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Mc5 timing
#8
(08-17-2017, 01:20 AM)steveohara Wrote: Steve,

In all my years of working on McCulloch engines I have never heard of using the flywheel locking system for setting the timing so I was curious to see if it works as you say and decided to check your method while building a 101 today. First problem.... there are two notches on the flywheels so one is going to be way off. On the 101 I built today using your method would produce a timing setting in the range of 35 to 50 degrees BTDC depending on the size of the pin inserted through the hole and how much rocking of the flywheel was allowed. I tried the method with a standard and a 5 degree flywheel.... not going to work.
I'm curious, where did you come up with that idea? Perhaps it works on some other models? If you have a particular model where you know it works please let me know which model so I can take a motor down off my wall to check and see if it works on mine.
Steve O'Hara
steveo,
that timing notch is something i've seen or heard about too.
not sure memory is fuzzy but i think it might have bennmcculloch literarure.

mel,

READ YOUR PMS I SENT YOU ONE NEED ANSWER. Big Grin

have you confirmed you actually have spark?
i don't recall now.if you haven't pop out the plug and roll it over with the plug grounded and confirm spark.
i've been fooled before on this thinking it's popping.
second thing is you are pull starting it i think?
if thats true all the covering of the carb advise everyone has given doesn't work that good working alone.
to prime the carb you will need to get messy.
loosen all the plate screws and put the gas container above the carb. let a little wash out onto the engine then retighten the screws.

third thing how much gas have you poured down the carb ?
you need about a tablespoon at least if you want the engine to fire it won't hurt much to have extra in the block at this point.
third thing and this one is way out there but who knows. take off the plug and pull away. if you see liquid coming out opf the motor you've managed to flood it the exact opposite of what we think is happening right now but a remote possibility.

on the cheap chinese carbs.post pix of the needles please the description you've given isn't jibbing with what i know about those carbs.
it possible someonme modified the carb for alky that is usually where you find shortened high needles. if so flooding becomes alot more likely.

hope this helps
Cool
at least you carb will be full of gas then.
Dave L.
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Messages In This Thread
Mc5 timing - by Mel Ruffner - 08-15-2017, 04:39 PM
RE: Mc5 timing - by steve miller - 08-15-2017, 05:30 PM
RE: Mc5 timing - by Mel Ruffner - 08-15-2017, 06:19 PM
RE: Mc5 timing - by steve miller - 08-15-2017, 06:32 PM
RE: Mc5 timing - by Mel Ruffner - 08-15-2017, 08:01 PM
RE: Mc5 timing - by steve welte - 08-15-2017, 09:17 PM
RE: Mc5 timing - by steveohara - 08-17-2017, 01:20 AM
RE: Mc5 timing - by David Luciani - 08-17-2017, 07:31 AM
RE: Mc5 timing - by Mel Ruffner - 08-17-2017, 02:04 PM
RE: Mc5 timing - by steve miller - 08-17-2017, 03:56 PM
RE: Mc5 timing - by Mel Ruffner - 08-17-2017, 06:59 PM
RE: Mc5 timing - by steve miller - 08-17-2017, 07:45 PM

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