Black stuff on new throttle body

[Josh]

I looked around and found nothing. I got my new BBK TB and MAF Friday, and it has a strange coating around the edge of the butterfly and TB housng where the butterfly meets the housing(Closed). The warning says not to remove the coating but I think they are talking about the boare coating, not this strange black stuff. Anybody know what that is?

 

[huskyfan23]

Sounds like carbon to me. I don't think that'll have any effect on your performance, you can clean it as long as you don't use anything to scrape the butterfly.

 

[Josh]

No its not carbon. It came that way brand new straight out of the box. I just put this thing on Friday. It looks like someone put it there with a little brush. Wierd. It looks like black RTV.

 

[huskyfan23]

Oh that's weird. I never bought my BBK new so I wouldn't know. I assume that's the coating then.

 

[Josh]

It doesn't look right and I'm temped to take it off. Its on the back side of the butterfly only. Maybe some kind of shipping stuff?

 

[mhn3773]

e mail the makers of the TB and ask them wtf it is before u go taking it off.just incase lol

 

[Josh]

Yea but where's your sense of adventure? Besides, maybe it will make my truck idle like its got a big cam.

 

[huskyfan23]

If it doesn't peel off like a sticker then I'll bet that's the coating. I honestly don't remember any black backing on either of my BBK TB's.