Stihl 066 Chain Tension Adjustement Repair

Stihl 066 Chain Tensioner Repair

Today I fixed the cuts to my Stihl 066 Chain Tension Adjustment.

I can’t say I fixed the adjustment.  I can say I covered up the holes in the adjustment which makes me feel better that it won’t fall apart as easily.

I mixed some JB Weld Steel Stick and slathered it on where the chain tension adjustment needed repair from being cut by the drive links of the chain.

The photograph at the top of this post shows the results of my chain tension adjustment repair.  There would normally be the chain tension adjustment screw and cover plate in this photo.  I removed them for the repair.

Here’s a photo of before the repair.

Stihl 066 Chain tensioner damage
The front of the chain tension adjustment. You can see where the drive links ate away at the magnesium holding the chain tension adjustment.

How things look now.

Stihl 066 Chain Tensioner Repair
I smeared JB Weld where the chain tension adjustment was cut by the chain drive links.  This repair is purely cosmetic and not structural.

I won’t call today’s repair structural.  I’m not even sure I should call it permanent.  The repair gives me piece of mind that if the chain is ever thrown it won’t do more damage to the chain tension adjustment.

Author: John Holden

I'm a chainsaw, chainsaw mill, log splitter, axe and outdoor fanatic. I purchased a my first chainsaw, a Stihl 020, in 1992. I've added a Stihl 036 and Stihl 046 to my collection. I split wood with a Wetterlings Splitting Maul and Ames Super Splitter. When my body's had enough I use a Timberwolf TW-P1 log splitter. I use a Logosol Big Mill basic and Timberjig to mill lumber. I stack firewood in Holzhausen round wood piles.

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