Like a dumbass yesterday, I miss shifted into 2nd from 3rd at around 6k rpms, now the engine/car is vibrating and sounds strange. I immediately hit the clutch and dropped it into 4th, but apparently that wasn't soon enough.

Engine is a b16a. There are no metallic sounds occurring, but it almost sounds like it is putt putting at idle and lower gears/rpms and I didn't notice it till after I had parked and started the next day.

I'm wondering if I may have bent a valve or if it's something more serious. Any help would be appreciated, I feel like a complete idiot that this has happened.

 

Compression test.

1-2-1 and 2-3-2's normally do some damage.

 

Compression test is in then works and should happen either tomorrow or Wednesday.

 

I worked at Honda years ago as a detailer, a customer did the exact same thing and had to get his engine replaced. Rev limiters work on the gas but not down-shifting .

 

So the compression test is as follows.
1 3 2 4
65 190 185 185

So yeah, cylinders 1 is a good bit off.

 

Buy an automatic and call it a day.

 

Pull the head. Check the valves.

 

Those numbers shouldn't give you those symptoms. Did u try oil over top of the piston? was the motor hot or cold on the compression test?

 

Cracked a valve or something.

 

Curious. Why not?

 

Yeah I'm actually curious too? Can you explain yourself?

 

Everything I've read says cracked, bent or floated valve.

 

I'll gaurntee he cracked a valve

 

I fixed the numbers, I posted the wrong ones. And it's cylinder 1 that's bad with only 65 pounds. I'll have to pull the head this weekend. and yeah, I was figuring that I messed a valve up. What an awesome mistake to be had.

 

Idk how you missed shifted anyway lol

 

Bent valve, happend to my friends B18C5 when racing. 3rd to 2nd at about 8.5 k. Two Bent valves on number 2 cylinder. We fixed it in about an hour.

 

Yes, pull the head check the valves. Hopefully you only bent valves.

I did a 1-2-1 bent 2 valves, and ****ed up the piston in my buddy's built GSR. lol

 

Curious have you compression tested before this happened, just to compare numbers.

 

What? Who cares what it would have tested like before. NOW compression in cylinder #1 is fubarred.

 

its off a bunch its making the other cylnders work twice as hard to spin that crank I but that thing has one hell of a jerky idle and is very sluggish through the rpms..

 

Just a stupid mistake I guess, I'm not real sure how I did it either to tell you the truth. In all the years I've driven stick, I've never done something this stupid. Guess I'm going to be paying for it now :/


Appreciate the help guys. Like I said, I'll be pulling the head this weekend, and I pray to baby jesus that it's only a bent valve or 2.

 

Were you cat-pawing the shifter (placing the palm of the hand over the top of the shift ****)? When I've heard/seen a misshift happen, most of the time the person shifting was cat-pawing the shifter. I always grab the shifter so the palm is on the right side of the shift **** and have never made this mistake, neither during normal DDing or at the track. Pull to the left while shifting for 1/2. Let the shifter go where it wants for 3/4, and push to the right while shifting for 5th.

fm

 

it happens all the time, it's really easy to do.

Pro racers have issues too.

 

I've done it. Never at ridiculous RPMs though.

 

eh, I've done it twice, but the last time I was going slow, at about 3-4k

The first time I did it at like 8900. lol