Carbon Build-up

[chriskinzel]

I'm in the process of pulling my secondaries. With the IH removed I can see the intake valves. The primary ones are clean, but the secondaries are full of carbon build-up. Any suggestions as how to clean these up. Not ready to do a valve job yet.
Thanks Chris

http://i1344.photobucket.com/albums/p659/ckinzelchriskinzel/2014-01-12155224_zpsa96430ab.jpg

http://i1344.photobucket.com/albums/p659/ckinzelchriskinzel/2014-01-12155213_zps12977332.jpg

[A26B]

Chris,

I've seen much worse than what you are showing. I wouldn't worry about it.

When you get your prom redone to use all injectors, use brand fuel but not the same one all the time. They generally have different additives to combat/reduce carbon fouling. If you drive it regularly, I would expect a lot of what you are seeing will disappear.

[Dynomite]

Chris,

I've seen much worse than what you are showing. I wouldn't worry about it.

When you get your prom redone to use all injectors, use brand fuel but not the same one all the time. They generally have different additives to combat/reduce carbon fouling. If you drive it regularly, I would expect a lot of what you are seeing will disappear.

Good stuff ...............:thumbsup:
And yes....that looks normal....:cheers:

If you ever are thinking of doing a valve job.....do a compression check first ......valve job last.

Take your inspection camera, remove spark plugs and take a peak at the top of the pistons if you want to see some carbon (I know you have such a camera) ;)

And...and...and....if you ever do a valve job pay particular attention to the lifters range of operation such that you do NOT end up with open valves, valves hitting pistons, or valves not fully opening. LT5 New Rebuild Issues (Lifters and Camshafts) (http://forums.corvetteforum.com/c4-zr-1-discussion/2942622-tech-info-lt5-new-rebuild-zero-compression.html)

[GOLDCYLON]

Normal and as stated I have seen worse

[chriskinzel]

Thanks for the info! That will put my mind at rest for a moment.:handshak:

Chris