When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
tshort,i had the same problem with my old engine....hope you don't have the same issue......stuffed rings allowing the sump to get pressureised forcing oil up the dist shaft....it doesnt happen till the revs get up a bit and the oil is warm.......won't happen at idle....good luck john
jdunne - What do you mean by stuffed rings? I'm just on the paranoid side myself as my gasket gets wet also, but doesn't seem to leak any significant amount. . .
jdunne - What do you mean by stuffed rings? I'm just on the paranoid side myself as my gasket gets wet also, but doesn't seem to leak any significant amount. . .
-dath
Dath,it's a non precise australian description for not working properly......in my case i had several connected problems,too much piston movement in the bores leading to improper ring sealing which led to further ring damage which led to even less sealing and more pressurisation of the sump when hot and at revs......oil was also slowly coming out of the dipstick tube but only at higer revs......if i kept the engine below 2000 revs it wasnn't as bad.......still not good,sure sign of an engine bound to fail sooner or later......john
Ahh Yeah, I work with a couple of Brits and they use the same language, so I'm familiar with it, I just wasn't exactly sure how the sump could get pressurized in this way. It still doesn't quite make sense to me, I think I'll have to think about it some more
Ahh Yeah, I work with a couple of Brits and they use the same language, so I'm familiar with it, I just wasn't exactly sure how the sump could get pressurized in this way. It still doesn't quite make sense to me, I think I'll have to think about it some more
-dath
Dath,in simple terms the compression stroke should be compressing the air in the combustion chamber (with valves closed)but instead of the rings sealing the compressed charge in the combustion chamber that compressed air finds it's way past the rings into the sump,more revs= more compression strokes therefore the more increase in pressure in the sump which isnt supposed to have much more than atmospheric pressure....oil is a fluid(hotter it is, more of a fluid it is)increased pressure moves it to where it can escape...relieve the pressure.....i am aware that is a very simplistic answer and physics and fluid dynamics are much more complicated than that....but it sort of explains why it doesn't happen when idling or at moderate revs...john