Grime in engine

[Domination]

Well i was getting brownish/yellow grimew on my plug the last few days so i took my head off just now and half of the piston had blue grime on it and the other half had the brownish/yellow grime on it it wiped of with a q-tip whats is this from and also this engine is just over a month old along with the maxx and it is a 2.5 I'm gunna strip down the whole mill right now see if i can find where the discoloration is coming from

 

[olds97_lss]

My guess is It's residual fuel and oil. It shouldn't pose a problem. My guess is you run a bit rich which causes build up. And you might want to try a hotter plug if you want to stay running rich.

 

[Domination]

i stripped my mill down and found out that i must have had som wate in there from all the running in the snow buti cleaned itupad oild the vearings ad all

 

[Digital Liquid]

What brand of fuel are you running?

Yeah, if you run in the snow, make sure you clean the entire motor and lube it down to keep the water off of it.

The grime could be from the fuel and water combining, yet if that was the case, you probably should have noticed some performance issues. Did you?

If not, it is probably the fuel you are using.

 

[Domination]

yea i was from water and fuel mixture I'm using bue thunder and i actall noticed more power

 

[olds97_lss]

It was probably due to the water in the fuel. For a while there you were running a nitro powered steam engine.

 

[Skyline Racer]

Agreed

 

[Domination]

well they should make something like that that can constantl take the moisture because itwas silly compared to it b4 i got water in iit