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lsr1976

Joined:

Dec 12

Posts: 3

lsr1976 says:

leading the way!(not)

hiya everyone.iI wonder has anyone had much experience on setting the timing gear (aligning) on a 2003 honda lead crankshaft?i cant find any markings on the crank and it is not keyed or splined.any help would be very much appreciated...thanks

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  • Posted 2 years ago (04 December 2012 18:18)

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kcmc

Joined:

Jan 08

Posts: 7178

kcmc says:

Honda SCV 100cc Lead 2003?

Hi Isr1976 and welcome to the site:smile

OK if this is the bike your talking about?(see above) then,the crankshaft gear that drives the cam chain is sweated or pressed on in the factory,and would  need to be heated and pressed on the same way if it needs replacing(which is very rare).The way Honda look at it is,it doesn't really matter as it can only ever be half a tooth out,which they look at on a small work type engine as minimal as you could get this with the play in the cam chain. If you what to get it as close as possible then when fitting new gear have one of the teeth face the middle of the crank pin,this will be as accurate as you need be.You can find the top dead on the generator flywheel or by putting a screw driver in the plug hole turn the crank shaft(slowly) until the screw driver pushers all the way then starts to fall again,at the point were its not rising and or falling this is your top dead so you can set the cam timing at this point,there will be a mark on the cam gear and a mark on the case to line up all at top dead hope you understand my explanation.Good Luck

KCMC:tongue:    

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lsr1976

Joined:

Dec 12

Posts: 3

lsr1976 says:

21 degrees(i wish)

thanks so much for putting me straight with this one,although 21 degrees seems like a fare amount!everything is now cleaned and main bearings(yes main)replaced.will set up for dry(ish) run today>thanks again

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lsr1976

Joined:

Dec 12

Posts: 3

lsr1976 says:

21 degrees(i wish)

thanks so much for putting me straight with this one,although 21 degrees seems like a fare amount!everything is now cleaned and main bearings(yes main)replaced.will set up for dry(ish) run today>thanks again

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kcmc

Joined:

Jan 08

Posts: 7178

kcmc says:

Whats with

the 21degees ? :wacko::huh:

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