I'm putting my motor back together and got to the crank pulley install and can't seem to find the little metal key that fits into the groove on the crankshaft. I installed the one that goes in between the timing belt gear pulley and crank but I can't remember if the crank accessory pulley had one or not. The factory manual only shows one key for the timing belt gear pulley. Why would the acc pulley have a slot in it if no key goes there? Confused>

 

Yes you need the key. If you don't have it, you will NEVER be able to get the crankshaft and cam gears lined up right and set the ignition timing correctly, because the marks on the crank pulley won't be in exactly the right place.

This diagram also shows only one key #19, but I know for a fact that it goes in with the acc. belt pulley. I thought the timing belt gear pulley had a built-in key, but I can't remember for sure.

 

theres only 3 keys for the motor. 2 for cam gears 1 on each side and 1 for the crank pulley.


Modified by myfirstdc2 at 7:48 PM 8/28/2007

 

There is one key that goes through the timing gear and the crank pulley. I know where you're getting confused, when the key(#19 on the pic) is installed and the crank pulley is installed there is a slight gap where the key does not go to the end of the pulley opening where you might think a tiny key might go. There is supposed to be that little gap, it is how the engine is, just install the main key through the timing belt gear and the crank pulley and it will be fine. #19 is the only key that is used there.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PatrickGSR94 &raquo;</TD></TR><TR><TD CLASS="quote">Yes you need the key. If you don't have it, you will NEVER be able to get the crankshaft and cam gears lined up right and set the ignition timing correctly, because the marks on the crank pulley won't be in exactly the right place.
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The crank would just spin without spinning the crank pulley at all being as there is nothing connecting the 2 locked together, getting it timed is the least of the worries.

 

I should have mentioned that I'm rebuilding a B20Z2. OK, I took the timing gear pulley off a spare B18B I have and noticed a difference between the two.



The key is built onto the B18B pulley. B20Z2 a separate key is inserted. So no matter what pulley I use the timing gear key issue is covered. What to do with the crank acc pulley is now the question. From what I recall the crank acc pulley didn't have a key when I removed it. Since I don't feel comfy reinstalling without one, I'm going up to the Honda dealership tomorrow to order one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PACT man &raquo;</TD></TR><TR><TD CLASS="quote">The crank would just spin without spinning the crank pulley at all being as there is nothing connecting the 2 locked together, getting it timed is the least of the worries.</TD></TR></TABLE>

Sure the crank pulley would spin, because the pulley bolt is cranked down to 130+ ft-lbs. and is pressing the pulley up against the timing belt guide washers and timing belt sprocket. It would spin, but as I said the timing marks on the pulley would not be in the right place, and timing would almost certainly be a few degrees off.

 

oops i was assuming that u were refering to the b18 motor. some motors will require an additional key. ie: 98 gsr has 2 keys for the pulley and the timing gear