Dampner notch is at -5 when cam marks are aligned

[dragrush]

Checking base timing 6 bolt in a 2g. When I align the cam gear notches at TDC the harmonic balancer notch reads about -5 on the timing belt cover (about an inch clockwise of TDC mark). Any ideas what is going on here?

 

[BogusSVO]

Try aligning the crank marks then check the cam marks. Sounds like the timing belt is off a tooth, or the blancer could have slipped

 

[snowborder714]

Check out this thread - all the info you should want/need is in there.
http://www.dsmtuners.com/forums/bolt-tech/442151-99-gsx-base-timing-15-btdc-help.html

Most likely the damper has spun and needs replaced.

 

[dragrush]

Thanks for the replies and link.
When I align the dampner with the T on the timing belt cover the exhaust cam notch is a tooth above the intake. How do I diagnose if one of the cams is off a tooth or if its the dampner slipping?

Everything only has about 5k miles on it

 

[BogusSVO]

Pull the balncer off and check the crank marks on the crank gear and on the front case. align those and if the cams line up, the balancer has slipped.

 

[snowborder714]

You do not adjust anything to check the damper alignment with the engine off. If you install it and it's not lined up, there's an issue. If it lines up, you're good to go.

The only marks you should be aligning are cam, crank sprocket, and oil pump sprocket. If you're still unsure, take a picture with these 3 marks aligned (to prove it to us), then install the damper and take another picture showing the mark's relation to the timing cover.

 

[dragrush]

Can you see the timing marks of the crank sprocket and oil pump sprocket
with just the damper removed or do I have to remove the timing belt cover as well?

 

[snowborder714]

You have to remove the timing belt cover as well, or at least remove a few bolts to pry it back far enough.

 

[BogusSVO]

If you did a BSE you do not need to worry about that mark.

If you still have the BS, yes pull the cover and check all marks.

 

[snowborder714]

He'd still need to pull the cover to validate the crank mark is lined up, unless he knows the engine is timed well (should be pretty obvious if it is as it'll run ).

 

[AllanL]

can't he just pull plug 1 and insert a long screw driver through the plug hole to check if he was at TDC, crank-wise?

and then compare with the cam gears marks...

then put on the damper then check with the timing cover timing mark?

instead of pulling the timing covers?

did i make sense there?

 

[snowborder714]

He can, yes, if he knows that base timing was done correctly.


He might abandon this thread for his new one...
http://www.dsmtuners.com/forums/new...se-timing-exhuast-cam-retarded-one-tooth.html