SleeprCivic

I know this topic was just talked about recently, but I can't find it. My Chilton manual is smokin somethin bad and I can't understand what it says about the rear (intake side) balance shaft pulley. There are two marks on it. A little notch in the edge and a small drilled dot on the front (maybe just for balancing). What do I align it to??

Thank you, thank you, thank you!!

COMplex.

i don't know off hand the measurements exactly, but i want to say 70mm.

now what i did, was took a small screwdriver and measured 70mm and made a mark on it.

for the rear shaft, there is a bolt that you can remove and stick the screwdriver in. turn the pulley and when the screwdriver goes all the way in to the mark, the pulley is aligned.

i'm pretty sure its the same for the front as well. i don't have my helms with me.

but thats the procedure i followed EXACTLY by the book. no problems so far.

maybe someone can add to this.

and remember i'm not 100% sure about it being 70mm. i'm about 90% sure though lol. hope that helps a little.

k_spek

https://honda-tech.com/zero...age=2

You have to scroll down a bit. It's straight out of my helm's manual. I hope this helps.

SleeprCivic

ok, I got all that about the maintenance hole and inserting a screw driver or bolt and I did that, but is that just some internal alignment? I ask that because I can turn the rear pulley and the mark on it will end up in different spots, even though the screwdriver goes in and catches the pulley. So, does it matter where the marking is on the rear balance shaft pulley? Or do I just insert the screwdriver and turn till it locks?

Jonathan_ED3

You're going to need to insert something that will fully take up the slack inside the hole, otherwise, like you said you're going to have quite the amount of travel on the pulley gear.

SleeprCivic

What I mean is that I can insert the screwdriver and lock the rear pulley ( so it doesn't move) but I can pull out the screwdriver and start to turn the shaft (now the screwdriver is pushed back inside) and when I find the next point when the screwdriver will 'fall' into the hole in the shaft, the pulley is not at the same orientation as it was the last time I locked the shaft.

So, the first time, the mark on the pulley points straight up for example (one of the lock points), then the next time the shaft locks after turning it, the pulley marker, is about 120 degrees further (clockwise). The rear balance shaft pulley marker isn't always in the same orientation when the shaft is locked.

I'm just asking if I need to worry about it, or if no matter what, if the screwdriver locks the shaft, then that means its at the correct point.

The screwdriver is of the correct diameter and length by the way.

This alignment thing is pissin me off, maybe a picture would be better. Let me know if it's still confusing, cuz it even seems that way to me! Thanks for the help so far though!

SleeprCivic

bump!

Jonathan_ED3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleeprCivic &raquo;</TD></TR><TR><TD CLASS="quote">So, the first time, the mark on the pulley points straight up for example (one of the lock points), then the next time the shaft locks after turning it, the pulley marker, is about 120 degrees further (clockwise). The rear balance shaft pulley marker isn't always in the same orientation when the shaft is locked. </TD></TR></TABLE>

Okay, now since you've said this, I know what you mean.

My problem, and why I redid my shafts in the first place, was because when I reinstalled the oil pump face, I didn't keep the balance shaft rod gear insync with the balance shaft belt gear....and I've honestly got no clue to what degree it's off.

When I made my post, it was under the premise that the hole in the rear balance shaft ends....so there's only ONE way you can put a screwdriver through. So when I redid them, I just turned it until I found the hole (thinking at the time there was only one way to put in a screwdriver) and then worked from there assuming I had it right.

So now this means I've only got a 50/50 shot that the way I've got it now is correct.

If the hole in the rear balance shaft does go all the way through, which I now remember it does from having it apart and you confirming it, then I'm completely screwed as there's no way to tell for sure if I have it right.

For you though, you need to line up the dot on the oil pump housing cover (balance shaft gear drive) straight up, I'm even pretty sure there's an arrow you align it with, and at the same time keep it aligned through the hole in the shaft.

So you actually align it with two methods ...the rear hole, and then an arrow/dot on the gear itself.

I don't have a manual, but this is what I'm hypothesising from having it apart a couple of times.

Hope that helps you......

Does anybody know how I can align mine? I'm still getting a bit of vibration upon accelerating, maybe it's the shafts.

I'll take it apart I guess, rotate the rear shaft one half turn and then try it again (ARRRG, it's such a hassle). If it's smoother, I assume I've got it right, yes?

SleeprCivic

ok, I get ya... I thought it was really strange why it locked with the pulley in a bunch of different places. There is an 'arrow' (looks like it could be an arrow) at the 12 o'clock position on the oil pump cover, so I would think that you're right in saying thats the position.

I'm going to call the Honda dealer too and see what they say, just to make double sure. Thanks man!

SleeprCivic

Ok, right from the Honda tech ---&gt;

The dot on the front of the rear balance shaft pulley should line up with a line on the block which is about 120 degrees past vertical for dot on the pulley. That puts the notch on the edge of the rear balance shaft pulley at vertical and there is a mark on the block (oil pump cover) for that also. This is one of the positions that locks the shaft of course.

There! Straight forward, I'll post a pic of how everything lines up as soon as I get them off my camera.

Jonathan_ED3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleeprCivic &raquo;</TD></TR><TR><TD CLASS="quote">Ok, right from the Honda tech ---&gt;

The dot on the front of the rear balance shaft pulley should line up with a line on the block which is about 120 degrees past vertical for dot on the pulley. That puts the notch on the edge of the rear balance shaft pulley at vertical and there is a mark on the block (oil pump cover) for that also. This is one of the positions that locks the shaft of course.

There! Straight forward, I'll post a pic of how everything lines up as soon as I get them off my camera.</TD></TR></TABLE>

Ahhh, I knew that's how it was supposed to be.

Now I wonder what I can do to line mine up since I lost the correlation between the balance shaft and the outer pully gear when taking it all apart the first time

I really don't know how far it's off...when I have the shaft locked now, the dot is either facing the front of the engine, or facing the rear. haha.

I guess trial and error will be my best friend

Are you having to align these in the car, or is your engine still out? Doing all this stuff in an EG is a PITA!

SleeprCivic

Its out of the car for now, I'll bet it's tight in there!!!

Jonathan_ED3

Look at a quote I just found in a thread about balance shaft belt in the Prelude forum:

You have to be carefull when puting the balance shaft belt on. One of the shafts (I believe it's the rear one... someone please correct me if I'm wrong) doesn't ballance at the mark but once every 3rd revolution. You you can check this if you take the belt off and match the mark on the balance shaft gear at it's top position. When you let go of it, it should not want to "float" away from the top mark. If it does, either forward or backward, turn it 360 degrees and try it again. You'll know what I mean when you try it.
Anyway, that could be causing your vibrations... HTH

Dan P.

This really helps me out....I guess this means the position I want is for the hole to be locked, and the gear to not 'float' out of position.

I'm pretty sure the way I have it now, the 'top' of the gear wanted to float itself
down away from the top of the motor.

B18C2

you got a pic of it so we can see it

Jonathan_ED3

a pic of what exactly?

If you're down there working on it you should know exactly what I'm talking about