LS Valve Spring Replacement! We messed up, DON'T do this! Can we get the car to run again?

Today on Bernie Rubbers Garage we welcome Hooman's 2003 Z06 and replace the valve springs. While there, we mess up. Complete rookie mistake but oh well. Can we get the car to run again? Find out!
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#c5 #c5corvette #corvette #c5z06 #z06 #chevrolet #chevroletcorvette #chevroletz06 #hpde #track #race #mods #valvesprings
Keywords:
c5, corvette, z06, chevrolet, chevy, valve springs, diy, rookie mistake, oops

[@saintvilp]

We’ve all done screw-ups. Just be glad it wasn’t catastrophic!!

[@darkstars3247]

It takes a lot of guts to post your own mistakes in a video. But this video will definitely help others not make the same. So I appreciate you kind sir we’ve all been there for sure lol

[@gonefishing7813]

Glad you got it straight…my Z06 was built right in the middle of the “valve spring” problem window…the older the car and I got the more I was worried about the problem. I’m perfectly capable of doing the job…but given my advancing age and waning patience levels I for first time since I bought the car new in 2002 I sent it out to a Corvette specialist in my area…The car was gone two days…they did a beautiful job…the reason I sent it out was as you showed us shit happens to everyone no matter the experience level. Thanks for being willing to show your mistake…not common on KZbin

[@ImNotHereToArgueFacts]

At least you didn't drop a valve onto a piston at the bottom of the stroke.😊 That's what I was thinking was going to happen.

[@garymaya1767]

You could have just pushed up the piston to the tdc on each cylinder and saved a lot of time.

[@Mattschindig]

I'm guessing the compression tester hose used for this was from Harbor Freight? Happened to me when doing my motorcycle. Snap On compression tester hose, no issues.

[@bernierubbersgarage6066]

I don't remember but it was a cheap one! Good to know though.

[@josels1292]

Same for a A4 C5 I would guess? Lift the rear place it in neutral and spin the wheels?

[@alexgilmour5555]

Sorry, I don't think that will work with an automatic? You'll have to find a way to turn the engine with the balancer bolt. I have replaced mine with an aftermarket, and there is no tool made that will allow me to get a wrench or socket on the balancer bolt.

[@milojanis4901]

Just use a remote starter.......

[@billbob9570]

why arnt you looking at the camera

[@bernierubbersgarage6066]

Trying something different lol

[@sundevilsooner6714]

LOL. We've all been there. Next time, skip the compressed air. You don't need it. Just lift the rear wheels slightly, put the car in 6th gear and rotate the rear wheels to rotate the engine. Use the piston to hold the valves up. I did it this way, it worked like a charm, and it's WAY safer than possibly blowing an air fitting and dropping a valve.

[@bernierubbersgarage6066]

We did talk about doing this but I didn't like the thought of resting the valves on the piston. I know they wouldn't get damaged but I had the tools so figured we would just use compressed air. But I didn't think we would be so stupid and thread lock the tool into the head 🤣

[@TheDaviro47]

So when you do it that way do drive the valve springs down first and then rotate the wheels and wait till they poke up? Also did you still do it in the firing order, do you disconnect your battery and does it all start up normally

[@alexgilmour5555]

@@TheDaviro47 We didn't drive the valves down. We did it in the firing order, just watch the valves to know where you are in the power stroke, and verify the piston is fully up with a pencil through the spark plug hole. I've done valve changes like this for 40 years, it's safer than compressed air, and easy. I always disconnect the battery when I'm working on the car, just as a general safety precaution. Car started up on first crank and runs perfectly. Have about 5K more miles on the car since I swapped valvesprings.

[@alexgilmour5555]

*Valvespring changes

[@bazjones8075]

I use twine rope and fill the cylinder with the rope through the spark plug hole and turn over engine by hand until piston and rope holds up valves. The rope acts as a cushion while compressing springs.