timing TDC?

thanks a lot guys.
so if the machined slot on top and end of the crankshaft were to line with the pin on the oil pump, and if the bolys thread into the fuel pump and camshaft sprockets, than i'm nearly there, hey?
that should mean, i'm 1-4 up??
appreciate your help..........des

des
August 2008

hi des there should be a notch cut out on the crankshaft timing gear that will line up at 12 o'clock with the oil pump

ash
August 2008

Another thought.1-4 at tdc means 2-3 are at bdc so if u can inject comperssed air into 2 or 3 cyl with the valves closed,it will force 2-3 to bdc,some crank turn might be still there but a center point could be found between .therefore 2-3 =max bdc,1-4 must be at tdc

caine
August 2008

Caine, thanks. been very helpful. here goes.....des

des
August 2008

Sounds reasonable,only way to be sure is fit belt.make sure the camshaft lobes on no 1 cyl are pointing up and out,ie10 to 2 in clock position,and with injectors/splugs removed slowly and carefully turn engine over using crankshaft pully bolt while listening for any contact inside.if you'r wrong then u can feel valves touching before dammage is done.and back off.alternate.remove camshaft,this will ensure all valves clear,turn crank with finger over plug/injector hole on cyl 1 untill air is expeled,when air stops it's at tdc.If possible,inserting a slim screwdriver into plughole injector holeand watching rise and fall tdc will be visable.dont let the screwdriver jam.this will not work on indirect diesel's

caine
August 2008