Question about TDC

[deviouschild]

Ok so i was in california working for a month and when i got home decided to race - bad idea considering racing with jett lag caused me to forget to shift lol kinda got caught up on that melodic bass. anyways to the point i snapped my timing belt and ended out ripping out the cams on the 3SFE as well as pulling the head and putting in a brand new head gasket - now i have to put the cams back in i have been told to put them in lining up the service marks and using the 0 setting on the timing gear - so that my exhaust valves will open first. but as far as tdc on the piston in cylinder 1 goes how do i set that? and any tips on the cam shaft alignment?

thx

[88 LE]

Originally posted by deviouschild
now i have to put the cams back in i have been told to put them in lining up the service marks and using the 0 setting on the timing gear - so that my exhaust valves will open first.

Theres 2 sets of marks on the camshafts. The marks are on the gears.

Line up the cams by using the first set of marks.

but as far as tdc on the piston in cylinder 1 goes how do i set that?

Turn the crank pulley clockwise till the notch on the pulley lines up with "0" on the lower timing belt cover.

[victor]

quick question. i also need to put the cams back.

88LE, you say to use the first set of marks. but which of the two sets of marks is the first?

[deviouschild]

dono which set. the marks on the gears on the camshaft is what i was talking about. then after the factory marks on the gears are aligned i was going to set the top timing gear at its set factory mark.

[88 LE]

Originally posted by victor
quick question. i also need to put the cams back.

88LE, you say to use the first set of marks. but which of the two sets of marks is the first?

The ones labeled "timing marks" in the pic below:




Removal and installation of camshafts on a 3S-FE:

http://www.autozone.com/servlet/UiBr...3d8013e6a5.jsp

[88 LE]

Originally posted by deviouschild
dono which set. the marks on the gears on the camshaft is what i was talking about.

Same here.

then after the factory marks on the gears are aligned i was going to set the top timing gear at its set factory mark.

Top timing gear?

You mean the camgear (timing belt goes around it)?


By the way heres instructions for installing the timing belt:

http://www.yotarepair.com/3S-FEtimingbelt.html

Disregard the part about making match marks.

Just turn the camgear till its at TDC (hole in camgear lined up with the mark on the bearing cap), #1 piston at TDC (notch on crank pulley lined up "0" on lower timing belt cover), install belt, tighten tensioner, rotate crank from TDC to TDC, and check alignment.

[victor]

i have the toyota manual, and it shows the exact same picture. but those two marks look exactly the same. actually i think i just figured it out. the lower of the two are the timing marks. i hope. thanks.

[88 LE]

Originally posted by victor
actually i think i just figured it out. the lower of the two are the timing marks.

Yup.