TDC

[Dante]

I've done a lot of searching and sifting on this, and I'm still a bit confused.

I need to make sure my #1 piston is @ TDC. This is what I've heard is the way to do it: Make sure that the notch on the inner part of the cam sprocket is vertical, with the dot on the edge of the sprocket @ 3 o'clock, and the silver link in the timing chain lining up with the dot.

I rotated the crank quite a bit, and the silver link comes within one link of lining up, but doesn't line up exactly above the dot. Have I not rotated the crank enough, or is it even necessary to have the chain line up to make sure it is at TDC? If I haven't rotated the crank enough, how many rotations of the cam sprocket are in a full cycle?

[TrunkMonkey]

keep turning. i couldn't tell you how long i had to turn the crank before i got it to line up.

-demetrius

[Dante]

Thanks, that's reassuring. Being alone, it takes forever to turn, check, turn some more, check, etc.

Edit: Quote »There is a dot on the outer edge of the cam sprocket that should line up with a silver chain link once every other revolution. [/quote] That's what had me confused, it was JNM240 wrote it. I guess there's just a lot of cam sprocket revolutions per crank revolution.

[Dante]

OK, tonight I rotated and rotated, and the silver link repeatedly comes within one link of the dot. What gives? The chain looks fairly new, would it be that someone replaced it incorrectly?

If this is the case, how would I get the #1 piston to TDC?

Or should I just rip everything apart and reset the timing later?

Edit: I got TDC figured out, but I'm still curious about the silver link. It's set one link off.

[TrunkMonkey]

iirc, there are supposed to be two silver (marked) links in the chain. one for the crank and one for the camshaft.

it is possible that somone installed it wrong. situations like this makes me nervous.

-demetrius

[I am Technoman]

The way I do it is I put a long screw driver in cyliner # 1 and I turn the crank until the driver comes out. To make sure im not 180 I look at the dist rotor to make sure its pointing at # 1.

Does that make sense?

[TrunkMonkey]

Does that make sense?

it makes perfect sense.

-demetrius

[Dante]

I eventually did it by using the timing marks on the crank pulley, and then making sure with a screwdriver. I'm quite certain it's where it should be now, now all I need is a crank pulley extractor.

[I am Technoman]

now all I need is a crank pulley extractor.

Two very large screw drivers will work or pry bar.

[crypt2k]

Tech is the king of alternate tools! dont you love this guy.

[I am Technoman]

No that guy is a loser! Ha just kiddin Thanks:)