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General Discussion
Started by TechJD at 05-02-2007 1:03 PM. Topic has 18 replies.
  
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 05-02-2007, 1:03 PM
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TechJD
 
Joined on 02-10-2007
Posts 256
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ok I was tryin to see my camchain
not an easy trick to do
heres what I could see
and heres a pic of the tensioner slot
the loop in the middle of the mirror is the slot but you cant see the bolt in it
it's just passed the lip of the mirror by a hair (my hand moved :( )
from what I can see and according to this site
mine looks to be a little over half worn
http://www.elsham.pwp.blueyonder.co.uk/cx500/camchain_parts/
anyone else who has done this trick agree or disagree ?
or any comments ?
sorry these are the best images I could get
1981 GL500I
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05-03-2007, 9:11 AM
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TechJD
Joined on 02-10-2007
Posts 256
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I see a lot of reads and no post
would any like to see my mirror and other tools used ?
1981 GL500I
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05-03-2007, 5:33 PM
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Anonymous
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JD,
I used a small mirror like you have in the pictures to have a look at my cam chain after I bought the bike. I could not see any of the adjusting slot either above or below the locking bolt. So I am assuming the adjuster is right in the middle of its range of movement. But, I have to say it was very difficult to get a good look and I wouldn't bet my engine that I was seeing what I thought I saw.
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05-03-2007, 6:59 PM
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TechJD
Joined on 02-10-2007
Posts 256
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Ok I changed the image and outlined part of the tensioner slot in yellow
to see the slot I used a small pivothead LED flashlight
and shined it on the mirror (you can see the head)
the mirror is right under the adjuster
I wish my camera would have picked up more but I must have moved
I took several shots and this was the best one
also on the top image to see the chain I shoved the light in first and aimed it at the chain with the mirror
the light has about a 4 in neck on it
if you look on the page in the link above I am pretty sure I'm lookin at the backside of the slot meaning it has that much room to move forward
here are a little larger image not croped so tight (bigger in area coverage not in size Charles, tryin not to post large images )
I hope this post helps someone
1981 GL500I
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05-04-2007, 10:03 AM
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TechJD
Joined on 02-10-2007
Posts 256
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Well after lookin it over I'm either about to hit halfway or just past but looks more like about to hit halfway
1981 GL500I
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05-05-2007, 6:54 AM
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fll1441
Joined on 11-06-2006
Fort Lauderdale, FL
Posts 751
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JD,
How many miles are on that motor?
1982 CX500 Custom
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05-05-2007, 8:43 AM
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TechJD
Joined on 02-10-2007
Posts 256
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53,700 but I'm thinking it was replaced before I got the bike
it had about 46,800 when I got it in Oct 2005
1981 GL500I
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05-07-2007, 8:58 AM
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Abes_CW
Joined on 04-17-2007
saskatoon
Posts 530
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I've a question about the adjustment process:
Having the left bank on TDC, the manual says to loosen then retighten the cam chain adjustment bolt. What it doesn't say is how far do you back out the adjuster before retightening?
Thanks,
Darren
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05-07-2007, 10:34 AM
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R80Dave
Joined on 03-03-2006
Appleton, WI
Posts 851
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Absolutely not more than 2 turns. If you go too far you will have to pull the engine to fix it.
David in Wisconsin
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05-07-2007, 1:47 PM
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TechJD
Joined on 02-10-2007
Posts 256
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hmmm I backed mine out till it stoped then waits a few second then retightened it
I'm not saying try this as something might fll off inside
maybe I jsut got lucky :)
1981 GL500I
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05-07-2007, 2:28 PM
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fll1441
Joined on 11-06-2006
Fort Lauderdale, FL
Posts 751
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I thought it couldn't come out too far because the "shoulder" on the adjusting bolt would hit the rear cover before the bolt would thread all the way out. But, I wouldn't swear to it.
1982 CX500 Custom
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05-08-2007, 7:34 AM
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Eagle1935
Joined on 05-07-2007
Stuttgart, Germany
Posts 63
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Hi,
I'm new to the forum.
I have '81 CX500 Custom. It has 33,000 miles on the clock. To my inexperienced ear, it seems to knock and rattle a bit. In comparison to the samples Shep posted, I'd say it somewhere between the two. The knocks and rattle do subside once I put it in gear. I wish I had another bike near by that I could listen to.
In reviewing the service records there's note that a rattle was noticed in 1995 and a Honda service mechanic adjusted the camchain tensioner. However, the action didn't resolve the noise. The mechanic used a stethoscope to locate the noise in the right lower rear of the engine. Fortunately, the bike has only had about 3000 miles put on it since that service.
Is there a way to determine if the camchain and tensioner needs to be replaced without taking the engine out? Besides noise, are there other indicators that the camchain needs replacing? I don’t have access to dental mirror to try JD’s technique but if that’s the best method available I’ll find one. I want to prevent engine damage but I would also like to avoid taking the engine out unless it’s necessary. At this point, I don’t think there’s anything else that would require and engine out repair.
I’m going to try adjusting the camchain tensioner again to see if that helps the rattles.
Thanks for your collective expertise. This is a great resource.
<><
Jeff
'81 CX 500 Custom
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05-08-2007, 8:10 AM
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TechJD
Joined on 02-10-2007
Posts 256
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other noises hmm lets see lol
as Shep said in another post the cluch rattles on them , I think that would be the only that quits when you put it in gear
had a bike mechanic told me mine had maybe a little piston slap, (what ever that means), but he did say it was normal and nothing to worrie about on these old bikes
As for the tensioner there is no other way to check it with out take the motor off the bike and disasimble it
1981 GL500I
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05-08-2007, 9:22 AM
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Harold
Joined on 12-27-2006
Beside Washademoak Lake, N.B. Canada
Posts 350
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This is from the buying tips page at Rob's CX site
"Another way to detect a worn
cam chain on Zs, As, Bs and GL500s is to peer behind the radiator at the fan,
which is attached to the front end of the camshaft. Put the bike in 5th gear
and very gradually wind the engine to and fro by nudging the rear wheel. There
should be no movement of the flywheel, visible and feelable through
the timing aperture, without a corresponding movement of the fan.
If there is slack in the cam chain, the crankshaft will be able to move a fraction
without a corresponding camshaft / fan movement. This trick does not work with
the electric fans of the 650s."
I have never done this, but it should work, I would think that using the bolt on the front of the crank to turn the engine would work as well as turning the wheel.
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
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05-08-2007, 12:30 PM
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Eagle1935
Joined on 05-07-2007
Stuttgart, Germany
Posts 63
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![Yes [Y]](/cs/emoticons/emotion-21.gif)
Re: CamChain
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Thanks for responding guys. I'll give Rob's test a try. I might as well try Harold's suggestion too. I have to access the front crank bolt to adjust the tensioner anyway.
<><
Jeff
'81 CX 500 Custom
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05-09-2007, 1:08 PM
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TechJD
Joined on 02-10-2007
Posts 256
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Harold in theary it sounds good, but just as easy to look the tensioner slot I think
1981 GL500I
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11-12-2007, 2:41 PM
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squigbobble
Joined on 04-10-2007
Yorkshire
Posts 117
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Would that camchain checking trick work on ones with an automatic tensioner?
I had thought of devising a tool (more accurately, bending a coathanger) so that I could poke the bit of the camchain that you can see through the inspection port, the idea being to feel for any slack in it. Is that as daft as it sounds?
'83 CX500 Eurosport - distributed around my cellar.
'98 Bandit 600 - back brake in pieces, borderline illegal back tyre.
Fan & flywheel puller kits, £3 + postage
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11-18-2007, 9:48 AM
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DaWei
Joined on 11-25-2006
Atlantic County, NJ
Posts 446
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Without actually having tried it, I'm going to guess that Harold's suggestion has a lot of merit. It removes any play in the tranny, shaft and final drive from the equation, so you don't need to watch the inspection port in order to know when the crankshaft is moving, and it's difficult to watch the port and the fan at the same time. The crank bolt and the fan are positioned where you can easily turn one and watch the other. When you move the bolt, the fan should move also. I can't see any reason that would not work with an auto tensioner as well.
Dave in NJ
'80 CX500 C - out of action, pending Triple Bypass
'78 CX500 - needs NJDMV Title before 20-Aug-09
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Honda CX500 & G... » CX500 GL500 Tra... » General Discuss... » CamChain
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