simonphelps08
Newbie
Sorry about the phrasing on that.
Those are two associared statements that left out some assumtive details on my part
The very first thing is to physically establish that the piston is at tdc in order to see if the balancer is correct.
That is the part about putting a feeler of some type into the #1 plug hole and finding tdc without referencing the timing mark.
No matter which stroke the piston is on.
TDC of the piston should also be timing mark at zero.
The dampener is keyed onto the crank and the crank is mechanically connected to the rods and thus to the pistons.
The mark will either line up at zero with the piston at tdc.
Which is good
Or the mark will be off with the piston at TDC.
Which means the timing mark itself is not aligned.
Not the crank or the piston, but the outer ring of the balancer.
Do that check first to see if you can eliminate the balancer as the source of the problem.
If the balancer timing mark is at zero with the piston at tdc.
Then you can move on to the next step.
Let us know what you find and just start with that step and then we can go on
good luck, it will all make sense when you are done
I checked the piston for TDC and figured out what you meant after going back and forth a couple times. When the piston is TDC the timing mark is quite a ways off.
interestingly enough the line is off from the TDC and in the same position it was in last time I had to readjust the truck when it was acting up.
So, when the piston in all the way down in top dead center the timing mark is off and it happens to be off in the same direction and about the same amount it is when I need to readjust. (I not know how to read the degrees but I would say 20-30 degrees.
I hope this makes sense.
This means I need a new harmonic balancer or is this a crank sensor? Whats next?