June 25, 2018, 12:41:00 PM
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Author Topic: 78-1/2 FXE Super Glide  (Read 13367 times)

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June 03, 2018, 11:25:37 AM
Reply #255
Online

NoSuperSlabs

Supporting Member
You have given us what our site is all about!  You pictures from tear down to rebuild to firing up were greatly appreciated by us.  Nice ride!  Thanks again!
Very true.

This is a great thread and it is exactly what forum's are about.
Two Lane Highway

June 11, 2018, 05:22:15 AM
Reply #256
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biggum


Hey all - the end of bliss - out on a ride yesterday with the wife.  Things started great, 70deg, sunny, perfect.  Headed to Maine Military to check out some goodies then on to the Airline Brewery for some chili, a stout and some horse shoes.  After that we started over to Cherryfield to check out the new Pine Tree Mud Runs course.

Started hearing a sort of rotary like chafing from the right side of the engine.  Hmm, need to keep an ear on that.  Kept motoring along, lost ignition in one cylinder again.  Also noticed oil leaking from push rod cover tubes across the right side of engine.  Hmm, something getting wet in the ignition?  Pulled off and checked it out, seemed okay.  Checked for spark, nothing at front cylinder.  Swapped cables around etc and determined that one coil was dead.

Middle of nowhere, no cell service, what to do.  Let’s try and limp to Ellsworth on one cylinder.

Limping along, starting to hear some pretty loud knocking from engine, not sounding good.  Pull over, oil everywhere from push rod covers.  Throw helmet 200’ into the woulda, cuss, stomp.  Out of nowhere an old cowboy action buddy, Stumpy, shows up and says he’s got a friend, Rick, with a trailer.  Calls him, Rick says I’ll be there in 10 minutes.  Wow, thanks guys.  About 5 minutes later a blue SUV shows up, Stumpy....that’s not Rick, hmmmm.  Hey, you need a lift, I’ve got a bike trailer in right now.  Wow!  Thanks but we’ve got one coming, were are you headed?  Portland via Bangor.  Well then I’ll take you up.  Thanks Rick, we found another ride.  What are the chances, mind you we are pretty far off the beaten path.  Thanks so much to Andy and his wife for the lift back!  Turns out they are avid riders with about 20 bikes between them on there way back from camp.  Unbelievable.

Anyway, checked coils today, spark from one, not from the other.  Swap ignition wiring, now spark from the other and not the one.  Okay, so coils goods, something in ignition or a wire.  Check ignition again.  Uh oh.  Guess I know what that rotary chafing noise was......
https://uploads.tapatalk-cdn.com/20180611/9f7e43fc75eaef12f9c5bbdf9a9355d6.jpg
78-1/2 FXE Super Glide


https://uploads.tapatalk-cdn.com/20180611/9994f749e91f4047ef4af9b58e609724.jpg
78-1/2 FXE Super Glide


When I popped the cover there was a tiny brass screw laying in there and a couple of slivers of plastic fell out on the floor.  Small tube, spring, and some more plastics chunks.  Time for a new ignition.

My guess is the oil leaking from pushrods got in there a raised hell.

Why so much oil coming from front cylinder push rods?  I used the rubber seals-I swapped in the cork last night.

Also found two push rods with enough slop to tap them up and down - probably where a lot of the noise was coming from - not sure why they were loose......

Still have a rapping from the front cylinder when running, still have no fire there so maybe that will go away once I do.

I did look down the plug hole, no  valves in the laying around and compression feels good.  I don’t think running it without spark would cause wrist pink/crank issues, do you?

Good grief.

Well, the day wasn’t all bad.  Got to play horse shoes with my wife in chaps

https://uploads.tapatalk-cdn.com/20180611/e408675afc6b6a0fda952e1d49cb29fb.jpg
78-1/2 FXE Super Glide



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June 11, 2018, 06:35:57 AM
Reply #257
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j f go

Community Advocate
It's always a person in a small town in Maine that will stop to help. Glad to see you figured out your problem. Guess this is why they call it a labor of love. 8)
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June 11, 2018, 07:05:31 AM
Reply #258
Offline

biggum


@maniacmac

Coil question - my coils show 3 ohm on the side but read 6.3 on the primary - what gives?

Thanks as always

https://uploads.tapatalk-cdn.com/20180611/e7dd963ffd0ac288510f9f8d419bd559.jpg
78-1/2 FXE Super Glide



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June 11, 2018, 08:12:48 AM
Reply #259
Online

HDBitchin

Administrator
Looking at my old 1995  Evolution Softail manual I would say that your secondary is way low.

Besides verifying the voltage is present at the coil you can perform a coil resistance check. The primary resistance will be a low value of around 2.5 to 3.1 ohms according to my Softail manual. The secondary winding resistance (spark plug wire connections on coil housing) will be 10,000 to 12,500 ohms.
HDBitchin aka Tank 
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Member of the Motorcycle Riders Foundation

June 11, 2018, 08:27:49 AM
Reply #260
Offline

biggum


@hdbitchin thanks


I am probing the + and - in that photo, I believe that is how to measure primary - confused as to why I have 6.3 on a 3 ohm coil.  Secondary is 14.5 which is within spec for these.  They are Dynatek DC3-1 I believe.  I would have expected to see closer to 3 on a 3 ohm coil but I'm out of my knowledge zone on these.  My guess is it is bad but surprising that they both read 6.3 instead if 3.

Any experience with compu-fire vs Dynatek?

June 11, 2018, 08:55:15 AM
Reply #261
Online

HDBitchin

Administrator
I miss read your post. When you said you had 3 on the side I didn’t understand your reference was to what was stamped on the coil and had I looked at the picture I would have understood. I was thinking you were saying that the 3 on the side was the secondary reading. Looking at the picture now I get it.

Being that the primary is double and you discovered some damage to the ignition that might have increased the primary resistance as a result.
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June 11, 2018, 12:47:58 PM
Reply #262
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bc45

Global Moderator
Secondary ohms seem low at 14.5 are you sure it wasn't 14.5k (14500) ohms ?


June 11, 2018, 05:59:58 PM
Reply #263
Offline

biggum


Secondary ohms seem low at 14.5 are you sure it wasn't 14.5k (14500) ohms ?

Yes @bc45 14.5k

I tried to zero out my meter and it stayed at 3-3.5 resistance so I think that’s the issue and coils are fine - would be odd to have them both out by the same amount.

Ordered a new dyna s ignition and high grade svante from Elimination Scooters today.  Big thanks to Gary and his honey for all there help and advice.  If you are in Brewer, check him out.

Hope to have Thumper fired back up by the weekend and confirm no cylinder/rocker issues.

Cheers


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June 12, 2018, 03:12:37 PM
Reply #264
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biggum


Well My new ignition and mechanical advance came in today and I just tried installed them.  Advance goes on fine but the ignition won’t go on over the rotor.  It appears that the cam end is no longer centered in the case......not good.

Please tell me, oh yeah no biggie, or it’s supposed to be like that otherwise I have a new piece for my museum.

You can see it is not centered here

https://uploads.tapatalk-cdn.com/20180612/6741438f6161872668f73231282d8245.jpg
78-1/2 FXE Super Glide





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June 12, 2018, 03:26:04 PM
Reply #265
Online

HDBitchin

Administrator
Hey @maniacmac and @bc45 can you guys weigh in on the above post please?
HDBitchin aka Tank 
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Member of the Motorcycle Riders Foundation

June 12, 2018, 03:44:39 PM
Reply #266
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biggum


My guess is bearing 35 and or bushing 32 are shot.  Which is probably what caused the advance and ignition failure as well.  Better that something in the case I guess.  Hopefully didn’t grind up the cam and pinion gear as well.  Might also explain why I had two loose push rods.

https://uploads.tapatalk-cdn.com/20180612/b880fe2f860e3a9c22f27b832f177394.jpg
78-1/2 FXE Super Glide


Guess I know what my next project is.


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June 12, 2018, 04:57:55 PM
Reply #267
Offline

biggum


Cam shaft play and metal gouges from shim.  I can move the crank side of the cam up and down about 1/16 - 1/8 inch.  And it looks like that lob is shot.  Awesome.

https://uploads.tapatalk-cdn.com/20180612/ed92e03972c303b3a9cfea55cd1f894d.jpg
78-1/2 FXE Super Glide


https://uploads.tapatalk-cdn.com/20180612/794f28b53f52eb8d6457b854552e2285.jpg
78-1/2 FXE Super Glide



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June 12, 2018, 05:19:10 PM
Reply #268
Offline

biggum


Slop

https://1drv.ms/v/s!AsYvv95piDcZjdhR5RFT8GlzQ1_l8A


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June 12, 2018, 08:41:11 PM
Reply #269
Offline

bc45

Global Moderator
Looks like you found the problem. Hopefully it is just the bushings and the case is ok and not buggered up.


 



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