Home › Forum › Ask A Member › Timing fixture for OMC
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wbeaton.
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January 20, 2017 at 6:11 pm #6151
Does anyone out there know what the angle is between the crank centerline through the keyway centerline and the mark on a timing fixture is? (I have just enough capability to be dangerous enough to make one.) Or alternatively, anyone made a knockoff timing fixture? Or have or know of a used one for sale? ( I will also post in the member’s classified. Also interested in a coil setting fixture. Both needed for tune-ups on my CD-11’s that are spark intensity challenged after their rebuilds.
Thanks in advance for your never ending assistance with my never ending project. Good thing I can still walk on the water up here in Packerland.
Kyle Anderson
Trempeleau, WI
skanders@triwest.net
920-764-0501January 20, 2017 at 6:13 pm #51409Frank Robb:
http://www.franksoutboardtools.com/
http://www.richardsoutboardtools.com
classicomctools@gmail.comJanuary 20, 2017 at 6:36 pm #51410I second the direction to Frank Robb. I have one of his timing fixtures and it is IMO every bit as good or even superior to the OMC tool. The coil setting fixture seems like it may be a handy device, although I have never had any issues with visually setting coils even with the heels on the armature plate and getting a strong spark. That is, of course, assuming the points are very clean and of good quality and the coils and condensers are good.
-BenOldJohnnyRude on YouTube
January 20, 2017 at 7:18 pm #51412Anonymous
Franks tool are first class !!
As far as the coil setting fixture, I highly recommend it.
You can hold the coil tight with one hand and tighten the
screws with the other hand.
And your done ! 😀Steve A W
January 20, 2017 at 8:47 pm #51416I have the originals and Franks.
Franks are MUCH better quality. I put the OEM tools in a box for nostalgia, and only use Franks.
January 20, 2017 at 9:37 pm #51420skander01, You know the old saying, angle of the dangle times…………….! The pointer is called a timing fixture but it is really a tool to adjust the ignition to fire as close as possible to 180 degrees apart. Any kind of a tool would work as long as it was straight and fasten to the crankshaft If you set one set of points you could put the pointer between the marks. Then roll the motor so the other piston is at top dead center. Make those points close with the pointer between the marks and your done. Usually the point gap ends up just a couple thousands different. I wish I had a buck for every snowmobile that I did this timing thing on. Maybe then I could afford a few more outboards!
dale
January 21, 2017 at 1:57 am #51437I haven’t built one yet but I bet you could make a fixture from an old flywheel , i think i have at least a few flywheels from dead powerheads laying around.
Open up the top of the flywheel to gain access to the points by cuttting, grinding, or a hole saw.
you will need to find TDC with a piston stop by the usual means.
Insert a spark plug into the top of the cylinder and Carefully rotate the flywheel till it stops, mark the flywheel at a reference point of your choosing then rotate the flywheel the opposite direction Carfully tll it stops then mark the flywheel at the previous reference point.
TDC is between those two marks.
Repeat for addional cylinders.
Thanks for posting I want to order franks coil positioning tool.
Jim2Fast4Me
January 21, 2017 at 2:16 am #51438Trust me order the fixture. Why would you want to spend the time cutting up a flywheel and having that around your shop lol. Franks tools are lightweight, compact, and sturdy. You will only need to buy it once.
January 21, 2017 at 3:15 am #51444quote Chris_P:Trust me order the fixture. Why would you want to spend the time cutting up a flywheel and having that around your shop lol. Franks tools are lightweight, compact, and sturdy. You will only need to buy it once.I agree totally , his tool is built more precisely than the OMC tool.You need precision when doing the timing if it is to run well.
"Some people want to know how a watch works, others just want to know what time it is"
Robbie RobertsonJanuary 21, 2017 at 3:28 am #51446quote Chris_P:Trust me order the fixture. Why would you want to spend the time cutting up a flywheel and having that around your shop lol. Franks tools are lightweight, compact, and sturdy. You will only need to buy it once.+2. Why re-invent the wheel?
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