Hey guys, i recently did my oil change and noticed there was a small amount of milky oil on top of the pan (maybe a tennis ball size) and the rest of the oil was clean, the oil cap and dipstick were also clean. I noticed i had to fill up the radiator but i dont know if it was always missing coolant or if it happened recently. There was thick white smoke when i was giving it throttle. I did a compression test and got 175 psi in each cylinder. I had to unbolt the upper intake manifold to get to cylinder number 6. I tought maybe the headgasket as gone bad only recently, which would explain the little amount of milky oil and the high compression. So i decided to do a leak down test with a custom tool (https://www.youtube.com/watch?v=7UcOn8OEt0Y).
I did test on number 1, align last left notch of crank pulley with water pump arrow on top of the pulley and did the test (at cold). The air was rushing through the intake manifold port so i guess i have bad timing or bad valves but it's weird because the compression test was fine. I also noticed prestone was leaking from the rear passenger side hose of the upper intake manifold (i had to cut them to remove the plenum, i think its IACV and AAC). Now i'm waiting to do the other cylinders. I would like to know if i got the good way to find TDC and if it is normal to have good compression and a bad headgsket. I also think it might be the intake manifold to head gasket??
what you guys think
Thanks
I did test on number 1, align last left notch of crank pulley with water pump arrow on top of the pulley and did the test (at cold). The air was rushing through the intake manifold port so i guess i have bad timing or bad valves but it's weird because the compression test was fine. I also noticed prestone was leaking from the rear passenger side hose of the upper intake manifold (i had to cut them to remove the plenum, i think its IACV and AAC). Now i'm waiting to do the other cylinders. I would like to know if i got the good way to find TDC and if it is normal to have good compression and a bad headgsket. I also think it might be the intake manifold to head gasket??
what you guys think
Thanks