The head is NOT on. The Crankshaft and large jackshaft gear line up fine
and the way they are supposed to. I'm trying to figure out how the small
jackshaft gear should be oriented. I can always adust the cam gear to where
it's supposed to go once everything else is lined up. Thanks.
Woody
----- Original Message -----
From: "Vicki Burrows" <gregnvicki@earthlink.net>
To: "Dwight Woodruff" <dwoodru1@tampabay.rr.com>;
<datsun-roadsters@autox.team.net>
Sent: Tuesday, May 21, 2002 9:50 PM
Subject: Re: Help with putting timing components back together...
> OK, I assume your head is bolted down, your cam is set with the #1 lobes
at 10 and
> 2, and that the #1 piston is at TDC. If not, make sure that you are
careful
> about how you rotate the engine with the cam in it, as you will likely hit
valves
> (if need be, you can move the crank by the shortest route to the left or
right so
> that the keyway is at either 3 or 9, then you can move the cam, as the
pistons
> will not be in the way). If everything is set up (#1 at TDC, cam at 2 and
10),
> the crank keyway should be at 12. THE CAM BOLT HOLES SHOULD BE HORIZONTAL
AND THE
> DOWEL SHOULD BE UP. Put the gears on. If necessary, move the jackshaft
around **
> with the chains off until you can set it up so that YOU CAN DRAW AN
IMAGINARY LINE
> THROUGH THE CENTER OF THE JACKSHAFT, THE CENTER OF THE CRANKSHAFT AND THE
CENTER
> OF THE TIMING DOTS ON THE CRANK AND BIG JACKSHAFT GEAR. Pull the gears
off and
> put on the chains. Everything should still line up. To be sure, spin the
engine
> over by hand and make sure that you don't hit any valves, as 1 tooth off
can be
> disasterous. Make sure it all still lines up as described. You should be
good to
> go! Thanks to Dan at Rallye Roadster for most of this info!!!
>
> ** (I assume you do not have the distributor gear in it yet, but if you do
and it
> is now no longer pointing at #1 for the distributor, then you will have to
pull it
> out and fiddle around until it is close.. no big deal).
>
> Greg Burrows
>
>
>
> Dwight Woodruff wrote:
>
> > All,
> > Can someone please tell me how to put the timing components back on
my U20
> > correctly? I am following the Rising Sun Reassembly document, but am a
little
> > confused. It indicates that the dimple on the rear or small jackshaft
gear
> > should be at the 1:00 position when the engine is right side up while
the keys
> > on the crankshaft are at the 12:00 position (which means the large
jackshaft
> > gear's dimple should be at 5:00 or 11:00 [depending on rotation])
However,
> > because the gears go on keyed, the jackshaft gears rotate at the same
rate,
> > and the dimple on the small (rear) is at 11:30 or 5:30 making the above
> > scenario impossible. Everything up until this step has worked fine with
the
> > other gears and chains. Help please. thanks.
> >
> > Woody
> >
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