Hi guys I’ve been reading this forum since I got my gtr 2 months ago and I got pretty good information also my car is imported from Australia to Canada so I decided to open a topic and share my story.
When I got the car it was smoking white and a little blue previous owner Told me it might need a new piston rings and bearings. It was driving pretty good and no more white smoke after 10min drive long story short after couple of days driving, one day I got too excited and reved it up then I heard a knocking sound and maybe 2 minutes later engine seized while it was on 1000rpm and not in gear...
so I transferred the car to where I live in Toronto and decided to build the engine by my self and it’s going to be my first time ...
right now engine is out and I found why engine seized it was the main bearings... 2 of them and the first one at the end of crank was the cause of the engine to stop.
interestingly all the con rods pistons block surface and head surface don’t show any sign of damage.
right now I need a good plan to build my engine. I know when the main bearing is gone that means crank and block needs machining. There are visible scratches on the crank and pretty bad sign of wear on main girdle I didn’t remove the crank to see how the block looks like cause at this point I think I know the answer...
the problem is here in Toronto we don’t have good machinist and after reading bad experiences some of you guys had with machineshop I might get new bottom end include block. Piston size is 87mm so I have to get new 86mm if I get new block.
also i have problem finding new girdle as I think it’s not included with the new block
let me know what do you think guys
these are some pictures that I got from the situation
the head condition is not bad but there’s small area that chipped off close to valves and somebody fixed it before .you can see the pictures at the end
camshafts have some small scratches where they seat I included the pictures is it normal?
