Just a quick question: i’ve pretty much addressed all the common areas for crankcase leakage in order to run some vacuum in the crankcase. Does anyone know offhand if the inner passageway of the braided steel oil dipstic is sealed? Anyone found out that this type of dipstic is a leakpoint within the tube itself. The tube to block is sealed very well with an o ring and some rtv ultra grey. And the dipstick to tube is pretty tight and snug with an oring. I can’t really tell if the tube is actually lined or just braided, which might let some air in through the braids?

TIA.