What's the easiest way to check carbon build up?

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Feb 26, 2018 | 07:49 PM
  #1  
While installing my dp and fmic. I was chatting with my friend about checking the carbon build up. (He is as VW mechanic). He checks by viewing through the plug holes ( with a scope) and turning the crank by hand. The mini crank seems hard to access plus the intake is on the firewall side.
how do you guys check carbon build up?
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Feb 26, 2018 | 08:40 PM
  #2  
If the scope has a light.. its doable as mentioned..and much easier to peek at vs, taking the mani off. Ive not done more than that myself so far.

*If your plugs foul up in less than 10k and have a plastering of caked ***** on them, then its a fair guess without even looking down the hole, to assume you need a decoke. Oil consumption is also an indicator. Im changing plugs and oil like its free right now trying to avoid doing the decoke service..though I dont think its going to be wise to keep doing so for long. 78k on my N14 here.
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