push Rods.

That will tell you a lot.

BC
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Old May 11, 2009 | 10:46 PM
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Find which rods are bent first. Then thoroughly inspect the springs since they are relatively weak to begin with..Also check the plugs as already suggested.
Then worry about a compression check or borescope to see about other damage.

Regardless of what you do first, you gotta take things apart for a looksee.

Good luck.
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Old May 12, 2009 | 04:08 PM
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Originally Posted by Bill Curlee
Probably valve noise. You most likely have bent PRs. Until you pull them out and inspect everything, your just guessing. Start small. Push Rods.

That will tell you a lot.

BC
You sure the noise is coming from the engine BC? From what i read when the clutch is IN and has the engine/tranny disengaged. The noise isn't there.

Either way Mark, I wish you the best of luck to get this sucker back up and running.

Last edited by Dans-Z06; May 12, 2009 at 04:18 PM.
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Old May 12, 2009 | 04:15 PM
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Most people going from 3rd to 2nd have problems due to the speeds involved.

Sometimes people get away with going 2nd to 1st because the car slows itself quickly enough to not cause damage.
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Old May 12, 2009 | 06:41 PM
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Originally Posted by Mark2ooo
If I did the same thing with a forged motor wouldn't the same things be broken?

Yup.
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