Running a 51 eab motor in my T sedan been straightening everything out so we can start taking trips, noticed that when climbing any hill that smoke starts out of the fill tube jsut thinking to much oil? splashing on skirts when angle changes? runing 4.25 qts i have been running one of the harley style byp*** filters on it , holds 25lbs on highway at 62 running 155 temp on both heads, just wanted to see what others thought
That sounds feasible, especially since I'm guessing that there's no baffling or windage tray in the oil pan. But it might also be a crankcase venting issue. Is it just running a vented cap and a road draft tube? Lower speed up hills may not allow it to draft enough air through the crankcase. And are you actually seeing oil smoke out of the filler, or could it possibly just be blow-by? If it's oil finding its way to the top of the pistons I'd guess that you'd also see oil smoke from the exhaust.
If the crankcase ventilation system or road draft tube is ok it is likely blowby from worn rings. Do a compression test, if the wear is not too bad and there are no other symptoms you may decide to live with it.
has pcv possible blowby, but no smoke out the rear ,dont figure any baffles , road draft tube would have been were the pcv is now? will do compression check
Local bud ran same engine in 31 roadster and same issue following a hard pull uphill on hwy, but no similar issues driving around town........turns out he had a cracked block which only opened up after an uphill pull where engine was working hard......... he figured that out by stopping at hill top & checking oil dipstick which showed oil to be a milky color........due to water contamination in oilpan.......your oil pressure sounds low to me as well........but not losing enough water to show a temp increase........
If you have a PCV system and running uphill open throttle you have less va*** taking care of the oilvapor. So a used engine producing a fair amount of blowby will work fine when carbs not opened up. When going uphill the vapor not taken care of by PCV will have to go somewhere...
this makes sense had thought about it but thats as far as that went ,oil is clean and clear put 120 miles on last night, as far as oil pressure ,the info on that is all over the place some old guys said as long as you have any at idle your good , this is first flathead i have had that runs this cool even at idle sitting it goes to 170 left head about 175 on right head
As I understand it , engines with a PCV , need to be a more or less sealed system. If you have smoke coming out of the fill tube, the cap must be open to atmosphere ??? To work properly the PCV should have an air intake system filtered above the carburettor, so that when vacuum is low the PCV will close and the air flow through the carbs will deal with the crankcase pressure and any small blowby, It will also need the dipstick to be sealed and some form of pressure seals at the crank, I don't think a rope type seal will work effectively.
If the rope seal cant take it neither does the valveguides.... What you want basicly is a negative airpressure inside the engine and have the fumes combusted by the engine....rest is different flavors of the same thing...you have to get air into the engine somehow, and through the fillercap with a mesh is a basic solution. Its a conversion so have to adapt to what we got to start with.Dont think to many want to start drilling the aircleaners and adding hoses to the engine.
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