Originally Posted by
RUNNINONMT
so if its only air being pulled in then why do you see oil and fuel on the chassis and fly wheel? ,seems like same amout of air but fuel, oil leaking out throws off fuel air ratio
but im not gonna try to make too much sense of it, if its hard to tune and seems like its leaking then change the bearing most times that cures it.
I didn't say that fuel can not escape out of the engine.
That will happen when the vacuum inside is low at idle.
It's actually true that a leaking engine will leak OUT more fuel also.
That happens when you get an air leak and you tune richer to compensate for the extra heat, that doesn't help of course and you richen it a bit more.
At idle you will now have an excessive amount of "extra fuel" and since idle gives the lowest possible vacuum the fuel will try to escape somewhere and that leaking bearing is the only way out.
There is not much arguments when running with a leak, EVERYTHING will be thrown off the charts. Nothing will add up and you will just scratch your head and become frustrated.