MX-5 NA Service ManualMX-5 NA

Torque Specs Tools Parts Diagrams

TROUBLESHOOTING GUIDE

J-7spec table

Troubleshooting Guide

Problem	Possible Cause	Action	Page
Abnormal noise	Insufficient oil	Add oil	J-8
Abnormal noise	Deterioration of oil quality	Replace with specified oil	J-8
Abnormal noise	Worn bearing	Replace	J-24
Abnormal noise	Worn contact surface of countershaft gear	Replace	J-23
Abnormal noise	Worn contact surface of gears	Replace	J-23
Abnormal noise	Excessive gear backlash	Replace	—
Abnormal noise	Damaged gear teeth	Replace	J-23
Difficult to shift	Insufficient oil	Add oil	J-8
Difficult to shift	Deterioration of oil quality	Replace with specified oil	J-8
Difficult to shift	Worn synchronizer ring	Replace	J-24
Difficult to shift	Worn synchronizer cone of gear	Replace	J-24
Difficult to shift	Poor contact of synchronizer ring and gear cone	Replace	J-24
Difficult to shift	Excessive longitudinal play of gears	Replace	J-23
Difficult to shift	Worn bearing	Replace	J-24
Difficult to shift	Improper disengagement of clutch	Refer to Section H	—
Jumps out of gear	Weak detent ball spring	Replace	J-25
Jumps out of gear	Worn shift fork	Replace	J-24
Jumps out of gear	Worn clutch hub	Replace	J-23
Jumps out of gear	Worn clutch hub sleeve	Replace	J-23
Jumps out of gear	Worn gears	Replace	J-23
Jumps out of gear	Excessive gear backlash	Replace	—
Jumps out of gear	Worn bearing	Replace	J-24
Vibration	Incorrect installation of or loose power plant frame	Correct or tighten	J-45

Abnormal noise

Possible CauseInsufficient oil

ActionAdd oil

PageJ-8

Abnormal noise

Possible CauseDeterioration of oil quality

ActionReplace with specified oil

PageJ-8

Abnormal noise

Possible CauseWorn bearing

ActionReplace

PageJ-24

Abnormal noise

Possible CauseWorn contact surface of countershaft gear

ActionReplace

PageJ-23

Abnormal noise

Possible CauseWorn contact surface of gears

ActionReplace

PageJ-23

Abnormal noise

Possible CauseExcessive gear backlash

ActionReplace

Page—

Abnormal noise

Possible CauseDamaged gear teeth

ActionReplace

PageJ-23

Difficult to shift

Possible CauseInsufficient oil

ActionAdd oil

PageJ-8

Difficult to shift

Possible CauseDeterioration of oil quality

ActionReplace with specified oil

PageJ-8

Difficult to shift

Possible CauseWorn synchronizer ring

ActionReplace

PageJ-24

Difficult to shift

Possible CauseWorn synchronizer cone of gear

ActionReplace

PageJ-24

Difficult to shift

Possible CausePoor contact of synchronizer ring and gear cone

ActionReplace

PageJ-24

Difficult to shift

Possible CauseExcessive longitudinal play of gears

ActionReplace

PageJ-23

Difficult to shift

Possible CauseWorn bearing

ActionReplace

PageJ-24

Difficult to shift

Possible CauseImproper disengagement of clutch

ActionRefer to Section H

Page—

Jumps out of gear

Possible CauseWeak detent ball spring

ActionReplace

PageJ-25

Jumps out of gear

Possible CauseWorn shift fork

ActionReplace

PageJ-24

Jumps out of gear

Possible CauseWorn clutch hub

ActionReplace

PageJ-23

Jumps out of gear

Possible CauseWorn clutch hub sleeve

ActionReplace

PageJ-23

Jumps out of gear

Possible CauseWorn gears

ActionReplace

PageJ-23

Jumps out of gear

Possible CauseExcessive gear backlash

ActionReplace

Page—

Jumps out of gear

Possible CauseWorn bearing

ActionReplace

PageJ-24

Vibration

Possible CauseIncorrect installation of or loose power plant frame

ActionCorrect or tighten

PageJ-45

05U0JX-005

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See also

J-8TRANSMISSION OIL J-23INSPECTION J-24TRANSMISSION — Inspection (Synchronizer ring, Bearing, Reverse idler gear and shaft)J-25TRANSMISSION — Inspection (Springs, Intermediate housing)J-45TRANSMISSION - INSTALLATION Section H