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Author Topic: carbon buildup  (Read 911 times)

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spoonman

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carbon buildup
« on: September 12, 2007, 10:21:14 AM »
every 2 weeks i clean the tbi. it's covered in black crap. the intake box above the tbi  is also.  it seems to be the hose going from the valve cover (w/90* bend) into the intake? if so why would they do this?
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Offline neale_rs

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Re: carbon buildup
« Reply #1 on: September 12, 2007, 10:51:49 AM »
Air should be flowing the opposite way.  Most likely your crankcase ventilation (CCV) is plugged.  This is the vacuum hose that attaches to the side of the valve cover and goes to the manifold.
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'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

spoonman

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Re: carbon buildup
« Reply #2 on: September 12, 2007, 10:56:10 AM »
is doing that as easy as it looks?
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Offline neale_rs

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Re: carbon buildup
« Reply #3 on: September 12, 2007, 01:00:42 PM »
Yes, just make sure you get vacuum from the manifold but don't change the size of the hole in the part that screws into the valve cover, just clean it out.
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'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

spoonman

  • Guest
Re: carbon buildup
« Reply #4 on: September 12, 2007, 01:44:26 PM »
it wasn't too bad to do. thanks for the help. it was full of crap. :beers:
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Offline neale_rs

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Re: carbon buildup
« Reply #5 on: September 12, 2007, 02:16:50 PM »
Great!  Glad to help.
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'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch
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