engine question?????

[tad7777]

1970 40 h.p. evinrune this engine has two cylinders,,one carb,, my question is , where is the coil for the spark,,does it have two coils or just one, tadpole

 

[Paul Moir]

Re: engine question?????

Tadpole - there are two ignition coils, and they're under the flywheel. To remove the flywheel, use a harmonic balancer puller, or an OEM flywheel puller. Do not use any puller that pulls from the rim of the flywheel. If your into this, you need to get a manual. You can get one here, or an OEM one from kencook.com or ebay (cheaper). You can also often borrow one from the local library.<br /><br />The coils are cheap, you can get them for less than 20$ each. NAPA autoparts carries them, as well as any Johnson/Evinrude dealer.<br />PS - if your thinking - the ignition system for each cylinder is pretty much independant of the others. Often one failes and not the other.<br /><br />Good luck!

 

[tad7777]

Re: engine question?????

thanks paul i will get a harmontic balancer puller , my brother has one,, i do need to get the manual,, i will be glad to get this motor running good again tad

 

[Joe Reeves]

Re: engine question?????

Tad.... Keep in mind that the flywheel nut must be torqued to exactly 105 foot pounds. A torque wrench is a must. Any less torque will result in a sheared flywheel key, throwing the engine out of time, and will cause damage to the flywheel and crankshaft tapers.<br /><br />FYI... The coil closest to the front of the engine (carburetor) is for the top (#1) cylinder.

 

[Paul Moir]

Re: engine question?????

Tadpole - the torque for that flywheel nut is 105ft/lbs (a critical torque by the way - don't guess), so it's going to be on there really really tight. You'll find some good words for you in this thread.<br /><br />Good luck!<br /><br />EDIT: Sorry about the collision Joe!