Engine 3.0L Specifications; Engine 3.0L Troubleshooting - Mazda B-Series 1997 Workshop Manual

OUTL.INE, TROUBLESHOOTING GUIDE
B2
OUTLINE
Note
When the battery has been disconnected and reconnected, some abnormal1 driving symptoms
may occur while the powertrain control module relearns its adaptive strategy. The vehicle may
need to be driven 16 km (10 miles) or more to relearn the strategy.
4BUOB2-004
SPECIFICATIONS
TROUBLESHOOTING GUIDE
Problem Possible Cause
7
Action
I
Page
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Item
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Engine
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J Y pe
G i n d e r arrangement and number
Valve system
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cm3, (CU in}
Displacement
&e and stroke
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~
mm {in)
3.0L
Gasoline, 4-cycle
60"-V configuration, 6 c:ylinders
OHV chain driven, 12 valve
2968 { I 82)
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89.0 x 80.0 i3.50 x :3.14)
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Difficult starting
Malfunction of engine-related components
Burnt valve Replace 62-37
Worn piston, piston rings, or cylinder Replace or repair 62-42,43
Replace 82-8
i
Malfunction d fuel system
Refer to Section FT
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Malfunction of ignition system
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! Refer to Section G
Poor idling
Malfunction of engine-related components
Poor valve-to-valve seat contact Replace or repair 62-38
Damaged cylinder head gasket Replace 82-8
Damaged push rod(s) Replace 62-1 0
Damaged tappet Replace 62-1 6
. - p - - p - - - - p P - -
Malfunction of fuel system Refer to Section FT -
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Malfunction of ignition system Refer to Section G
!
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Excessive oil Oil working up
consumption Worn piston ring groove or sticking piston ring Replace 82-43
Worn piston or cylinder Replace or repair 62-42,43
Oil working down
Worn valve seal Replace B2-37
Compression pressure
/
Worn valve stem or guide
Replace
Worn piston rings
1
Replace
Plugged PCV system
Refer to Section FT
Oil leakage
Lowest reading within 75% of highest cylinder readingo
62-37
B2-42
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~
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mm {in) 0: Maintenance free
Valve clearance
0: Maintenance free
Ignition timing (Initial timing)
8-1 2" (1 0
+
2")
Firing order 1-4-2-5-3--6
@ Refer to Section TD
MB1161-D 5BUOB2-003
ME1 162-01