Elton,
TDC -- top dead center. 12 o'clock.
first throw refers to the 1st rod journal of the crankshaft. #1
cylinder in this case.
Cheers,
Bob Haskell
AHCA 3000 Mk I registrar
http://www.ciahc.org/registry_3000mk1.php
On 12/01/2013 12:36 AM, Elton Schulz wrote:
> Fellow Listers,
> I am about to reinstall the flywheel on my BJ7. The
> instructions in the shop manual are confusing to me. It states "Place
> the flywheel --- so that the timing mark "1" is at TDC when the first
> throw of the crankshaft is at TDC."
> Could someone explain to me what that means. I found the "1" mark on the
> flywheel but am puzzled as to where the referred TDC position is. Is it
> referring to the 12 o'clock position? And what is the meaning of the
> "first throw of the crankshaft at TDC?
> Thanks for your help,
> Elton
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