9.5 Evinrude Flywheel/coil clearance

cbotzum

Cadet
Joined
Jan 1, 2006
Messages
6
I had just replaced my spark plug leads on my 72 Evinrude 9.5 I'm uncertain of the clearance spec and exactly how to adjust the clearance between the coil pick-ups and the flywheel.
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: 9.5 Evinrude Flywheel/coil clearance

There is a special tool,naturally.But if you look at the bosses the coils mount on,you'll notice the mag plate is machined where the screws hold the coils to the plate.Align the ears of the coils with this machined area,and you'll be golden.That's all the special tool does.<br /><br />DHP
 

Paul Moir

Admiral
Joined
Nov 5, 2002
Messages
6,847
Re: 9.5 Evinrude Flywheel/coil clearance

Welcome to Iboats, cbotzum!<br /><br />You set the coils so the laminations are flush with the machined bosses they sit on. This leaves about a 0.010" gap between the coil and the flywheel magnet. If the armature plate (the casting on which the coils sit) is excessively wobbly, there's a fairly simple fix for that.<br /><br />You should really get a service manual if you can. It'll tell you helpful things like the flywheel nut torque is 40-45ft/lbs. ;) You can get a factory service manual printed from marineengine.com, maxrules.com, etc. They turn up on ebay all the time too. Use the following search terms:<br />(9.5, 9.5hp) (evinrude, johnson) manual 1972<br />(Johnson & evinrude are identical for any given year excepet paint & decals)<br />If you're unwilling to buy one, you can often borrow an aftermarket manual from the local library.<br /><br />Good luck!<br /><br />EDIT: Dang fast typers. I guess I shouldn't be so wordy (or is that preachy? :D )
 

cbotzum

Cadet
Joined
Jan 1, 2006
Messages
6
Re: 9.5 Evinrude Flywheel/coil clearance

Thanks for the quick replies. I'll lock the coils in and give it a whirl.
 

MCM

Lieutenant Junior Grade
Joined
Jun 1, 2005
Messages
1,201
Re: 9.5 Evinrude Flywheel/coil clearance

Well Paul, what you do type is always worth reading slow or not :p
 

Xcusme

Commander
Joined
Apr 21, 2003
Messages
2,888
Re: 9.5 Evinrude Flywheel/coil clearance

This might help you too.....<br />Surface A and surface B should be flush...<br /><br />
Crackedcoil.jpg
 

Paul Moir

Admiral
Joined
Nov 5, 2002
Messages
6,847
Re: 9.5 Evinrude Flywheel/coil clearance

Thanks Xcuseme, I wanted to post your pic but since search isn't working... (bookmarked. ;) )
 
Top