HELP Super Torque and VIN split Early 89 MC

[shawn]

I am in the midst of a Timing Belt session and have hit a trouble spot.  I
have an early 89 MC prod number 5031.  I believe I have the super torque
set-up rounded shoulder on the timing belt, water pump with visible gear
teeth on end (no flange).  And smaller tension roller.  The problem:  I
received my parts and am in the process of buttoning it up and I notice the
tension roller is slightly larger than the one which came off.  It is part
no. 069 109 243 B.  Can I use it? or do I need to wait and exchange at
Carlsen.  I am hoping that the water pump adjustment will give enough to
make up for the approx 6mm diff in diameter.

Sort of funny note:  I was using the appropriate cam sprocket holding tool
in my left hand and had a cheater bar on the socket in my right pulling
toward myself.  When the cam nut broke loose I hit myself as hard as can be
on the bridge of the nose right between the eyes.  I learned something from
that.  We'll see if I have 0, 1, or 2 black eyes in the morning.

Thanks so much for the Qlist help.