Cam chain tensioner — removal and installation (Triumph Rocket III)

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Warning! Before starting work, ensure the motorcycle is stabilised and adequately supported. This will help prevent it from falling and causing injury to the operator or damage to the motorcycle.

Removal

1. Remove the cam cover (see page 3.5).

2. Remove the inspection plug from the clutch cover.



3. Turn the engine until the maximum numbers of cam lobes are facing away from the valves. This will prevent the cams from springing around when the cam chain tensioner is removed.



4. Remove the center nut and washer from the cam chain tensioner.

Warning! The centre nut of the cam chain tensioner is under spring tension. Always wear hand, eye and facial protection when releasing the centre nut as unprotected areas of the body can be injured if the spring tension released in an unexpected or uncontrolled way.

5. Withdraw the spring and nut from the tensioner body.



6. Remove the cam chain tensioner body from the head.

Inspection

1. Inspect the tensioner spring for damage and deformation. Renew as necessary.

2. Inspect the tip of the tensioner plunger for wear and damage. Renew as necessary.

Installation

1. Fit a new gasket to the tensioner body.

2. Set the tensioner plunger onto the first tooth of the ratchet by manually lifting the tensioner pawl and pushing the plunger into the tensioner body.



3. Look into the inspection hole. Rotate the crankshaft clockwise (as viewed from the front), until No.1 cylinder is at TDC. No.1 cylinder is at TDC when a «dot» mark on the crank gear is in alignment with the line in the upper crankcase.




In addition, timing marks on the camshaft sprockets should point downwards at a point level with the cylinder head. If they do not align as shown, turn the camshafts until they do align.



4. Fit the dowels of tool T3880202 to location holes in the cam sprockets, as shown in the diagram below. This will hold the cams in the correct timing position and prevent them from turning while the chain tensioner is fitted.




5. Fit the tensioner to the crankcase (ratchet teeth facing upwards) ensuring the gasket is not damaged during the process.

6. Fit and tighten the tensioner fixings to 9 Nm.

7. Push the tensioner plunger into contact with the chain guide using finger pressure.



8. Fit a new washer to the tensioner's centre nut.

9. Fit the spring to the tensioner body. Fit the centre nut and tighten to 23 Nm.

Warning! The centre nut of the cam chain tensioner is under spring tension. Always wear hand, eye and facial protection when releasing the centre nut as unprotected areas of the body can be injured if the spring tension released in an unexpected or uncontrolled way.

The article is reprinted from the website (MotoInstruction.ru)

10. Remove tool T3880202 and turn the crankshaft clockwise (as viewed from the front of the engine) through four complete revolutions. Stop when the timing marks on the crankshaft gear realign with the line in the upper crankcase.



11. Check that the camshaft marks align as described previously. Rectify as necessary.

12. When the timing checks have been satisfactorily completed, refit the inspection plug tightening it to 18 Nm.

13. Refit the cam cover (see page 3.6).

See this article in russian language

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Article about repair motorcycles «Triumph Rocket III» (2004-2018): «Cam chain tensioner — removal and installation»: https://motoinstruction.ru/en/Triumph/Rocket/III/engine/repair/111810 <a href="https://motoinstruction.ru/en/Triumph/Rocket/III/engine/repair/111810">Cam chain tensioner — removal and installation</a> - article about repair motorcycles «Triumph Rocket III» (2004-2018) from section «Engine repair». [url=https://motoinstruction.ru/en/Triumph/Rocket/III/engine/repair/111810]Cam chain tensioner — removal and installation[/url] - article about repair motorcycles «Triumph Rocket III» (2004-2018) from section «Engine repair».