Swapped primary chain tensioner
#1
Swapped primary chain tensioner
I decided to change the primary chain tensioner from stock HD to the Hayden M6-BT07 Primary Chain Tensioner.
The Hayden one was designed with springs, and will adjust according to the tension needed. Not like the stock one, which only works one way.
Procedure was fairly simple. Drain fluid, take derby cover and primary cover off. Take 2 bolts off the tensioner, and slide it out. Clean the whole area. BTW, after about 15k mls, the inside of the primary cover was covered with some light greyish oil, almost looked like aluminum powder. I don't recall seeing it before. Remnants from the clutch discs?
Easy to wipe of by hand, and degreaser made it even easier.
The Hayden chain tensioner is simply put together by inserting the springs into the shoe, and slide that on to the mount. As a tip, compress it and zip tie it together, makes it much easier to install. Just don't tighten the bolts all the way before cutting the zip tie...
After torqueing the bolts down, installed the new James Gasket - highly recommended, filling with oil, and replacing the Torx derby cover screws
with SS hex screws, time to start the engine.
It sounds a little quieter while idling, neutral is a bit easier to find. That whole mechanical clunk while shifting is slightly quieter.
Ease of mind put to rest, for now...
Thank you
FrankEGD
The Hayden one was designed with springs, and will adjust according to the tension needed. Not like the stock one, which only works one way.
Procedure was fairly simple. Drain fluid, take derby cover and primary cover off. Take 2 bolts off the tensioner, and slide it out. Clean the whole area. BTW, after about 15k mls, the inside of the primary cover was covered with some light greyish oil, almost looked like aluminum powder. I don't recall seeing it before. Remnants from the clutch discs?
Easy to wipe of by hand, and degreaser made it even easier.
The Hayden chain tensioner is simply put together by inserting the springs into the shoe, and slide that on to the mount. As a tip, compress it and zip tie it together, makes it much easier to install. Just don't tighten the bolts all the way before cutting the zip tie...
After torqueing the bolts down, installed the new James Gasket - highly recommended, filling with oil, and replacing the Torx derby cover screws
with SS hex screws, time to start the engine.
It sounds a little quieter while idling, neutral is a bit easier to find. That whole mechanical clunk while shifting is slightly quieter.
Ease of mind put to rest, for now...
Thank you
FrankEGD
#3
Now will the Hayden tension make a big difference? In my mind it will.
Thank you
FrankEGD
#4
Makes sense to me. It will probably will help though. One additional thought, most chains as they loosen, do so from chain wear ... not from heat. I don't really think your primary gets so hot as to cause that much heat expansion in the chain. The chains will "stretch over time (it's not actually stretching. The pins that join the links together wear and turn into a "D" shape extending the pitch of the chain). The "stretch" is actually the pins and bushings starting to wear which causes them to have a longer chain effect. So, have the tensioner retracting is really mute. But it certainly can't hurt either.
You're right about the slight grayish oil. Mostly from the clutch basket (friction disks and steel plates). They certainly make a mess of things. I change my primary fluid every oil change to help keep out all the crap. I know it's over kill but it's only another 38 oz of oil. That's more peace of mind too
You're right about the slight grayish oil. Mostly from the clutch basket (friction disks and steel plates). They certainly make a mess of things. I change my primary fluid every oil change to help keep out all the crap. I know it's over kill but it's only another 38 oz of oil. That's more peace of mind too
#6
So much noise coming from down there I'm thinking of doing the same thing, gonna go with the Hayden if I do. Nice thing about the Hayden is you don't have to pull the compensator to install. Thanks for the write up and pics, please keep us informed as to like and dislikes of the Hayden unit and especially if it quiets things down.
#7
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#10
I looked at that one, too. But that is a complete manual setup. I don't think the tension has to be adjusted that often, but with the Baker, the primary cover HAS to come off just to check it. It might be just me, but the design looks ok, it's just a step backwards.
It also doesn't matter to me, but the install requires the compensator and/or clutch basket to come of.
Thank you
FrankEGD