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Old Mar 17, 2021 | 11:26 AM
  #1  
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Default FSI Stage 1 Build

My Stage 1 build has finally started. I had a nice chat with Jonathan@FSI and he sent a bunch of pictures of my engine in various states of disassembly. I've included what I think are the interesting pics with some commentary. Good news for the most part. Things looked good though the piston skirts are showing very early signs of wear that lead to bore scoring.



Arrival!

Heads come off

Valves showing normal wear

Pistons showing normal wear

No bore scoring ... yet

Crankshaft looks pretty good

Early signs of scoring - piston skirts showing wear
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Old Mar 17, 2021 | 11:54 AM
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Thanks for sharing the photos. How many miles were on your motor?
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Old Mar 17, 2021 | 12:05 PM
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Thanks, and please keep posting pictures!
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Old Mar 17, 2021 | 12:05 PM
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Originally Posted by Jedi Apprentice
Thanks for sharing the photos. How many miles were on your motor?
Only 35K on the motor. This is an elective build but I was still surprised when Jonathan told me about the early bore scoring signs.
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Old Mar 17, 2021 | 12:08 PM
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I bet they all have early signs. Jake had mentioned in the webinar that every elective build they see shows some signs
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Old Mar 17, 2021 | 12:20 PM
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Originally Posted by Optionman1
I bet they all have early signs. Jake had mentioned in the webinar that every elective build they see shows some signs
Now that I have my elective rebuild scheduled, bore scoring is no longer a worry.
If mine scores now, meh...it'll be better than new next year.
Still changing oil 6M/5K miles, allowing oil to get to temperature before driving hard, using quality fuel, etc...because that's just how I treat any of my vehicles.
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Old Mar 17, 2021 | 12:28 PM
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Nice

Congratulations

Love it

My dreams of a bad 996 motor and explaining to my wife honey I have to have it rebuilt likely gone; the 4.0 Jake screamer wont happen. IMSS done, meeting the pre inspection report before doing so showed my perfect little 3.6 was well perfect. Now, each time I start it I dont worry about the sound of IMSB failure or flickering check engine light crushing my toy money fund while picking 4.0L parts for Jake to add, while he is in there, I just listen to my Fister D sweet melody.

Now I can only hope for bore scoring to force the 4.0L dream to come true

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Old Mar 17, 2021 | 12:56 PM
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My piston skirts looked like that when I had the case apart, the engine had +200K mile and no bore scoring what so ever. Have detailed pictures of it.
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Old Mar 17, 2021 | 01:59 PM
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Originally Posted by Imo000
My piston skirts looked like that when I had the case apart, the engine had +200K mile and no bore scoring what so ever. Have detailed pictures of it.
That's interesting. Can you post the pics?
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Old Mar 17, 2021 | 02:15 PM
  #10  
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Originally Posted by blacksquid
That's interesting. Can you post the pics?
Since I'm not a paying member anymore, I can't post any new pictures but I can send them to you in an email (PM me) and you can post them.
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Old Mar 17, 2021 | 03:05 PM
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Originally Posted by blacksquid
Only 35K on the motor. This is an elective build but I was still surprised when Jonathan told me about the early bore scoring signs.
Yep, 68k miles on mine when it was done.


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Old Mar 17, 2021 | 04:42 PM
  #12  
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Mine at 153k miles, looks pretty similar on the piston skirts. Bores were clean, nothing even close to catching a fingernail on either the bores or piston skirts. Elective rebuild in progress.


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Old Mar 17, 2021 | 10:54 PM
  #13  
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I looked at the components for @blacksquid today, 5/6 cylinders had stage I failure, and 1 if them had stage II failure well underway.
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Old Mar 17, 2021 | 11:14 PM
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Mine didn't look so good at a little over 54k...but it's all GOOD now.
#6


Last edited by wildbilly32; Mar 17, 2021 at 11:17 PM.
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Old Mar 17, 2021 | 11:33 PM
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Originally Posted by wildbilly32
Mine didn't look so good at a little over 54k...but it's all GOOD now.
#6
Yours was a full blown, Stage 4 "as bad as it gets" failure.
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