jono Posted December 6, 2017 Share Posted December 6, 2017 Got not oil in water Got no water in oil 120,000km since rebore rebuild Never over heated but worked hard Catch can off lhs rocker fills up with buttermilk about 700 ml when full. Bit puzzled Any ideas, corrosion somewhere? Slight Welch plug? But are brass Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted December 6, 2017 Share Posted December 6, 2017 (edited) Why are you running a catch can? The ONLY reason for a catch can or AOS is if you are doing high-G cornering. If you need one for daily driving it means the rings are shot. Too much blow by. GD Edited December 6, 2017 by GeneralDisorder Quote Link to comment Share on other sites More sharing options...
Knucklehead Saloon Posted December 6, 2017 Share Posted December 6, 2017 +1 what GD said. Ring blow by and I'll wager a leaking welch plug in the head as well. Compression check and whip the rocker covers off for a look. Quote Link to comment Share on other sites More sharing options...
jono Posted December 7, 2017 Author Share Posted December 7, 2017 (edited) Um, no one drive , ah ha... you guys don't do roundabouts like we do - clockwise! Its all modified so no petroleum carburetor, no factory air box, has an exposed air filter element with rebreather on top plate if air filter above an Impco propane carby As a precaution to prevent any oil dropping in on air filter element, and because I had the canister kicking about chucked it on Just as well as it has caught the crap, it has served its purpose. Blow by does not produce steam to mix with oil to make buttermilk Normally if a mild steel ferrous metal Welch plug was in it to rust out I would understand and expect water in my oil I am gonna have to do a comp test for starters. It was starting to lose water but first thought it was from its cheap nasty eBay radiator Edited December 7, 2017 by jono Quote Link to comment Share on other sites More sharing options...
Knucklehead Saloon Posted December 8, 2017 Share Posted December 8, 2017 Blow by mixed with a weeping/leaking welch plug will make the buttermilk mate. Knowing you it'll be sorted pretty fast man. Quote Link to comment Share on other sites More sharing options...
jono Posted December 8, 2017 Author Share Posted December 8, 2017 I'll be really puzzled if its a brass Welch plug leaking. Comps cold are all within 5 of 175 on the generic ea71,81,82 slugs. A leak down test be next once I fix the nostart issue. Last time an ea81 fsix blew steam after two months nothing was salvaged except dizzy - it all went to scrap yard Quote Link to comment Share on other sites More sharing options...
jono Posted December 9, 2017 Author Share Posted December 9, 2017 OK. She now fires and runs thanks to an original Hitachi ignition module. The rather new module failed just a few minutes after an engine bay degrease OK. Talking blow by...rockers denuded of tubes and although no smoke from water or oil it does sound and feel like a gentle tail pipe warm air pumping out both sides Now I remember also before I swapped to Brumby#3 this one spat the dip stick out and coated engine bay in a rust preventative. I gave it a good clean up there and then before parking it So, blow by on such a young fresh engine Guess I will find the water contributor some day too. But current daily drivers EA82 power plant is destined to replace this blow by baby. Daily driver gets the ea82T after I swap heads and my newish valve springs in. Like all others, got non car stuff to deal with. Thanks for suggestions. Will have to dredge this thread up when autopsy the ea81 Quote Link to comment Share on other sites More sharing options...
TheGageinator Posted December 9, 2017 Share Posted December 9, 2017 That is normal to me. The mounting location of the can makes a big impact on internal condensation. Quote Link to comment Share on other sites More sharing options...
jono Posted December 9, 2017 Author Share Posted December 9, 2017 Not normal for me. Sorry GD, my fault for not hexplaining how different this one is. Catch can is black, cylindrical strapped to all AC bracket feeds to top of air filter. RHS is alone with one way valve and bare filter Quote Link to comment Share on other sites More sharing options...
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