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Trouble after valve spring change

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Old Dec 20, 2012 | 09:37 PM
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Angry Trouble after valve spring change

I changed out all 16 valve springs to 6.1 exhaust springs. I cranked it by hand and everything seemed to be fine. Finally got everything buttoned up and it doesn't want to start.

If I keep the throttle down it will sputter and kinda run for a few seconds. Sounds bad though. I'm pretty sure the coil wires are where they're supposed to be. I'm going to do a compression test tomorrow to see if anything shows. No issues with dropping valves or anything like that.

Any ideas of something I could have missed?
 
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Old Dec 20, 2012 | 11:31 PM
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I would say plug wire firing order problem most likely
 
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Old Dec 21, 2012 | 01:31 AM
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No plug wires for him to mess up, its a hemi swap. Did you make sure your pushrods were seated right when you buttoned up the rockers?
 
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Old Dec 21, 2012 | 04:44 AM
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That funny ! My hemi has plug wires
 
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Old Dec 21, 2012 | 09:42 AM
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I taped the coil and extra plug wire together and labeled them as I went to make sure they were right. I confirmed they are right by looking at the numbers on the wires.

I was pretty paranoid about the pushrods being in the rockers correctly. The one intake shaft was a little difficult to get on, maybe I'll look there first. Thanks guys.

We're getting a blizzard today so we'll see what I can get done. It would be so nice if my truck would fit in the garage
 
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Old Dec 21, 2012 | 10:56 AM
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When you find the problem can you post it please? I'm planning to do a cam and spring swap in spring and it would be nice to know the possible problems before i do
 
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Old Dec 21, 2012 | 12:35 PM
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Good luck
 
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Old Dec 21, 2012 | 08:29 PM
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Did a compression test and it's pretty screwy.

8-0
6-115
4-0
2-120

7-didn't bother
5-65
3-65
1-120

Not sure what the hell happened. I'm going to take it apart tomorrow and see what's going on.
 

Last edited by T-Muns; Dec 21, 2012 at 08:32 PM.
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Old Dec 21, 2012 | 09:44 PM
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#4 & 8 definitely have some stuck open valves. I think that's the worst spread on a compression test I've ever seen. You better get in there.
 
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Old Dec 21, 2012 | 09:53 PM
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Check and double check the timing.
 
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