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This is the direction that I went to fix the weak ACCTs that were making the knock knock racket upon cold start up.
I ordered the inexpensive MCCTs from e-bay and installed them today. The installation went as expected with the exception of what someone mentioned earlier about the long adjustment bolt interfering with the coolant reservior. The bolt is so long that it keeps the coolant tank from being able to return to it's possition.
My solution was to shorten the bolt. After the MCCT was installed and adjusted I took a hacksaw to the threaded portion of the bolt. (I love it when a hacksaw is involved in a repair!) I removed enough of the bolt to ensure the reservior could fit back in it's space. I decided that if I need to adjust the MCCT in the future that I could use pliers or chanel locks or vice grips to rotate the adjustment shaft. Or I could dremel a slot in the back of the threaded portion and use a screw driver to adjust it. Or, since the nut on the end of the adjustment bolt is pinned on, I could drift out the pin, drill a hole in the threaded shaft and pin the nut on the shaft that remains. Like it came.
In any case the engine starts up smooth and quiet, like a Vulcan should.
The repair was fairly easy and I would recommend it to anyone who is currently putting up with the knocking of loose cam chains.
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This is the length of the adjusting bolt that I removed.
I ordered the inexpensive MCCTs from e-bay and installed them today. The installation went as expected with the exception of what someone mentioned earlier about the long adjustment bolt interfering with the coolant reservior. The bolt is so long that it keeps the coolant tank from being able to return to it's possition.
My solution was to shorten the bolt. After the MCCT was installed and adjusted I took a hacksaw to the threaded portion of the bolt. (I love it when a hacksaw is involved in a repair!) I removed enough of the bolt to ensure the reservior could fit back in it's space. I decided that if I need to adjust the MCCT in the future that I could use pliers or chanel locks or vice grips to rotate the adjustment shaft. Or I could dremel a slot in the back of the threaded portion and use a screw driver to adjust it. Or, since the nut on the end of the adjustment bolt is pinned on, I could drift out the pin, drill a hole in the threaded shaft and pin the nut on the shaft that remains. Like it came.
In any case the engine starts up smooth and quiet, like a Vulcan should.
The repair was fairly easy and I would recommend it to anyone who is currently putting up with the knocking of loose cam chains.
This is the length of the adjusting bolt that I removed.
Cam Chain Tensioner For Kawasaki Vulcan 750 VN750A 86-06 Yamaha YZ/WR 250 450 699919529858 | eBay
Find many great new & used options and get the best deals for Cam Chain Tensioner For Kawasaki Vulcan 750 VN750A 86-06 Yamaha YZ/WR 250 450 at the best online prices at eBay! Free shipping for many products!
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Cam Chain Tensioner For Kawasaki Vulcan 750 VN750A 86-06 Yamaha YZ/WR 250 450
Condition:
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Compatibility:
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Quantity:
More than 10 available / 37 sold
Price:
US $19.98
Here's what I did with the ones I bought like yours. Shown here is the front cyl (just cuz it was easier to photograph), but I did the same on both so they'd match.
It's just a chromed acorn nut from the hardware store that I applied over the shortened bolt end with some loctite. I figured if that didn't hold, I could use JB Weld instead but the loctite has worked fine so far.
I also added some high-temp pipe dope to the threads as they pass through the aluminum piece. They tended to seep a bit of oil, especially on the rear cyl.
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