SOHC.co.uk Forums > CB350/400
cam chain tensioner slippe broke?
Laverda Dave:
Buy both the front and back blades whilst you have the engine open, false economy not to especially looking at the slipper blade.
Make sure the rubber cushion is located in the top blade holder that is bolted to the top of the cylinder head (and the piece you have to remove to extract the front cam chain tensioner blade). Also check the similar cushion is located in the tensioner horseshoe, if you are not going that deep into the engine i.e. you are not removing the barrels, you'll need to use a torch to look down into the horseshoe. The cushion is difficult to see because it is so small but being curved you should make it out with a torch. If the cushions are missing the tensioner will have to much free play and won't tension properly.
McCabe-Thiele (Ted):
Pricey little things those cushions.
Eldrick:
I will replace both tensioner and guide and if I find some cushions, those too.
Thanks for the advice
McCabe-Thiele (Ted):
--- Quote from: Eldrick on June 11, 2024, 02:07:13 PM ---I will replace both tensioner and guide and if I find some cushions, those too.
Thanks for the advice
--- End quote ---
If the bottom cushions are intact I would be minded to leave them alone.
I suspect they do not have to be changed as a matter of routine if you are not splitting the crank cases.
They are fiddly to remove and fit new ones even when you have the tensioner horseshoe in your hand.
It would be easy for them to get lost during fitting.
Are you sure the tensioner horseshoe is not seized - mine was solid with carbon depoits.
Eldrick:
--- Quote from: McCabe-Thiele (Ted) on June 11, 2024, 02:42:33 PM ---
--- Quote from: Eldrick on June 11, 2024, 02:07:13 PM ---I will replace both tensioner and guide and if I find some cushions, those too.
Thanks for the advice
--- End quote ---
If the bottom cushions are intact I would be minded to leave them alone.
I suspect they do not have to be changed as a matter of routine if you are not splitting the crank cases.
They are fiddly to remove and fit new ones even when you have the tensioner horseshoe in your hand.
It would be easy for them to get lost during fitting.
Are you sure the tensioner horseshoe is not seized - mine was solid with carbon depoits.
--- End quote ---
from my first inspection I am not even sure there is one there to start with :o
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