Chain tensioner
1 - cap nut; 2 - tensioner housing; 3 - rod; 4 - plunger spring; 5 - washer; 6 - plunger; 7 - spring; 8 - cracker; 9 - spring ring; A - plunger surface; B - places of punching at the end of the body
In the cylinder head, there are differences in adjusting the clearances in the valve mechanism. The clearance at the exhaust valves on a cold engine should be in the range of 0.18–0.22.
At the chain tensioner, the plunger is fixed not with a retaining ring, but by punching the body. Therefore, the order of its disassembly is as follows.
1. Unscrew the cap nut 1, push plunger 6 as far as possible and tighten the cap nut. Then, while sinking the plunger, cut the edges of the body hole in places "IN" and remove the plunger with the spring 4. Unscrew the cap nut and remove the rod 3 together with the spring 7 and washer 5.
2. The tensioner is assembled in the reverse order of disassembly. After installing the plunger, open the body 2 at three points "IN". In this case, the protrusions from punching should not touch the surface "A" while moving the plunger.