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A A A A Author Topic: cx650 cam chain tensioner  (Read 141 times)

VC3

cx650 cam chain tensioner
« Started on: 19-Jan-20, 11:17 »
I stumbled upon this on USA EBay, quite surprised to see it:

https://www.ebay.com/itm/1983-honda-Cx650c-Cam-Chain-Tensioner-GL650-CX650/174104478707?hash=item28896f83f3:g:K0EAAOSwAfVd2MZH

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He's also got these:  https://www.ebay.com/itm/CX650C-Cam-Chain-Guides/174104480954?hash=item28896f8cba:g:1uMAAOSwDCFd2MfB

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Mins Man

Re: cx650 cam chain tensioner
« Reply #1 on: 19-Jan-20, 19:20 »
Gold!

VC3

Re: cx650 cam chain tensioner
« Reply #2 on: 20-Jan-20, 04:44 »
Gold!

I don't know how rare they are (seem rare though) or what they are worth, but they are  still up this morning, seems someone should grab them and have them sent to me for forwarding even with the exchange rate and postage.

Seagrass

Re: cx650 cam chain tensioner
« Reply #3 on: 20-Jan-20, 07:30 »
The guides are used and I am guessing the tensioner may be also.

The last time tensioners were available in Australia from Honda, the list price was $240.00

Seagrass

VC3

Re: cx650 cam chain tensioner
« Reply #4 on: 20-Jan-20, 08:29 »
Hi Cephas....all of it is used according to the seller.

denuto

Re: cx650 cam chain tensioner
« Reply #5 on: 20-Jan-20, 13:26 »
Is a 650 cam chain tensioner different to a 500?

Not that I have a spare of either, but if the same tensioner fits either motor there would be a better chance of finding one than would be the case if the 650 one is unique.

Kathy

Re: cx650 cam chain tensioner
« Reply #6 on: 20-Jan-20, 13:30 »
Is a 650 cam chain tensioner different to a 500?
The 1977-1981 model CX500s had manual cam chain tensioners while the 1982 model CX500s and all CX650s had automatic cam chain tensioners.

Onetrack

Re: cx650 cam chain tensioner
« Reply #7 on: 20-Jan-20, 17:13 »
These tensioners were introduced on the Turbos (500 &650) and then used for the  400, 500 and 650 Euros and also GL Silver Wings of each size until the end of production. There is a Honda workshop modification to improve lubrication of the auto tensioner plunger.  I don't think Honda ever really overcame the problems of the cam chain system, right from the start there were attempts to improve the design with several recalls and workshop bulletins.  The problem starts with the adaptation of a multi cylinder V car engine design to a two cylinder engine with its uneven cam lobe pressures at low revs thus causing chain flap that wears everything.

I have several complete sets of unused tensioners and sliders here.
"Young" Les F

bahn88

Re: cx650 cam chain tensioner
« Reply #8 on: 20-Jan-20, 19:22 »
the late 70's and 80's unfortunately were associated with several design/quality issues with Hondas-maybe this coincided with Soichiro Honda;s departure from the overseeing role.....  2sad

The DOHC (in line 4) bikes of the period had cam chain/tensioner issues and the early VF (V four) series had poor cam hardening, lubrication issues etc.

Having said that-Ebay from a CX viewpoint throws up interesting NOS-I recently purchased cam tensioner parts for "lil bro" (the 500) at a reasonable price compared with the questionable reproduction ones so its worth a weekly search-or for those members retired a few times a week 2wink

 


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