How does automatic tensioner work on cam chains?
What it does is put enough pressure on the rack to push it forward and the pawl clicks in as the chain seats in and cam drive wear occurs… but not always completely. The key point is that the automatic tensioner clicks in incremental amounts. Cam chains wear/seat dynamically (no increments).
Why is there no tension control on my Chainsaw?
The spring isn’t strong enough to resist kickback in the chain under crank deceleration, so it isn’t of any value in tension control in that area. What it does is put enough pressure on the rack to push it forward and the pawl clicks in as the chain seats in and cam drive wear occurs… but not always completely.
When to replace HyVo chain tensioners in a car?
One guy on the KLX site thinks it’s okay to replace HyVo chains at 12,000 miles. Those chains are the same design used in some automobiles that run for about a lifetime and on the primary drives of many in-line fours. Other guys think it’s okay to back out the mount bolts to effectively override the automatic system and over-tighten the chain..
Can a Honda VTR1000 cam chain tensioner fail?
If the indexing falls in place properly for the mechanical requirements they will work. If it doesn’t they will fail. There is one exception. The Honda VTR1000 can have catastrophic failure of the front cylinder tensioner, which can take out the head and piston – the thing doesn’t just quit working, IT BREAKS!
Are there any problems with the Harley Davidson cam chain tensioners?
Harley, of course, made a fairly expensive upgrade including a new oil pump and hydraulic cam chain tensioners run by the engine oil and re-designed shoes. They also went to a new style chain. The new design is very reliable and as of like 2009 I haven’t heard of any problems with them.
How much does it cost to replace twin cam chain tensioner?
The inspection and replacement of the inner shoe is expensive and involves removing the oil pump and cam, the outer one shoe is easier but you have to check both of them. Our dealership wanted $400 just to inspect the shoes, which they wouldn’t do because they said if they get that far into it they might as well just replace them.
Is there a problem with hydraulic cam chain followers?
Some believe that the problem still exists even with the new hydraulic cam chain followers, but we are not seeing that at all. Our opinion is that if you have an affected model that you take action as soon as you can and avoid the impending problem all together since you can’t predict when it will happen.
What does high flow oil pump do to chain tensioner?
Harley says that the high-flow oil pump provides increased oil pressure at high-operating temperatures. It changes the chain tensioner from spring to hydraulic.