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k75 vs k100 cam chain tensioner Sun May 13, 2018 4:50 pm
audibob
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Prior to removing my timing chain I found I could press the tensioner downwards, which, according to the forum is worn and needs replacing.
The chain was showing sideways wear but not on its length.. none of the guides were worn.,after 60k miles.
The K75 unit has a facility to hold oil pressure and thus tension on the chain via a ball bearing and spring in its spigot in the oilway.
The k100 tensioner does not have any obvious way of holding oil pressure with the engine stationary that I can see.
If the engine oil pressure has dissapated naturally with the engine stopped, then I should be able to press down against the internal tensioner spring.
Should the oil pressure remain constant , even with the engine off ?
If it should, then either my tensioner is duff, or my engine oil pressure relief valve may be suspect.
I would love to fit the k75 tensioner with its back pressure valve, which also helps to prevent overloading the rachet mechanism
I wonder whether the k75 unit spigot would fit in to the recess on the k100,
or , to be adventurous, fit the k75 unit minus its spigot , and cut an access hole in the timing cover and use a small lever to lift the rachet mechanism manually to take up any wear on the chain.
Fabricate a small inspection plate and tri bond to seal it.
Anyone else been able to push down on their tensioner on their k100, and what did they do to cure it..
Anyways, spare k100 tensioner ordered.
Then I have another problem.
In order to see if the second unit is holding its pressure and tension, I have to remove the cover I have just fitted with its new pain in the ass to fit teflon seal..
Wished I had kept the old type seal in the cover until I was satisfied with the tensioner
Bob
The chain was showing sideways wear but not on its length.. none of the guides were worn.,after 60k miles.
The K75 unit has a facility to hold oil pressure and thus tension on the chain via a ball bearing and spring in its spigot in the oilway.
The k100 tensioner does not have any obvious way of holding oil pressure with the engine stationary that I can see.
If the engine oil pressure has dissapated naturally with the engine stopped, then I should be able to press down against the internal tensioner spring.
Should the oil pressure remain constant , even with the engine off ?
If it should, then either my tensioner is duff, or my engine oil pressure relief valve may be suspect.
I would love to fit the k75 tensioner with its back pressure valve, which also helps to prevent overloading the rachet mechanism
I wonder whether the k75 unit spigot would fit in to the recess on the k100,
or , to be adventurous, fit the k75 unit minus its spigot , and cut an access hole in the timing cover and use a small lever to lift the rachet mechanism manually to take up any wear on the chain.
Fabricate a small inspection plate and tri bond to seal it.
Anyone else been able to push down on their tensioner on their k100, and what did they do to cure it..
Anyways, spare k100 tensioner ordered.
Then I have another problem.
In order to see if the second unit is holding its pressure and tension, I have to remove the cover I have just fitted with its new pain in the ass to fit teflon seal..
Wished I had kept the old type seal in the cover until I was satisfied with the tensioner
Bob
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Yamaha 90
Honda CD 175
Honda CB 360
Triumph T 140V Bonneville
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Cz 175
Yamaha XS 750
R 100/7
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K100 LT
K100 LT current bike