Triumph TR6 PI Operation Manual page 83

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DE<;:ARBONIZE, REFACE ALL VALVES AND SEATS
GRIND IN VALVES, TUNE ENGINE
12.29.21
Dismantling
1. Remove the cylinder head 12.29.10.
2. Remove the inlet and exhaust valves and identify for
reassembly 12.29.62
3. Remove carbon deposits from the cylinder head
combustion chambers and pqrts.
4. Clean the face of the cylinder head, removing all
tra~es
of carbon and high spots. Clean out the water
ways.
5. Reface the valve seats removing only the minimum of
material
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instructions 9 and 10, 12.29.18.
6. Degrease the valves and remove all traces of carbon.
Reface the valves to the correct seat angle - see Data.
7. Grind-in the valves to their respective seats in the
cylinder head - instructions 14 to 16, 12.29.18.
8. Turn the crankshaft until numbers one and six
pistons are at T.D.C. Fill the remaining cylinder bores
with rag and blank off the water passages and
camfollower apertures. Using a wooden spatular
remove carbon from the piston crowns leaving a band
of carbon round the periphery of the piston crown.
9. Repeat instruction 8 on numbers two to five pistons.
10. Renfove the blanking material from the cylinder
bores, water passages and camfollower apertures and
clean the cylinder block face removing carbon and
high spots.
ENGINE
8
~~C·
Reassembling
11. Lubricate and refit the valves to their
guides - instructions 17 to 22,12.29.18.
12. Refit the cylinder head 12.29.10.
13. Tune the engine 12.49.02.
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Triumph TR6 Manual. Part No. 545277 Issue 1
respective
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