Originally posted by PSI Racer
I have 2 Sirio engines, a 12 TRPPRO and a 21 PRPro.
They are both leaking from the glow plug.
Does anyone know the cause of this?
The plugs are tightened down really good, so I don't know what the problem could be.
Are they Turbo plug engines or Standard plug engines???
If they are standard plugs, check if the surface of the head button where the plug washer seats is square(flat), if not carefully place a 600 grit sand paper on a glass or flat surface and with light circles sand the surface until it is flat. Also change the copper washer with a new one, because they tend to deform after tightening.
AFM