Ned -
A good thing to check is the harmonic balancer. If yours has the
later-style one piece balancer used on later BJ8s (i.e. for 1/2" belt)
then probably some PO bought a used BT7 generator sometime in the past
because it was cheaper than rebuilding the BJ8 generator, hence the
switchover.
You can tell if the HB is the later style if the balancer itself is ~
3/4" wide on the outside edge). The earlier two piece balancers (i.e.
for BN4/6/7 BT7 BJ7 and early BJ8) are only ~ 3/8" wide on the outside
edge. Also at low engine speeds, the later BJ8 H.B. can wobble a bit
(check for wobbling at idle) where as the earlier HBs don't wobble at
all.
If that's the case, you should think about finding a late generator
(they have more output), pulley, belt and side cover mount.
Best Regards,
Alan
'53 BN1 '64 BJ8
On 3/2/06, Ned Smith <smithn00@kitepilot.net> wrote:
> My BJ8 has number H-BJ8-U/42685 on the firewall tag.
>
>
>
> The number on the ID tag on the engine is 29K-RU-H/17244 but the tag looks
> crumpled. This is the same number on the Heritage certificate.
>
>
>
> But the generator mount is for an earlier car and the pulley on the water
> pump is for a 3/8" belt.
>
>
>
> Are there any other distinguishing characteristics that could not be altered
> that would give the exact age of the engine?
>
>
>
> Thanks,
>
>
>
> Ned Smith
>
> BJ8
>
> near Chattanooga, TN
>
> N34.98 W85.5
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