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dissasembly of rear shock covers

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Muddy
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Posts: 233
Joined: Wed Mar 30, 2011 11:03 pm
Location: Sunshine Coast, QLD, Australia

Post by Muddy » Sat Mar 03, 2012 9:35 pm

G'day G-Man

Thanks for the tips and great info. I'm still envious of your workshop tools and machines.

I'm onto a few of those damper seals - seems they are hard to get hold of, so thanks for the tip.

I work in Brisbane and live about an hour North on the Sunshine Coast, commuting each day by road. If you do get a bit of time spare on your trip, let me know.
Thanks.

Regards

Muddy

'64 C72
'63 C72

User avatar
Muddy
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Posts: 233
Joined: Wed Mar 30, 2011 11:03 pm
Location: Sunshine Coast, QLD, Australia

Post by Muddy » Sun Mar 25, 2012 2:04 am

G'day Guys

Righteo, I've got the C72 rear shocks disassembled, cleaned, fitted new oil and seals - but can't get them reassembled!

Is it possible there is an air lock in the shock?

I'm at the stage where I've put new oil in the shock and gone to put the new seal into place. On reassembly, the seal has gone down as far as flush with the top of the shock body and doesn't seem to want to go any further. Only been tapping with a bush and hammer at the moment - but just appears to be very reluctant to go any further. Is it possible the air is locked and the shock and just compressing with nowhere to go? If so, how do you overcome this step?

Or do I have to press the seal back in using something similar to G-man's removal tool that I kindly copied to extract the seals?

Hope you can help.
Thanks.

Regards

Muddy

'64 C72
'63 C72

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G-Man
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Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
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Post by G-Man » Mon Mar 26, 2012 7:36 am

Hi Muddy

Just got back from Oz. My trial at Townsville got postponed because of bad weather but I managed to install some of our kit at Douglas Park, NSW. I really enjoyed my first trip to your beautiful country but was very short of 'play' time. I hope to come back.

The seal should fit smoothly with finger pressure. Sounds like you might have something preventing it from going in further. Is the damper tube fully home?

I was able to push all of mine in with my fingers so I would suspect something mechanical. If it is an air lock I would try and work the damper rod a little with the seal just located at the top of the body.

Cheers

G

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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Muddy
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Posts: 233
Joined: Wed Mar 30, 2011 11:03 pm
Location: Sunshine Coast, QLD, Australia

Post by Muddy » Tue Mar 27, 2012 4:10 am

On ya' G-man, thanks for this. Will have a good look on the weekend - it was getting late the afternoon and couldn't see real well. I was figuring that if the seal had to be "pulled out" using your u-beaut tool, then maybe it needs to be pushed back in using a "reverse-type" tool?

The seals in my shock were certainly tight - tried to pull them out by hand using a bar thru the shock eye but it was just too tight, so I made a similar puller to your tool - very handy.

Glad you enjoyed the trip to Oz - but it certainly has been wet here; locally we had 15 inches of rain in just one afternoon last week - had a whole summer's rain in that afternoon.

Can I ask what sort of gear you supply?
Thanks.

Regards

Muddy

'64 C72
'63 C72

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G-Man
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Post by G-Man » Tue Mar 27, 2012 12:59 pm

Hi Muddy

We have developed a small sensor which bolts into a hole bored in a railway line to measure the tension in the track or the load exerted by trains on the track. Also in there is a temperature sensor and a two-axis accelerometer to measure vibration.

The sensors are connected to a battery-powered data logger which emails information back to us for distribution to the customer. Well, you did ask.... :-)

http://www.vortok.com/track-maintenance ... d-detect-3

Cheers

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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Muddy
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Posts: 233
Joined: Wed Mar 30, 2011 11:03 pm
Location: Sunshine Coast, QLD, Australia

Post by Muddy » Wed Mar 28, 2012 4:42 am

Wow G-Man

I bet that kind of technology fits comfortably with that found within the Dream.
Thanks.

Regards

Muddy

'64 C72
'63 C72

conbs
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Joined: Mon Mar 16, 2009 3:29 pm
Location: SW Idaho

Sensor

Post by conbs » Thu Mar 29, 2012 7:53 pm

G-man, that is a pretty keen little unit.

If you ever make it to Idaho, bring one along and we'll go "bogie hunting" down by the Air Force training range in Owyhee County. I hear there are alot of them down there and they are real big.

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