black gunk in intake port - Honda Prelude Forum

alblude · 07-27-2006, 09:06 PM

Sup Y'all,

So I took off my IM and found the black gunk in one of the intake ports of the head... Just wondering what would cause this..

Thanks.

Dmetal420 · 07-28-2006, 07:35 AM

I cant tell if that oil or carbon deposits, either way I think its normal.

marcucci · 07-31-2006, 10:42 AM

Normal. It's a combination of oil coming in through the PCV and carbon due to the EGR and reversion from the chamber on the exhaust stroke.

A PCV catch can will help some, you can search the board for more info.

alblude · 07-31-2006, 02:13 PM

Thank you!!! will look into the PCV catch can...

pIOUs · 08-02-2006, 04:18 PM

Quote:

Originally Posted by alblude

Thank you!!! will look into the PCV catch can...

They absolutely rock for keeping your intake cleaner among other benefits