White coating on the inside of exhaust turbo housing

[5ltretr]

The inside of the headers are coated white also?

 

[turbo buicks]

what?

 

[b4black]

running lean?

 

[FastRegalWE2]

hmmmm. I just put on my ATR D/P the other day and noticed the same thing in my stock elbow when I took it off. I thought it was from the race gas cause I have C16 in it?????

 

[5ltretr]

dang time to take the plugs off.

the O2 looks fine normal color.

the white is something i have never seen.

 

[pitch black]

alky can cause this white coating

 

[FastRegalWE2]

I dunno about him but Im not running alky

 

[5ltretr]

hmmm definitely been using alky a lot lately, that might be it.


ws6formula50 , did you check your plugs?

 

[pitch black]

A lean condition will cause a light white coating and alky will cause a thick white coating.

 

[FastRegalWE2]

havent checked my plugs yet. If it was lean, it would have been when I changed the turbo 2-3 weeks ago and didnt bump up the FP for about a week. So that may be what its from....I will go pull a plug here after dinner and repost

 

[FastRegalWE2]

pulled all the plugs, broke 1 of course, ok, needed to step to the next range anyway. They were partially coated too, so I am led to belive that it is/was from being lean when I changed my turbo and didnt up the FP

 

[5ltretr]

ws6 ,


what turbo did you get ? what was your FP before and after ?


thanks

 

[jastrckl]

Originally posted by ws6formula50
pulled all the plugs, broke 1 of course, ok, needed to step to the next range anyway. They were partially coated too, so I am led to belive that it is/was from being lean when I changed my turbo and didnt up the FP

broke one plug... let me guess... #6? lol

 

[FastRegalWE2]

broke one plug... let me guess... #6? lol

Lol, actuall it was #4....dont ask me...

5ltretr ws6 ,

what turbo did you get ? what was your FP before and after ?

I got a TE44, my FP was 42 before and 45 after line off, I think, or damn close to it. But it was at least a week before I bumped it up...cause Im a tard

 

[5ltretr]

My Plug #1 was lightly coated white also.

Must be from the alky

 

[FastRegalWE2]

I was just informed by RedsHotAir that it was the C16 leaving the residue in my car. I replaced the plugs anyway with the CR42TS plugs.