PY2KITR1060

I was doing valve adjustment and the helm manual says when the cam gear mark line up, the white crank pulley mark has to line up with the triangle on the lower timing belt cover too. But when my cam gear mark line up my crank pulley mark is about two tooth off....so here's the questions:

1) will that affect the accuracy of the valve adjustment?
2) Should i use the cam gear mark as reference point or the crank pulley mark?
3) Any quick way to fix the misalignment (like re-tensioning the belt) instead of going through the hassle of removing the whole timing belt?

I don't know why my timing belt is off. My R only has 15k and the only thing i did that is remotely related is to advanced the ignition timing....

Thanks guys!

sgT

Rely on the cam gear marks to do the valve adjustments.

Are you sure you are reading the timing marks correctly?
Seems unlikely that they could be so far off on their own. The car would also
run a little strangely i would think.

Batoutahell

I seem to recall that when cylinder #3 or #2 are at TDC, the stock cam gears do not have hash marks to line up (correct me if I'm wrong). When at TDC, the stock cam gear "spokes" do not point straight up, but point a little bit to the front of the car.

PY2KITR1060

Thanks for the help. One more question,

can i just loosen the timing belt tensioner and leaving the belt in place, and adjust the crank pulley so it align and tighten it back, instead of going through the hassle of removing all the accessories belts then the timing belt and do the adjustment?
Just want to get an idea of what i need to do...thanks!

Batoutahell

Before you try to move the crank pulley to make it line up with your cam pulleys, are you sure you're reading it correctly? When piston #1 is at TDC, the "key" on your crank pulley should be pointed at the arrow on your lower cover AND the arrows on your cam pulleys should be pointed "up."

If you're SURE that you're off by a tooth or so on the belt, I don't see any harm in setting the cam gears at their TDC setting, remove the timing belt from the cam gears and turn the crank pulley a little bit to line it up, and then slip the belt back onto the cam gears. You shouldn't have to take the lower cover off to accomplish this.

PY2KITR1060

Okay, I go ahead and re-tension the timing belt and it seems to be getting better.
Now when the white mark on the crank pulley is align with the pointer on the lower cover, the cam gear is about a quarter tooth off....
Is it normal that all these three pulley can't exactly line up? I think there is no way to fix it, since if i rotate either pulley, i have to move it by ONE whole teeth which will make it worse. Any input appreciated!

PY2KITR1060

TTT

Batoutahell

I'm not sure about using the white mark on the crank pulley as a reference point to line things up. Doesn't Helms tell you to align the "key" on the crank pulley? Also, I'm not 100% sure that the pointer on the lower cover is the best reference mark. Again, doesn't Helms tell you to align the "key" of the crank pulley with the "arrow." I'm at work right now and kind of speaking from my poor memory, or else I'd open up my Helms to confirm this.

When you're trying to align the cam gears, which piston is at TDC, and are there hash marks on the cam gears to line up together? I seem to recall that there aren't any hash marks on stock cam gears when cylinders 2 or 3 are at TDC, which makes it difficult to align them with each other.

PY2KITR1060

Yeah. It's kind of confusing. As far as i understand from the manual. When the no.1 piston is at TDC:

1) The white mark(which is also an indented key) on the crank pulley should line up with the mark on lower timing belt cover. I think this white mark is 0 BTDC while the red mark is 16 BTDC, am i right?
2) Both cam gear "up mark" should be pointing up (not straight up though), and the hash mark should line up pointing to each other.

Now the confusion part is behind the crank pulley, there is another mark/key on the timing belt driving pulley that should point to a mark on the oil pump. But i assume that is basically just the same mark as on the crank pulley and timing belt cover....

sgT

The white mark on the crank pulley should point to the marker on the belt cover.
The inner marks on the cam gears should face each other and the outer
marks should align with the deck of the head.

justplainolstev

Im having the same problem did you ever find a solution?