[Honda-C70] Re: piston hiting on valve's

 

It's an '83, The Head is the same one, but the cylinder I bought could be a 6volt, but what is the difference between 6v and 12v cylinders?

--- In Honda-C70@yahoogroups.com, Mike Gladu <mgladu@...> wrote:
>
> At 5:16 PM +0000 6/6/11, Jill wrote:
> >I got my timing all set up and stuff after swapping cylinders, but
> >now the piston is hitting on the valve's. I can't even get close to
> >being able to turn it all the way over. I swear i have all the
> >gaskets and stuff. Any ideas on what to do next?
>
> You must have either the crank or the cam in the wrong place when
> setting the cam chain on the cam sprocket.
>
> TDC happens twice, once is 'false' (180 degrees off), the other is
> 'true' (zero or 360 degrees).
>
> I'm guessing you used the wrong mark on the flywheel ("T" mark is
> correct) or indexed it to the wrong place on the case.
>
> http://autos.groups.yahoo.com/group/Honda-C70/files/C70%2080-81%20Passport%20Shop%20Manual%20%28JPEG%29/185.jpg
>
> It could also be that the wrong place on the head was used for the
> cam sprocket (something other than 9 o'clock), but that's less likely.
>
> http://autos.groups.yahoo.com/group/Honda-C70/files/C70%2080-81%20Passport%20Shop%20Manual%20%28JPEG%29/188.jpg
>
> Only thing left would be if you used a 6 volt head or cylinder in the
> rebuild. If so, the higher-domed 12 volt piston could be hitting the
> HEAD - not the valves.
>
> Mike G.
> -
>

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