1950 Johnson QD-10 Points

[bjarnold]

What is the Napa part number for points for a 1950 Johnson QD-10 10hp?<br /><br />Thanks

 

[bubbakat]

Re: 1950 Johnson QD-10 Points

18-5156 Replaces: 580148.

 

[DHPMARINE]

Re: 1950 Johnson QD-10 Points

Bill, If you have a Johnson/Evinrude dealer nearby,why not get a tune up kit that also has the condensers?I'd also replace the plugwires and the ends.If the coils even LOOK like they might have cracks,replace them too.(in pairs).<br /><br />This way when you put the flywheel back on,everything under it will be new,and not a problem.And you haven't spent much over $65.00.And you won't have to go there again,for a couple years<br /><br /><br />DHP

 

[Paul Moir]

Re: 1950 Johnson QD-10 Points

I would echo DHPMarine's comments. I just wanted to point out that 18-5156 is a single point set - you'll need two. 18-5006 is the ignition tune up kit, consisting of two point sets and two condensors. The Johnny/Rude dealer ignition tune up kit comes with a new wick while the aftermarket one only comes with a couple vials of grease.<br /><br />Good luck!

 

[bubbakat]

Re: 1950 Johnson QD-10 Points

Thanks paul you pulled my hide out of the fire on that one. Had a brain cramp I guess.<br />Those guys are absolutely right about this get the tune up kit and do it right the first time.

 

[Paul Moir]

Re: 1950 Johnson QD-10 Points

Those brain cramps must be contagious -<br />I have all the necessary equipment for testing condensers, so on a recent project I tried to save a dime by just replacing the points. Four weeks later, I got to look real smart pulling a single set of points (18-5156) out of the shipping box...<br />Hopefully this will save Bill from having to perform that brilliant maneuver.

 

[WillyBWright]

Re: 1950 Johnson QD-10 Points

Brain cramps all around. That motor didn't use that magneto. I think that magneto came out around 1954. It's points don't resemble those mentioned in any way. I doubt they can be had. They aren't rocker points, they're pushrod points and were rebuildable. You'll probably have to clean them up and reuse them. Fine grit wet/dry sandpaper works very nicely.<br /><br />Here's a list of parts and numbers straight from a QD-10 manual...<br />(I have an original and no you can't buy it)<br />580016 Breaker Assy 2.75<br /> 375134 Spring & Point Assy .30<br />300153 Condenser .90<br />580040 Coil<br /><br />Hey, I found a 55 year old printing error. The coil wasn't on the price chart. Not that it matters much. Those are 1950 prices. I expect they've gone up a tad. <br /><br />Later QDs did use the newer magneto. I suppose it could be retrofitted, but I can't guarantee that. Then parts availability is no problem. Do you have the upright pressure tank? Those are quite rare. <br /><br />Here are some more numbers that might be of some use...<br />301862 Head Gasket .35<br />375638 Impeller 1.10<br />301923 Shear Pin .05<br />301821 Double Line Hose 4.95<br />301824 Fuel Connector O-ring .10<br /><br />It might be difficult to supercede these, but I believe the double hose fuel line and fuel connector o-rings are still available.

 

[bjarnold]

Re: 1950 Johnson QD-10 Points

I found out that the motor is a 1949 NOT a 1950. Does that change the part numbers?

 

[WillyBWright]

Re: 1950 Johnson QD-10 Points

The book said QD-10 and QD-11. The book before it just has QD on it and it has the same magneto. Numbers should be good, but I doubt any are still available. But you never know when you'll find one in an old dealer's parts department with a whole lot of dust on it.

 

[Paul Moir]

Re: 1950 Johnson QD-10 Points

The QD-10 had no changes between 1949 and 1950, so the model number didn't change either.<br /><br />Good thing you were looking over our shoulders WillyBWright! Looks like we were all heading down the path toward a major screwup. I must try to be more careful.<br /><br /> QD-10/11 link.<br /><br /> Points source. 580016

 

[mblamphere]

Re: 1950 Johnson QD-10 Points

I have the same motor and need to replace the points, but I'm not sure how the motor cover comes off. It looks like it's 2 pieces. I took the screws out, but no luck. Can anyone help me on this? Thanks!