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Michael Smith · 12-01-2005, 10:40 PM

Well I finally had a little time to do the leak down. Let the engine get to operating temp then shut her down and started with the #1 cyl, piston at TDC and both valves closed, using a moroso leak down tester came up with 18% leak down on that cylinder and you could hear and feel air comming from the oil fill on the valve cover at that point just had to walk away from it. I will go back and do it again with all the cylinders probably next week dont have time over the weekend got work. Just dont get it? last build with cast rings no problem, did my son's 302 build with cast rings no problem. This engine has had two ring jobs in less then 2,000 miles with moly rings and I get freaking blow-by well just rambling on cause I'm pissed. thanks for any input from all.

12-01-2005, 10:40 PM	#6
Michael Smith Registered Member Join Date: Feb 2003 Location: Washington Posts: 33	Re: How long does it take moly rings to seat? Well I finally had a little time to do the leak down. Let the engine get to operating temp then shut her down and started with the #1 cyl, piston at TDC and both valves closed, using a moroso leak down tester came up with 18% leak down on that cylinder and you could hear and feel air comming from the oil fill on the valve cover at that point just had to walk away from it. I will go back and do it again with all the cylinders probably next week dont have time over the weekend got work. Just dont get it? last build with cast rings no problem, did my son's 302 build with cast rings no problem. This engine has had two ring jobs in less then 2,000 miles with moly rings and I get freaking blow-by well just rambling on cause I'm pissed. thanks for any input from all. __________________ New 302 block, Probe forged pistons,Moly rings,I-beam rods,Main girdle,Canton 7Qt pan,B-cam, Edelbrock 6037's ported/decked,Exploder upper/lower ported,#24 inj,190lph fuel pump,70mm tb,73mm maf,MSD dist/coil,6al box,3.73's,Steeda lca's,QA1 k-member,subs,strut tower brace.