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Old 07-16-2013, 08:34 AM   #1 (permalink)
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Cam Issue?....Sound from the nose cone

Hi

1997 Wide Glide.

I have a slight grinding sound...soft rattle?....in the nose cone.

This isnt the dreaded cam issue is it?

Ive looked for stickies on the subject...but didnt find anything on the warning signs or symptoms.

How do I check?


Thanks
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Old 07-16-2013, 08:57 AM   #2 (permalink)
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Quote:
Originally Posted by McMurphy View Post
Hi

1997 Wide Glide.

I have a slight grinding sound...soft rattle?....in the nose cone.

This isnt the dreaded cam issue is it?

Ive looked for stickies on the subject...but didnt find anything on the warning signs or symptoms.

How do I check?


Thanks

It's easy enough to pull the cover and check into it.

A service manual and parts book would come in handy right about now.


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Old 07-16-2013, 09:14 AM   #3 (permalink)
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Originally Posted by webco2 View Post
It's easy enough to pull the cover and check into it.

A service manual and parts book would come in handy right about now.


You got that right!....I havent even got a manual yet and Im tearing crap apart. I downloaded part of tha manual online though.

The PO gave me a nice big Harley catalog....for chrome things.

I can pull the cover and do a visual...for loose parts....other than that....its all foreign territory to me.
Most told me the cam issue probably would have been taken care of by now...and Im busy putting on bars and exhaust instead...ha!

Well...if I dont see anything loose...or broken...then what?

Ill be researching as much as possible.....thanks!
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Old 07-16-2013, 09:20 AM   #4 (permalink)
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Originally Posted by McMurphy View Post
You got that right!....I havent even got a manual yet and Im tearing crap apart. I downloaded part of tha manual online though.

The PO gave me a nice big Harley catalog....for chrome things.

I can pull the cover and do a visual...for loose parts....other than that....its all foreign territory to me.
Most told me the cam issue probably would have been taken care of by now...and Im busy putting on bars and exhaust instead...ha!

Well...if I dont see anything loose...or broken...then what?

Ill be researching as much as possible.....thanks!
While you wait for the service manual, go to youtube and watch a few vids of the cams being changed . There are some of rebuilding of Evo motors also.


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Old 07-16-2013, 09:41 AM   #5 (permalink)
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While you wait for the service manual, go to youtube and watch a few vids of the cams being changed . There are some of rebuilding of Evo motors also.


Yep...thats what I was doing...Youtube

I though there would be a write up...with pics...on this site...seems to be a common problem.

How do I know its the cams or bearings?.....or do you just do it if your suspecting or haven't done them yet?

Theres got to be a sign...visual...or test..to determine right?

All the videos are after the fact and already in process.
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Old 07-16-2013, 10:14 AM   #6 (permalink)
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Ok...this sucks.
I thought I could pull the cone and see timing crap.....my cone cover is riveted on.

Ive downloaded the manual...I see it.
It seems you need a puller to remove the whole cone housing...which would mean grinding the rivets off the nose cone.

I thought it might be a simple check....seems to be all or nothing....and now the bike is considered down until I become an expert at cams....shite.

This was my biggest concern when buying an Evo...now ..sure enough...here she sits.....2 weeks later....middle of summer.

So... if I get the cover off...just push and pull things until I find something loose?

Anyone local want to help a guy out?....long shot...but thought I would ask.

Thanks
Murph
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Old 07-16-2013, 11:00 AM   #7 (permalink)
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Quote:
Originally Posted by McMurphy View Post
Ok...this sucks.
I thought I could pull the cone and see timing crap.....my cone cover is riveted on.

Ive downloaded the manual...I see it.
It seems you need a puller to remove the whole cone housing...which would mean grinding the rivets off the nose cone.

I thought it might be a simple check....seems to be all or nothing....and now the bike is considered down until I become an expert at cams....shite.

This was my biggest concern when buying an Evo...now ..sure enough...here she sits.....2 weeks later....middle of summer.

So... if I get the cover off...just push and pull things until I find something loose?

Anyone local want to help a guy out?....long shot...but thought I would ask.

Thanks
Murph
use 1/8 drill and drill rivets out remove 5/16 head screw that holds rotor cup on ,remove the allen screws holding cam cover on should be a lip on cam cover on oil pump side you can pry light against and cover will start moving ,just wigle off from that point ,just push in on end of cam as you are removing cover so it does not fall out on the ground ,there will be small plastic shim on end of breather gear as well that usually sticks to cam cover or falls on ground or lift depends where you are working .hope this helps .thanks pete
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Old 07-16-2013, 11:08 AM   #8 (permalink)
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There shouldn't be a "cam issue" with the EVO. The twin cam has
"2 CAMS", which are driven by chains and tensioners.........the tensioners are a wear item. Your cam is gear driven and you have only 1 cam.
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Old 07-16-2013, 11:57 AM   #9 (permalink)
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There shouldn't be a "cam issue" with the EVO. The twin cam has
"2 CAMS", which are driven by chains and tensioners.........the tensioners are a wear item. Your cam is gear driven and you have only 1 cam.
Thats what I thought...or was hoping....its why I passes on the newer bikes. But Ive also heard about a roller bearing issue with Evos....cheap or poorly made.

I was thinking it was something loose in the nose cone....but was told theres nothing in there to come loose.
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Old 07-16-2013, 12:55 PM   #10 (permalink)
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Well, you may have a bearing/bushing issue, but at least you don't have a tensioner issue.....
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Old 07-16-2013, 01:31 PM   #11 (permalink)
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how many miles on bike ?could have tappet roller going bad .
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Old 07-16-2013, 02:22 PM   #12 (permalink)
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how many miles on bike ?could have tappet roller going bad .

It has 28,000 miles.

I might get the screwdriver out and put my ear to it...and try to pin point the sound.

Its not a knock or ping.....more of a light rattle sound....like a baby rattle?.....or a rattlesnake...not a tinny sound....and I could find anything loose on the outside vibrating.

If I pull the cone assembly without drilling the cover off....does the cam have marks on it to put it back correctly...got a feeling it might come off with the cover.....and I dont have a pop gun to replace the rivets on the cover.

I appreciate the help...gotta find a write up with decent pics.

Thanks

Last edited by McMurphy; 07-16-2013 at 02:26 PM.
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Old 07-16-2013, 02:34 PM   #13 (permalink)
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Quote:
Originally Posted by McMurphy View Post
It has 28,000 miles.

I might get the screwdriver out and put my ear to it...and try to pin point the sound.

Its not a knock or ping.....more of a light rattle sound....like a baby rattle?.....or a rattlesnake...not a tinny sound....and I could find anything loose on the outside vibrating.

If I pull the cone assembly without drilling the cover off....does the cam have marks on it to put it back correctly...got a feeling it might come off with the cover.....and I dont have a pop gun to replace the rivets on the cover.

I appreciate the help...gotta find a write up with decent pics.

Thanks
if you pull cover without removing cover and igntion that is behind it you will pull cam out of bearing and it will not come all the way off as cam will get caught on lifters and then you have a mess on your hands .thanks pete
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Old 07-16-2013, 02:50 PM   #14 (permalink)
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Pulling the nose cone won't answer your questions. The outer cam support is a brass bushing. The bearing you're looking for is pressed in the case.

Do yourself a favor and get a service manual right away.

Then pull the push tube covers to see if someone has installed adjustable push rods. If so you can back them off and remove your lifters. If not you'll have to decide if you want to go that route or pull the rockers to remove the solid pushrods. One factor that may help that decision is if your base gaskets are leaking. If so may as well just pull the tubes, you're gonna have the cylinders off anyway to stop that leak.

After you get the lifters out you'll be able to pull the cam and service the inner bearing. The original bearing is caged. You want to get a good bearing in there with wall to wall needles. Timken/Torrenton/Koyo, whatever, just get that POS caged bearing out of there before it spins and ruins your case or drops a needle.

Then take a good look at the lifters. If your noise is more of a knock than a grind you may find your problem there, but in your OP you describe at as a grinding noise. Sounds like inner cam bearing.

When your done with the cam and lifters rebuild your oil pump and you're probably good for another 100,000 miles.
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Old 07-16-2013, 02:58 PM   #15 (permalink)
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jammer45u is reading this now saying WTF is this?
Just thought. Slight chance you have a scored lifter block. Not super common, but something to look at. Inspect them when you have it apart.
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