SOHC.co.uk Forums > CB350/400

cam chain tensioner slippe broke?

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McCabe-Thiele (Ted):
It might be hard to see as they discolour so not easy to view without a  decent light source, is your tensioner horseshoe nice & free?

Eldrick:

--- Quote from: McCabe-Thiele (Ted) on June 11, 2024, 04:58:42 PM ---It might be hard to see as they discolour so not easy to view without a  decent light source, is your tensioner horseshoe nice & free?

--- End quote ---

I don't know, will check tomorrow and get a bigger light...

Laverda Dave:
I agree with Ted. If the cushions are still fitted don't try to remove them, they should be fine and are there to hold the tension blades in place, they are not subject to wear as such but being rubber they do harden during their life. I replaced one in Ratty as I bought a new horseshoe from DSS and of course it didn't come with the cushion so I tried to retrieve the old one but it proved to be impossible to remove so I bought a new one. I expected it to be soft rubber being new but it was really hard!
You really do need to check the horseshoe pivot though as Ted mentions, if the cam chain has been slack it rubs on the pivot point of the horsehoe (and the barrel casting if you are unlucky) and causes it to sieze. DSS sells new ones that have been made from CNC cut alloy with a brass pivot joint, I think they are about £80. If the horeshoe pivot is siezed you need to remove the lower engine case to allow access to the two fixing bolts, dont be tempted to renew the tensioner blades whilst keeping a siezed horseshoe, you'll be wasting your money.

McCabe-Thiele (Ted):
Dave is right about the hardness of the cushions - they felt more like a type of nylon material.

Athame57:

--- Quote from: McCabe-Thiele (Ted) on June 12, 2024, 11:55:54 AM ---Dave is right about the hardness of the cushions - they felt more like a type of nylon material.

--- End quote ---
But does that make them better of worse? The DSS horseshoe is surely an improvement over OE.

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