2025/2026 Exam Questions and Correct
Answers | New Update
12. measurement B in the figure is more than specified. Tech A says this
problem may bottom the lifter plunger. Tech B says a shim should be
installed under the valve spring.
A
B
Both
Neither - 🧠 ANSWER ✔✔B only
Measure the installed valve spring height from the lower edge of the top
retainer to the spring seat.
Tech A is wrong. Excessive installed valve spring height will not cause the
lifter plunger to bottom. Excessive installed valve spring height reduces
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,valve spring tension, which may result in valve float and cylinder misfiring
at higher speeds.
Tech B is correct because is the measurement is excessive, install shims
between the bottom of the valve spring and the top of the spring seat
surface on the cylinder head.
13. Tech A says that stuck valves may cause bent pushrods. Tech B says
that improper valve timing may cause bent pushrods
A
B
Both
Neither - 🧠 ANSWER ✔✔Both
-Stuck valves may cause bent pushrods. Improper valve timing may also
cause bent pushrods.
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,17. when measuring valve stem-to-guide clearance, Tech A says the valve
stems and guides should be measure at 3 vertical locations. Tech B says
the valve guide diameter should be measured with either a hole or snap
gauge
A
B
Both
Neither - 🧠 ANSWER ✔✔Both
-When measuring valve stem-to-guide clearance, stem diameter and guide
diameter should be measured at three vertical locations (-near the top of
the guide -the middle of the guide -the bottom of the guide)
Either a hole or a snap gauge can be used to measure the guide diameter
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, 29. Tech A says worn valve stem seals may cause rapid valve stem and
guide wear. Tech B says worn valve stem seals may cause excessive oil
consumption
A
B
Both
Neither - 🧠 ANSWER ✔✔B only
-worn valve stem seals generally do not cause stem or guide wear, but may
cause excessive oil consumption
30. While measuring valve springs, Tech A says the valve spring must be
rotated while measuring squareness. Tech B says that spring squareness
can be checked by rolling the spring on a surface plate
A
B
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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