pulling flywheel 1961 40hp Johnson

[tx1961whaler]

Re: pulling flywheel 1961 40hp Johnson

Probably not. You need metal core spark plug wires. Most auto plug wires are not.

 

[kfa4303]

Re: pulling flywheel 1961 40hp Johnson

Ward, you got the wrong type of wire. You cannot use graphite core, automotive spark plug wires on these old outboards! You MUST get COPPER core wires. 7mm diameter is fine, and the brand shouldn't matter. If O'Reilly's doesn't sell them go somewhere else. You can get it at NAPA and some other auto parts stores for about $3 a foot, per my previous post. They usually have it behind the counter on a spool and they just pull of however many feet you want and cut it to length. 6-7 ft. should be fine. Just cut it in half and you'll have 2 equal length wires. You'll have to install a new boot on the spark plug end, but that's easy. You just strip about 1/2 inch of the insulation on of the s'plug wire to expose the copper core. You then fold it over and crimp on the new boot (some folks solder them on there for good measure), then you just slip over the 90 piece of rubber and voila! new spark plug wires. The other end of the wire is left alone and TWISTED (not poked) on to the coil post. Hope that clears things up. Keep us posted.

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

Thats what I thought. I asked the guy behind the counter if these are copper core and he says "sure are". Kinda thought he didnt know what he was talking about but what can you do? Anyway, off to a NAPA store tomorrow.

 

[lindy46]

Re: pulling flywheel 1961 40hp Johnson

Johnnyrude dealer should have it - Hypalon 7mm copper core. I buy it in bulk for 60 cents a foot.

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

Called all over the place and finally found 7mm copper core ignition wire. Going to get them when I have more business in that part of town. Couple of shops wanted to sell me stainless steel core, said thats all they use nowadays.

In the meantime, I opened up my 1970 33hp Evinrude for the same tuneup (flywheel came off with no problem now that I'm a pro at it) and that one looks like it has the stainless steel core ignition wires. What say you, copper or stainless for the 1970 motor? BTW those coils both test out at 4 ohms on the secondary. I'm thinking that is probably spec since they both have the same reading. Purple and green coils with M on them.

 

[lindy46]

Re: pulling flywheel 1961 40hp Johnson

I don't have any experience with the stainless steel core wires. Coil primary winding should be 0.9 ohms (green and black wires). Secondary (black wire and coil spike) should be 4000-7000 ohms.

 

[kfa4303]

Re: pulling flywheel 1961 40hp Johnson

I agree. I've never heard of SS core wires? I would just stick with the 7mm Copper Core. Keep us posted.

 

[Tim Frank]

Re: pulling flywheel 1961 40hp Johnson

In a coastal marine environment SS might make some sense if it reduces corrosion-related electrical issues.
I'd wait to hear from someone who has actually used it, though.
If it really is the a better idea, why is it not OE....or is it now?

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

Ok, put in new points and condensers and ignition wires (SS) and got it all put back together with only two "extra" parts. One - a wavey washer that I'm pretty sure I left off one of the points (ugh) and the other is a spring. I have looked at the parts diagram but it doesnt really show what it attaches to. Check out the picture. Does this spring attach to the screw just above the spring held in by my pliers? Sure hope so.

View attachment 108698

 

[kfa4303]

Re: pulling flywheel 1961 40hp Johnson

Hi ward. I can't see the pic. Try reposting it.

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

here's another try at the picture. Anyone else having problems? Works ok when I click on the attachment.

View attachment 108777

if you click on the picture it will give you a better look at the situation.

 

[doberacker]

Re: pulling flywheel 1961 40hp Johnson

Ward, where did you find them (copper wires) by the foot? I live just south of you in Portland Area. I know I can special order it, but if you found a local (northwest local) place to get it please PM me? If you have time? Thx. D.

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

another try at posting the picture.

View attachment 109047

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

Forget the picture, the spring doesn't hook on that bolt anyway. I finally found the little hole the spring hooks into. Getting close to trying to start this motor.

 

[kfa4303]

Re: pulling flywheel 1961 40hp Johnson

Hi doberacker. Try NAPA, if they don't have it in house they can usually have it delivered from their warehouse within 24 hrs for free. plus, you can order any Sierra replacement parts in the same way. pretty sweet deal.

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

Yahoo it started up first try! Had to shut er down because it wasn't moving water. So I'll have to drop the lower unit and see whats going on there. I already have a new impeller. But hey, it runs.

 

[kfa4303]

Re: pulling flywheel 1961 40hp Johnson

AWESOME!!!! amazing what a couple new wires can do. the rest is just basic maintenance and tweaking. congrats!

 

[crowekamp12]

Re: pulling flywheel 1961 40hp Johnson

Turn the puller snuge and give the bolt on puller a tap and see if it gets easer o turn then just repeat cbr

 

[ward cleaver]

Re: pulling flywheel 1961 40hp Johnson

So to continue on with this saga, I did drop the lower unit which led to three re-installs due to not moving water at least twice -- maybe I was a little paranoid when I only let it run for only a few seconds before shutting it down and 2) screwed up the re-assembly of the shift arm in the gear case resulting in no reverse gear -- so much for getting curious about the innards of the gear case. Finally got it all put back together again and it runs great, moves water but gets pretty hot with the t-stat in there so I took it out and I'll get a new one.

While putting away my tools and cleaning up the work area I found the dreaded "extra" part -- the o-ring that goes on the top of the drive shaft. So I guess I'll drop it again. I'm actually getting pretty good at it now especially since I began using the kids swing set to hoist it up off the boat and hang it horizontal so I can get the LU reinstalled. Its just too heavy for me to do alone with it hanging off the boat. Putting some grease on the copper tubes where they mate with the grommets also helped a ton.

Won't be long now.

 

[tx1961whaler]

Re: pulling flywheel 1961 40hp Johnson

One good thing about not installing the o-ring on the drive shaft is that after a few years you will not have to worry about taking the lower unit off again. Because it won't come off!