Across
1. Uncontrolled engine explosions
6. Upper limit of piston travel, briefly
8. Motorcycle drivetrain component, often
9. Engine-incontinence inhibitor (3, 4)
10. With 24-Across, standard equipment abbr.
11. Service pauses at the track (3, 5)
13. Gasoline thief’s tool
15. Oxygen ____, exhaust-manifold item
18. Irritating tire pressure problem (4, 4)
19. Sparking ignition item
22. Parallel procedure, perhaps
23. Odometer reset reading
24. See 10-Across clue
25. Timing chain adjuncts
Down
1. Auto seats, sometimes
2. Common battery cable terminal
3. Radiator’s cooling devices
4. Yellow-bumper NASCAR driver
5. Dealer’s showroom guys
6. Steering system components (3, 4)
7. Battery compartments
12. Road-tripper’s just-in-case trunk items
14. Engine-hood support (4, 3)
16. Convertibles, slangily
17. Exhaust system mount
18. Grip-enhancing tread slits
20. Wiring problem, ____ connection
21. Single-overhead-camshaft code
©Murray Jackson
