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| - | #REDIRECT [[Tune-up]] | + | The most general spark plug for the A12 engine is NGK BP5ES. However, depending on the year, market and usage, Nissan recommended the colder BP6E. For severe use, BP4ES, 5, 6 or 7 can be used. If you are unsure which to use, use BP5ES or BP6ES. |
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| + | For gap, Nissan specifies 0.031 inch. I recommend 0.035 for a smoother idle. The larger gap was used in the early B210 with the same plugs and same ignition system. | ||
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| + | <font face=courier><table valign="top" bordercolor='#000000' border='1' cellpadding='1' cellspacing='1'><tr><td><strong>Spark Plug Type</strong></td><td>1971</td><td>NGK BP6E</td></tr><tr><td></td><td>1972-1976</td><td>NGK BP5ES</td></tr><tr><td></td><td>1977-1978 US models - except 5-speed trans</td><td>NGK BP5ES-11 (standard) | ||
| + | <br>NGK BP6ES-11 or BP7ES-11 (cold) | ||
| + | <br>NGK BP4ES-11 (hot)</td></tr><tr><td></td><td>1977-1978 US models - 5-speed transmission</td><td>NGK BP5EQ-11 (standard) | ||
| + | <br>NGK BP6EQ-11 or BP7EQ-11 (cold) | ||
| + | <br>NGK BP4EQ-11 (hot)</td></tr><tr><td></td><td>1977-1978 Canadian models</td><td>NGK BPR5ES (standard) | ||
| + | <br>NGK BPR6ES (cold) | ||
| + | <br>NGK BPR4ES (hot)</td></tr><tr><td><strong>Spark Plug Gap</strong></td><td>1200</td><td>0.028-0.032 in. (0.7-0.8 mm)</td></tr><tr><td></td><td>1974-1976 B210</td><td>0.031-0.035 in. (0.8-0.9 mm)</td></tr><tr><td></td><td>1977 B210 - US models</td><td>0.039-0.043 in. (1.0-1.1 mm)</td></tr><tr><td></td><td>1977 B210 - Canadian models</td><td>0.031-0.035 in. (0.8-0.9 mm)</td></tr><tr><td></td><td>1978 B210 - non-California 5-speed</td><td>0.043-0.051 in. (1.1-1.3 mm)</td></tr><tr><td></td><td>1978 B210 - other US models</td><td>0.039-0.043 in. (1.0-1.1 mm)</td></tr><tr><td></td><td>1978 B210 - Canadian models</td><td>0.031-0.035 in. (0.8-0.9 mm)</td></tr></table> | ||
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| + | [[Category:Emission Control And Tune-Up]] | ||
Revision as of 05:32, 26 August 2007
The most general spark plug for the A12 engine is NGK BP5ES. However, depending on the year, market and usage, Nissan recommended the colder BP6E. For severe use, BP4ES, 5, 6 or 7 can be used. If you are unsure which to use, use BP5ES or BP6ES.
For gap, Nissan specifies 0.031 inch. I recommend 0.035 for a smoother idle. The larger gap was used in the early B210 with the same plugs and same ignition system.
| Spark Plug Type | 1971 | NGK BP6E |
| 1972-1976 | NGK BP5ES | |
| 1977-1978 US models - except 5-speed trans | NGK BP5ES-11 (standard)
NGK BP4ES-11 (hot) | |
| 1977-1978 US models - 5-speed transmission | NGK BP5EQ-11 (standard)
NGK BP4EQ-11 (hot) | |
| 1977-1978 Canadian models | NGK BPR5ES (standard)
NGK BPR4ES (hot) | |
| Spark Plug Gap | 1200 | 0.028-0.032 in. (0.7-0.8 mm) |
| 1974-1976 B210 | 0.031-0.035 in. (0.8-0.9 mm) | |
| 1977 B210 - US models | 0.039-0.043 in. (1.0-1.1 mm) | |
| 1977 B210 - Canadian models | 0.031-0.035 in. (0.8-0.9 mm) | |
| 1978 B210 - non-California 5-speed | 0.043-0.051 in. (1.1-1.3 mm) | |
| 1978 B210 - other US models | 0.039-0.043 in. (1.0-1.1 mm) | |
| 1978 B210 - Canadian models | 0.031-0.035 in. (0.8-0.9 mm) |