Has Anyone Had This Happen To a Blue Module?

[Deleted]

I bought a parts SEZ on Ebay the other day.It looks to be in real good condition.I pulled the muffler to inspect the piston & cylinder - looked excellent,no scoring.Next I checked for spark,it didn't havde spark.S I began my investigation.I took off the recoil cover & lubed the recoil,that works fine now,but could probably use a new recoil spring down the road.On to the no spark issue.I noticed it had the infamous blue module - the thing was filthy,so I took out the two screws that hold it in place.Now I've got this thing in my hand & I'm cleaning away,not noticing that the plug wire isn't attached.Lol  I took my meter out to see what kind of a reading I'd get.Now if I put the leads onto the switch spade (red,hot) & my other lead (black,cold) onto the module ground wire & core leg,I get a reading of 7.9 - 8.1.That tells me that the module is good.Now if I put the red lead into the spark plug wire (that I'd reattached to the module),& the black lead to the ground wire & the kodule leg wth the ground wire,then I get a reading of 12 - 13.How is that even possible?
Obviously I need to epoxy the plug wire back into the module,but the plug wire must come through the saw's housing first,then go into the module.Oh,& the plug wire grommet must go on first too.

  20180314_151148 by edju1958, on Flickr

[sweepleader]

I would be shocked it they were the same. You are testing the two different sides of the system, one is something like 100-200 or so volts when running, the other is something above 5000-10000 volts. (Not really shocked, that comes when things are working correctly.)

[fossil]

Mar 14, 2018 14:49:32 GMT -5 edju1958 said:

I bought a parts SEZ on Ebay the other day.It looks to be in real good condition.I pulled the muffler to inspect the piston & cylinder - looked excellent,no scoring.Next I checked for spark,it didn't havde spark.S I began my investigation.I took off the recoil cover & lubed the recoil,that works fine now,but could probably use a new recoil spring down the road.On to the no spark issue.I noticed it had the infamous blue module - the thing was filthy,so I took out the two screws that hold it in place.Now I've got this thing in my hand & I'm cleaning away,not noticing that the plug wire isn't attached.Lol  I took my meter out to see what kind of a reading I'd get.Now if I put the leads onto the switch spade (red,hot) & my other lead (black,cold) onto the module ground wire & core leg,I get a reading of 7.9 - 8.1.That tells me that the module is good.Now if I put the red lead into the spark plug wire (that I'd reattached to the module),& the black lead to the ground wire & the kodule leg wth the ground wire,then I get a reading of 12 - 13.How is that even possible?
Obviously I need to epoxy the plug wire back into the module,but the plug wire must come through the saw's housing first,then go into the module.Oh,& the plug wire grommet must go on first too.

  20180314_151148 by edju1958, on Flickr

No reason you can't feed the wire through and screw it into the module. You may not be able to see them but the little barb in the module well has threads on it like a wood screw. If there's enough wire, cut a 1/4" off so the end going into the module is fresh. If you want to seal it from moisture, put a little silicone on the wire insulation going into the module.

[Deleted]

Should I epoxy it back in so it doesn't come out again,or just silicone seal it?I think I have some blue permatex.

[fossil]

Make sure you screw it in and not push it in. Don't epoxy it in just in case you need to remove it. I've never found it necessary to put silicone on them but it won't hurt as long as you don't get into the electrical contact area.

[Deleted]

What's got me baffled is how it came apart in the saew to begin with.I screwed it back in earlier & gavde it a little tug to make sure it won't come apart again.Damn it!I forgot to put the grommet on & put the wire through the housing.Oh well,I guess I can unscrew it again.

[fossil]

SpLit the grommet and then crazy glue it back together. (No one will notice if you can live with it)

[Deleted]

I'd do that if I could get away with it.It was one of Homelite's better ideas to NOT have the plug wire fit through the casing.The wire has to be fed into the saw from the outside.On the other SEZ I thought it was rather odd that I'd have to split the housing to put a new module on,but now I understand why the wire is screwed into the module now - so people can change the module without tearing the saw in half.I for one would've thought to make the hole where the wire goes out to attach to the plug just a little bit bigger,but that would've been the simple thing to do.I swear that the engineers that worked for Homelite must've worked at Ford previously,because as we all know back in the day Ford"had a better idea".Their vehicles in the '70's were crap.

[onlyhomelites]

Mar 14, 2018 21:09:42 GMT -5 edju1958 said:

because as we all know back in the day Ford"had a better idea".Their vehicles in the '70's were crap.

Still are if you ask me!!!

[Deleted]

I didn't want to offend too many people Leon.I'm trying to keep it friendly here,& it's not that easy.Lol