Originally Posted by
Marko R1
check this out - the pics are of my IDM Ielasi engine...had this crap in it which discoloured the residue oil like a brown rusty colour & thankfully the oil was silky smooth - had a bit of surface rust on the end of the crankshaft BUT that easily came off with a simple wipe.
why did this happen & how can i prevent it from happening again? FYI, im using Maxima fuel which i run dry when im done, then i'll run the podified after run fuel (only a cap full) & run that dry.
very odd as my OS engine is like new internally...
It is not always rust. If there is a large amount of castor oil in the fuel then it can be some dryed up castor. That almost looks te same as rust.
But yes, rust is possible. The combination of wrong oil (mostly only synthetic), nitro and some moisture in the air or in the fuel can cause rust very easilly,