i have been reading a lot of KA24DE block so i have the confidence to work on it my self on the block.To make the long story short i buy this car and it trows a lot smoke, i put the EGR delete block off plate with new hoses, AICV, TPS setting, problem solved. Four months later im installing fullgasket, old pistons with new rings, valve steam seals due to suddenly smoke problems in first gear and the last thing what leave me no choice was rough engine shake.
I am at the step of cross hatch cylinder.
PROBLEM:
I Thinked that mark in the piston (picture below) wasnt deep enough and after ball hone the cylinders (for deglaze)1 to 3 cylinder was ok with 7 or 8 strokes but the 4th is a pain is the only one that have those strange marks, i stroked the 4th cylinder like 16 times but they dont go. I used the 400 grit.
My question is: it could have significant low compression at that cylinder at that state?
I can keep using the ball hone but im AFRAID if it goes to 90mm and i dont want that. The really bad thing is that i dont have those measure tools. im not mechanic and buy this expensive measure tools for using just for a minutes, no thanks
NOTES:
The car smokes white i think, first gear a bit other gears no smoke. In reverse it smokes heavy
The compression test tool was from a friend the hose wasnt in good condition it brokes but last time i used, C.test was 152/151 in all not much difference (158k millage)
New sparks
Suddenly one week after C.test i turned on, the car didnt have power i took spark cables 1 and 2 and notable change on the engine but 3 and 4 they make the click,click sound but no change at all.
*It never crossed my mind to try other spark cables XD.Way too late now. i will be pissed off if was a faulty cables
I took of the head
Head gasket ---- it was ok
Head, valves status ----- i send it to repair( new valve steam seals and all those stuff) wating for news this week
No coolant oil mix
ALL rings was ok too!! but lot of carbon on them, common for that millage i think
2nd hand car
My english is really bad
