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Valve spring compressor tool.... how does this one work?

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Old Mar 13, 2016 | 11:44 PM
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Default Valve spring compressor tool.... how does this one work?

While it's not for my C5, it is tech related. I'm in the process of changing the rockers and valve springs on my 3800 L67 so I picked up a valve spring compressor tool from my local tool store. On the box it states that it will remove/compress the valve springs without removing the cylinder head... It comes with no manual / instructions / pictorial and I'm having a hard time figuring out how to use this without having to remove the head. Every other valve spring compressor that I've seen that looks like this hooks around the head once it is removed... which is clearly not what I want to do.

Can anyone see how this is supposed to work?



Thanks!
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Old Mar 13, 2016 | 11:59 PM
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You have to remove the head for that one, one end goes against the bottom of valve and the other compresses the spring
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Old Mar 14, 2016 | 12:04 AM
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Old Mar 14, 2016 | 01:21 AM
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take it back and buy one like in the video posted above, lots of companies out there make them and they will run you roughly $75
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Old Mar 14, 2016 | 09:03 PM
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Take that back and buy this.


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Old Mar 15, 2016 | 12:46 PM
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As you probably know, with any on head valve spring removal tool you need to make sure you prevent the valve from dropping into the cylinder when you remove the spring.
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Old Mar 15, 2016 | 08:27 PM
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Originally Posted by Paul 75 L82
Take that back and buy this.
You can't beat this tool. Used one to do my valve spring swap.
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Old Mar 15, 2016 | 08:46 PM
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Summit sells a nice kit and screws into the plug hole to connect your compressor to keep your valves up. It works great.
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Old Mar 15, 2016 | 09:12 PM
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Thanks guys. I ended up making my own tool from a steering wheel puller. Works great and didn't cost me a dime since I already had it. Saved me the run around too.

I've finished one bank, leaving the other side for tomorrow. I've put each cylinder at TDC and used the compression tester hooked up to my compressor to provide pressure... although I did let the pressure drop a few times and I noticed that the valves still stay up with the "stick-tion" from the valve stem seal.

I'm actually putting LS6 springs in my 3800 supercharged engine so this remains somewhat Corvette related
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