High throttle miss

[Texasdoc]

Originally Posted by jhv48

Key to success is preventing a valve from falling into the cylinder once the springs are removed. Buy a good valve spring compressor tool...

Yeah. I learned that today the hard way. You can only take one off at a time. Was able to get the valve back up and reattach the good intake spring.

I have a nice spring compressor - that's how I was able to get the broken one out. Thanks.

[Gaz64]

That's right, only one cylinder at a time at TDC for that cylinder.

[cobrakiwi]

Ouch!
Have not done this job in years, but we used to use a modified spark plug with a compressed air hose fitting welded to it, fill cylinder with compressed air to hold the valves up, one cylinder at a time.
You were lucky not to drop a valve there
Good luck on your repairs.

[Texasdoc]

Yeah, I had the compressed air running, but the intake valve slid down the guide when I tried to compress the exhaust spring. Lucky for me, I had the piston most of the way up, so it caught the valve before it fell completely into the cylinder. I was able to slowly raise the piston until I could grab the valve.

[olddog]

Count yourself as lucky. If a keeper would have slipped off and let that valve drop, a calamity of epic proportions would have come your way. This is why I tried to steer you to look at this. It's a simple fix now, but would have made you sick, if you would have kept running it.

Good Luck moving forward.