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| * 11058-18000WASHER-LOCK FIXING CYLINDER HEAD | * 11058-18000WASHER-LOCK FIXING CYLINDER HEAD | ||
| - | [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=56794 http://datsun1200.com/uploads/newbb/174_50033e73ecea0.jpg] [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=56794 [http://datsun1200.com/uploads/newbb/174_50033e859f7a8.jpg]] [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=56794 [http://datsun1200.com/uploads/newbb/174_50033e8cbbcd9.jpg]] | + | [http://datsun1200.com/modules/newbb/viewtopic.php?topic_id=56794 http://datsun1200.com/uploads/newbb/174_50033e73ecea0.jpg] <img size=140>http://datsun1200.com/uploads/newbb/174_50033e859f7a8.jpg</img> <img size=140>http://datsun1200.com/uploads/newbb/174_50033e8cbbcd9.jpg</img> |
| Newer medium torque bolts (1272-) - 43 ft-lb | Newer medium torque bolts (1272-) - 43 ft-lb | ||
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| [http://datsun1200.com/modules/myalbum/photo.php?lid=24528 http://datsun1200.com/uploads/photos/thumbs/24528.jpg] | [http://datsun1200.com/modules/myalbum/photo.php?lid=24528 http://datsun1200.com/uploads/photos/thumbs/24528.jpg] | ||
| - | <br>A12: Long middle bolt marked 'T' | + | <br>A12: Long middle bolt marked 'T' (low-torque) |
| - | <br>A14: Long middle bolt marked '13' | + | <br>A14: Long middle bolt marked '13' (hi-torque) |
| Hi-torque bolts marked "13" on the head. Remove the valve cover to verify. | Hi-torque bolts marked "13" on the head. Remove the valve cover to verify. | ||
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| 13T | 13T | ||
| - | Lock Washer | + | Lock Washer |
| - | * 11058-H1000 WASHER-LOCK FIXING CYLINDER HEAD -8504 $2.28 | + | * 11058-H1000 WASHER-LOCK FIXING CYLINDER HEAD -8504 $2.28 |
| - | * 11058-21002 Washer Cyl Head 8504- $2.57 | + | * 11058-21002 Washer Cyl Head 8504- $2.57 |
| [http://datsun1200.com/modules/myalbum/photo.php?lid=22287 http://datsun1200.com/uploads/photos/thumbs/22287.jpg] | [http://datsun1200.com/modules/myalbum/photo.php?lid=22287 http://datsun1200.com/uploads/photos/thumbs/22287.jpg] | ||
| [[Category:Engine Mechanical]] | [[Category:Engine Mechanical]] | ||
Revision as of 05:48, 27 April 2013
A-series head bolts are designed to be reused; they are not Torque-To-Yield (TTY) bolts.
Maintenance Schedule
Retighten cylinder head bolts every 24 months or 24000 miles whichever comes first.
600 mile service 24 months/24000 miles
See Changing Head Gasket for torque specifications and procedure.
Overview
BOLT-FIXING CYLINDER HEAD SHORT 11056-18001 36 lb ft 11056-H1000 43 lb ft 11056-H2301 58 lb ft
Bolts are the same for A12/A14/A15, but require the stronger bolts.
Part Numbers
Original Lo-torque bolts (B10 & early B110 -1172) - 36 ft-lb * 11056-18001 BOLT-FIXING CYLINDER HEAD SHORT * 11057-18000 BOLT-FIXING CYLINDER HEAD LONG * 11058-18000WASHER-LOCK FIXING CYLINDER HEAD
Newer medium torque bolts (1272-) - 43 ft-lb * 11056-H1000 BOLT-FIXING CYLINDER HEAD SHORT (9 needed) $2.90 * 11057-H1000 BOLT-FIXING CYLINDER HEAD LONG [Center bolt] $2.51 * 11058-H1000 WASHER-LOCK FIXING CYLINDER HEAD $2.28
A12GX, A12T, A12S, A13, A14, A15, A12A - 58 ft-lbs * 11056-H2301 HEAD BOLT SHORT (9 needed) $3.96 ** NOTE Some newer lo-power (round port) A12S are spec'd for 11056-H1000 ** Also used by Z16/Z18/Z20/Z22 (10 per engine) * 11057-H2301 BOLT-CYLINDER HEAD LONG, TO OIL GALLERY (TO 6/73) $3.88 ** one needed * 11057-H5000 BOLT-CYLINDER HEAD LONG, TO OIL GALLERY (FROM 7/73) $4.03 ** one needed ** Also used by Z24, KA24E, NA20P (10 per engine) * superceeded 11057-H5700
A12: Long middle bolt marked 'T' (low-torque)
A14: Long middle bolt marked '13' (hi-torque)
Hi-torque bolts marked "13" on the head. Remove the valve cover to verify.
head bolts Cro-Mo-V steel 13T
Lock Washer * 11058-H1000 WASHER-LOCK FIXING CYLINDER HEAD -8504 $2.28 * 11058-21002 Washer Cyl Head 8504- $2.57
