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-   -   3.2 Jumped time on one bank (http://986forum.com/forums/performance-technical-chat/36375-3-2-jumped-time-one-bank.html)

Jager 07-18-2012 05:37 PM

This is turning-out to be a fun thread! I hope you don’t have any valve damage. I’m curious to see what Jake asks you to do as he walks you through this. Keep the pictures coming!

Jake Raby 07-18-2012 05:52 PM

Ok... Just as I suspected. You need to check for collateral damage now. Do you have a leak down tester?

If the valves aren't bent, I have a fix for this. If the valves are bent, or even the pistons screwed, I have a fix for that too. Hell, we pray for a failure like this, everything we have had lately looks like this.

https://sphotos-a.xx.fbcdn.net/hphot...52000333_n.jpg

feelyx 07-18-2012 06:45 PM

If you don't have a leak down testor you can improvise with this little trick, hook up your compressor to it and listen in the exhaust and intake for leaks.... you can also lay paper over the in/ex opening to see if any physical movement....
http://986forum.com/forums/uploads01...1342665896.jpg
Just make sure you don't seal the hole through the center...

Jake Raby 07-18-2012 07:00 PM

Pull the cams first.. Otherwise you will have valves that are held open and will give a false indication.

edwardneff94 07-18-2012 07:16 PM

Quote:

Originally Posted by Jake Raby (Post 298149)
Ok... Just as I suspected. You need to check for collateral damage now. Do you have a leak down tester?

If the valves aren't bent, I have a fix for this. If the valves are bent, or even the pistons screwed, I have a fix for that too. Hell, we pray for a failure like this, everything we have had lately looks like this.

https://sphotos-a.xx.fbcdn.net/hphot...52000333_n.jpg

It good to know that no matter what you have a fix. As for the leak down tester no i dont have one. Just a compression tester.

edwardneff94 07-18-2012 07:21 PM

Quote:

Originally Posted by feelyx (Post 298153)
If you don't have a leak down testor you can improvise with this little trick, hook up your compressor to it and listen in the exhaust and intake for leaks.... you can also lay paper over the in/ex opening to see if any physical movement....
http://986forum.com/forums/uploads01...1342665896.jpg
Just make sure you don't seal the hole through the center...

I will see about building one tomorrow after work. My compression tester has an air fitting where the dial hooks on so i will see if that might work also. Thank you again for all your help.

Jake Raby 07-18-2012 07:22 PM

With a compression tester kust pull the schrader valve out so air will pass the opposite direction and you are good to go.

Pull the cam assemblies..

edwardneff94 07-19-2012 03:45 PM

Todays update, I just finished testing each cylinder and here are the results, cylinder #1 gave me a nice cooling breeze from the intake, while cylinder #2 helped to beat the 105 degree heat with a breeze from the exhaust, cylinder #3 was the only one that did not have a leak.
http://986forum.com/forums/uploads01...1342741333.jpg
Pic of test on cylinder #2
http://986forum.com/forums/uploads01...1342741391.jpg
Plugs from left to right, #3,#2,#1

feelyx 07-19-2012 04:51 PM

Did you tap on the valves to make sure there is nothing stuck under them? Chances are they are bent... but you never know........

Jager 07-19-2012 05:48 PM

I would test the other side too.

Jake Raby 07-19-2012 05:55 PM

Exactly what I expected.. Do you know how many shops would not have done this test and tried to repair it without pulling the head?

It sounds like it needs to come see the magicians:-)
As long as you didn't hear air in the crankcase we are still in business.

edwardneff94 07-19-2012 07:10 PM

Quote:

Originally Posted by Jake Raby (Post 298286)
Exactly what I expected.. Do you know how many shops would not have done this test and tried to repair it without pulling the head?

It sounds like it needs to come see the magicians:-)
As long as you didn't hear air in the crankcase we are still in business.

I did not hear any air in the crankcase, I have bags over all the hoses and open ports in the engine to keep junk out, none of the bags showed any sings of air so i hope that is good news. Thank you for taking the time to talk to me today and for all your help throughout this process. I will call you and try to figure out when i can get it out to you.

Jake Raby 07-19-2012 07:48 PM

That's great. Glad to help. Dean can work with you on getting the engine shipped, he got a shipping quote today.. I'll do my part once the engine gets on deck here.

Heck, I might even post all the pics of this one here..


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