Cts V dropped a Valve!!!
04-29-2012, 08:08 PM
#63
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Where can a guy buy a set of the yellow valve springs? I think I'm going to do them as preventive maintenance.
Last edited by DougNuts; 04-30-2012 at 09:10 AM.
11-23-2012, 05:35 PM
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Man my schedule has been crazy! I finally got around to pulling the engine. Had the head checked and repaired. Cylinder walls are perfect. I went ahead and bought a set of gm ls6 springs(updated?). I was expecting yellow, but they turned out being blue. As long as they aren't grey!
Anyway I ran into a snag when I pulled the piston and rod. The one that I got to replace it looks different? Put a caliper on it and it all measures the same.
Anyway I ran into a snag when I pulled the piston and rod. The one that I got to replace it looks different? Put a caliper on it and it all measures the same.
11-23-2012, 09:06 PM
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Found this. This was the first I heard they changed anything in the LS6. My apologizes. Might have a hard time finding 2005 specific LS1/6 rod and piston.
I noticed your piston has a clip for the wrist pin so I searched floating wrist pin LS6 and found this post.
I noticed your piston has a clip for the wrist pin so I searched floating wrist pin LS6 and found this post.
Awesome, thanks dude!
New for 2005: "The 5.7L LS1 and LS6 V-8s are equipped with new floating-pin pistons. First introduced on GM Powertrain’s Vortec 6000 H.0. V-8, these pistons feature wrist pins that “float” inside the rod bushing and the pin bores in the piston barrel. Previously, the LS1 and LS6 used a fixed-pin assembly, in which the connecting rod is fixed to the piston’s wrist pin, and the pin rotates in the pin bore. Snap rings now retain the wrist pin in the piston, while the rod moves laterally on a bushing around the pin. The floating pins were introduced as an interim change late in the 2004 model year."
New for 2005: "The 5.7L LS1 and LS6 V-8s are equipped with new floating-pin pistons. First introduced on GM Powertrain’s Vortec 6000 H.0. V-8, these pistons feature wrist pins that “float” inside the rod bushing and the pin bores in the piston barrel. Previously, the LS1 and LS6 used a fixed-pin assembly, in which the connecting rod is fixed to the piston’s wrist pin, and the pin rotates in the pin bore. Snap rings now retain the wrist pin in the piston, while the rod moves laterally on a bushing around the pin. The floating pins were introduced as an interim change late in the 2004 model year."
11-23-2012, 11:51 PM
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Found a link that seems to say that I have a fourth gen rod? http://forums.corvetteforum.com/c6-f...s3-vs-ls6.html
My rod is actually in good shape, the bearings still looked good too. Anybody know the part # for the piston I need? I think I'll just reuse this rod with new bearings and bolts.
My rod is actually in good shape, the bearings still looked good too. Anybody know the part # for the piston I need? I think I'll just reuse this rod with new bearings and bolts.
03-13-2013, 04:08 PM
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Finally got the engine reassembled! Dropped it back in yesterday. I decided at the last minute to go ahead and replace the flywheel and clutch with a complete ls7 set up from one of the vendors. Hopefully she'll be back on the road soon!
03-13-2013, 06:43 PM
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Btw, I ordered part #12499224 from two different locations trying to get yellow springs. I got blue both times. I decided to roll with the blue ones! Any reason I should be worried?
03-13-2013, 07:15 PM
#75
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Those are the updated LS6 springs. Surprised that you are going with the beehives again after such a costly repair. The step up to dual springs is well worth the investment. Brain Tooley springs are the way to go here.
03-13-2013, 07:39 PM
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I'm hoping it was a combo of it being a fluke as far as the bad spring, and/or the previous owner over reved it alot. Most people that I've talked to that know these engines, seem shocked that one failed on a stock motor. As a matter of fact I sold the other set of springs to a tech at the local dealership for an engine he's building for his personal car. I got these for 60$. I would love to have duals, but cheapest set up I could find was $350ish. that's more than I had spent on the entire repair before I ordered the clutch today. I'm on a tight budget at the moment! Ported heads and a cam are on the wish list and it'll definitely get duals then.
03-13-2013, 07:48 PM
#77
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Totally understand the budget thing. I know your position, but thought I would throw this in for the purpose of the thread. Those should be good to go for a long while with a stock cam. However, with beehives, when they break there is no insurance. Dual springs keep the valve from dropping and save a LOT of time, money, and aggravation.
Here is a complete kit from Brian Tooley (which is one of the best guys you could ever deal with BTW) for only $209.
http://www.briantooleyracing.com/660...retainers.html
Here is a complete kit from Brian Tooley (which is one of the best guys you could ever deal with BTW) for only $209.
http://www.briantooleyracing.com/660...retainers.html
03-13-2013, 08:40 PM
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