HLT 306V TOPICS 1–5 DISCUSSION BOARD
2026 COMPLETE COURSE REVIEW
QUESTIONS AND ANSWERS VERIFIED GRADED
A+
◉ Technician A says that the valve guide must be clean and not worn
excessively before repairing valve seats. Technician B says to pick a
guide pilot that slides down to the bottom of the guide easily. Who is
correct? Answer: A only
◉ Reconditioning valves is being discussed. Technician A says the
valve is stroked across the stone at the same time it is fed in.
Technician B says back the valve out of the stone when the last pass
is complete. Who is correct? Answer: Both A and B
◉ Reconditioning OHC cylinder heads is being discussed. Technician
A says cylinder head warpage does not affect camshaft bearing bore
alignment. Technician B says if the head is to be straightened by
heat, brass shim stock equal to the thickness of the total amount of
warpage is placed under each end of the cylinder heads. Who is
correct? Answer: Neither A nor B
, ◉ A valve seat is too wide. The area of contact is high toward the
head of the valve. The seat should be cut with a ________ stone.
Answer: 30-degree
◉ Technician A says valve head runout can be checked with the valve
in the valve machine. Technician B says a total indicated reading
(TIR) greater than 0.002 inch (0.05 mm) on the valve head requires
valve replacement. Who is correct? Answer: Both A and B
◉ Technician A says that valve guides can be pearlized to restore
them to their original condition. Technician B says that worn valve
guide inserts can be pressed or driven out and new ones installed.
Who is correct? Answer: B only
◉ Guide replacement is being discussed. Technician A says to match
guide materials to valve stem materials when selecting valve guide
inserts or liners. Technician B says all guides are removed toward
the combustion chamber. Who is correct? Answer: A only
◉ Reconditioning valve seats is being discussed. Technician A says if
the seat is too narrow, it is corrected by using the same degree stone
as the valve seat angle. Technician B says if the valve seat is too wide,
throat the seat. Who is correct? Answer: A only
2026 COMPLETE COURSE REVIEW
QUESTIONS AND ANSWERS VERIFIED GRADED
A+
◉ Technician A says that the valve guide must be clean and not worn
excessively before repairing valve seats. Technician B says to pick a
guide pilot that slides down to the bottom of the guide easily. Who is
correct? Answer: A only
◉ Reconditioning valves is being discussed. Technician A says the
valve is stroked across the stone at the same time it is fed in.
Technician B says back the valve out of the stone when the last pass
is complete. Who is correct? Answer: Both A and B
◉ Reconditioning OHC cylinder heads is being discussed. Technician
A says cylinder head warpage does not affect camshaft bearing bore
alignment. Technician B says if the head is to be straightened by
heat, brass shim stock equal to the thickness of the total amount of
warpage is placed under each end of the cylinder heads. Who is
correct? Answer: Neither A nor B
, ◉ A valve seat is too wide. The area of contact is high toward the
head of the valve. The seat should be cut with a ________ stone.
Answer: 30-degree
◉ Technician A says valve head runout can be checked with the valve
in the valve machine. Technician B says a total indicated reading
(TIR) greater than 0.002 inch (0.05 mm) on the valve head requires
valve replacement. Who is correct? Answer: Both A and B
◉ Technician A says that valve guides can be pearlized to restore
them to their original condition. Technician B says that worn valve
guide inserts can be pressed or driven out and new ones installed.
Who is correct? Answer: B only
◉ Guide replacement is being discussed. Technician A says to match
guide materials to valve stem materials when selecting valve guide
inserts or liners. Technician B says all guides are removed toward
the combustion chamber. Who is correct? Answer: A only
◉ Reconditioning valve seats is being discussed. Technician A says if
the seat is too narrow, it is corrected by using the same degree stone
as the valve seat angle. Technician B says if the valve seat is too wide,
throat the seat. Who is correct? Answer: A only
