tdc on HB

the gold version · 07-02-09, 11:07 PM

on the HB wich markings is for top dead center on piston #1? there is three markings close to each other and two other markings way seperated ................HELP

Quaraxkad · 07-02-09, 11:24 PM

Quote:

Originally Posted by the gold version

on the HB wich markings is for top dead center on piston #1? there is three markings close to each other and two other markings way seperated ................HELP

The one that is by itself is TDC. The other three are for measuring timing with a timing light, ignore those.

the gold version · 07-02-09, 11:39 PM

but there is two marks by them selfs, how do i know wich one???????

Quaraxkad · 07-03-09, 12:10 AM

Quote:

Originally Posted by the gold version

but there is two marks by them selfs, how do i know wich one???????

There should only be a total of 4, are you sure there is actually 5th?

the gold version · 07-03-09, 01:00 AM

yeah i double checked , and there is the 3 in a row then two others , but i lined one up to the middle tooth of the cover and i looked in the #1 cylinder and i can see the pistion, then i lined it up with the other mark and i cant see nothing but water , so i should be good right?

Quaraxkad · 07-03-09, 02:01 AM

Quote:

Originally Posted by the gold version

yeah i double checked , and there is the 3 in a row then two others , but i lined one up to the middle tooth of the cover and i looked in the #1 cylinder and i can see the pistion, then i lined it up with the other mark and i cant see nothing but water , so i should be good right?

That depends... Why are you setting TDC? If you are not removing the timing belt it's probably not that important that you get exact TDC.

There are other methods to try also. You can use the camshaft pulley timing marks, assuming your timing is set correctly you should be able to tell which mark on the crank pulley is correct. You don't have to remove the timing belt covers, you can pull out the rubber plugs and look straight through them. You can also remove the crankshaft pully, remove the lower timing belt cover, and look at the arrow on the timing belt drive pulley. Another more unreliable method is installing a compression gauge into the #1 spark plug position, turn the crank pulley until the first sign of compression drop.

Can you get a picture of those timing marks? I'm thinking one is just a scratch or something.

the gold version · 07-04-09, 01:37 PM

im doing the head gaskets,so i need that #1 piston tdc,that other mark is not a scratch it looks just like the other one . thanks for your help

Quaraxkad · 07-04-09, 03:36 PM

Quote:

Originally Posted by the gold version

im doing the head gaskets,so i need that #1 piston tdc,that other mark is not a scratch it looks just like the other one . thanks for your help

In that case, take off the upper timing belt covers, take off the the crank pulley, take off the lower timing belt covers, put the crank pulley back on, and use the timing mark on the timing belt pulley It's an arrow with a matching arrow on the block.

the gold version · 07-04-09, 06:32 PM

oh man more work..........guess i gotta do it . the legend is lucky i love it

javaco888 · 07-04-09, 09:46 PM

you can put a long stick inside spark plug hole #1... when u see it at it's highest point, line it up to a mark... only turn the crank clockwise tho... OR if you're car is properly timed already, like QuaraxKad said, take one of the upper timing belt covers off one of the cam sprockets, and see where it lines up... that should be TDC... check both cams for good measure...

Quaraxkad · 07-05-09, 01:53 AM

Quote:

Originally Posted by the gold version

oh man more work..........

The method I suggested isn't any more work than you'll have to do to remove the timing belt anyway. You have a lot more ahead of you, just be patient.

the gold version · 07-05-09, 01:43 PM

i tried putting a long extention in the #1 cylinder and i turned it and it didint seem to move at all. maybe i was doing it counter clockwise instead of clock wise ill try again but i think i have it tdc right now...

Quaraxkad · 07-05-09, 03:19 PM

Quote:

Originally Posted by the gold version

i tried putting a long extention in the #1 cylinder and i turned it and it didint seem to move at all. maybe i was doing it counter clockwise instead of clock wise ill try again but i think i have it tdc right now...

You probably had it resting on the spark plug threads and not on the top of the piston. You can remove the crank pulley and all the timing belt covers, then just put the crank pulley bolt back in without the pulley and you can use the markers on the timing belt pulley and cam pulleys.

the gold version · 07-07-09, 07:58 PM

does the cam shaft (sprocket) have to be lined up before i can take the heads off? i have the driver side lined up but i cant get the passenger side to line up is there a trick to it?????????????????

Quaraxkad · 07-07-09, 11:40 PM

Quote:

Originally Posted by the gold version

does the cam shaft (sprocket) have to be lined up before i can take the heads off? i have the driver side lined up but i cant get the passenger side to line up is there a trick to it?????????????????

Did you already set TDC and remove the timing belt? Each camshaft should already be in the correct position when you set TDC on the crankshaft. Did you accidentaly spin a cam pulley after removing the belt? There's no reason you need to re-set each cam before removing the head once the timing belt is off.