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| [[Category:Engine Mechanical]][[Category:Cooling System]][[Category:Transmission]] | [[Category:Engine Mechanical]][[Category:Cooling System]][[Category:Transmission]] | ||
| - | '''Welch plugs''' (core plugs) are circular discs that fit into, and seal the casting and machining holes in the [[Engine block]], [[Cylinder head]] and [[Transmission]]. You may hear them called "welsh plugs". They are often called "freeze plugs" because if the engine coolant freezes they'll be pushed out of the casting. However, the purpose is not necessaryily to solve freezing problems but rather to seal the holes left by the casting or machining process. Those that are designed for freezing safety are called "expansion plugs". | + | '''Welch plugs''' (core plugs) are circular discs that fit into, and seal the casting and machining holes in the [[Engine block]], [[Cylinder Head]] and [[Transmission]]. You may hear them called "welsh plugs". They are often called "freeze plugs" because if the engine coolant freezes they'll be pushed out of the casting. However, the purpose is not necessaryily to solve freezing problems but rather to seal the holes left by the casting or machining process. Those that are designed for freezing safety are called "expansion plugs". |
| - | + | ||
| = Cylinder Head= | = Cylinder Head= | ||
| One Welch Plug: | One Welch Plug: | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15003 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/modules/myalbum/photos/15003.jpg] | + | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15003 http://datsun1200.com/modules/myalbum/photos/15003.jpg] |
| * 00933-14000 PLUG-WELCH (1) head, rear | * 00933-14000 PLUG-WELCH (1) head, rear | ||
| - | |||
| = Engine Block= | = Engine Block= | ||
| Seven Welch Plugs | Seven Welch Plugs | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15004 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/modules/myalbum/photos/15004.jpg] | + | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15004 http://datsun1200.com/modules/myalbum/photos/15004.jpg] |
| * 11019-32200 PLUG-WELCH 44 CAM BEARING (1) block, rear | * 11019-32200 PLUG-WELCH 44 CAM BEARING (1) block, rear | ||
| * 00933-15000 PLUG-WELCH 50 CORE HOLE (3) block, rear prev. 01648-00084 | * 00933-15000 PLUG-WELCH 50 CORE HOLE (3) block, rear prev. 01648-00084 | ||
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| *: [http://datsun1200.com/modules/myalbum/photo.php?lid=6107 http://datsun1200.com/modules/myalbum/photos/thumbs/6107.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=6109 http://datsun1200.com/modules/myalbum/photos/thumbs/6109.jpg] | *: [http://datsun1200.com/modules/myalbum/photo.php?lid=6107 http://datsun1200.com/modules/myalbum/photos/thumbs/6107.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=6109 http://datsun1200.com/modules/myalbum/photos/thumbs/6109.jpg] | ||
| *: 35mm brass plugs | *: 35mm brass plugs | ||
| - | |||
| = Transmission = | = Transmission = | ||
| Three Welch Plugs | Three Welch Plugs | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=1668 http://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/modules/myalbum/photos/1668.jpg] | + | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=1668 http://datsun1200.com/modules/myalbum/photos/1668.jpg] |
| * 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft | * 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft | ||
| * 32102-18000 PLUG-WELCH TRANSMISSION CASE (1) inside bell, below mainshaft | * 32102-18000 PLUG-WELCH TRANSMISSION CASE (1) inside bell, below mainshaft | ||
| Line 28: | Line 25: | ||
| = Removal and installation = | = Removal and installation = | ||
| - | |||
| Removal: tap one edge with a punch or chisel, then grab it with vice-grips and wiggle it out. | Removal: tap one edge with a punch or chisel, then grab it with vice-grips and wiggle it out. | ||
| To install, fit squarely into bore, and tap gently and evenly into place. No sealer is used. | To install, fit squarely into bore, and tap gently and evenly into place. No sealer is used. | ||
Revision as of 04:52, 6 November 2012
Welch plugs (core plugs) are circular discs that fit into, and seal the casting and machining holes in the Engine block, Cylinder Head and Transmission. You may hear them called "welsh plugs". They are often called "freeze plugs" because if the engine coolant freezes they'll be pushed out of the casting. However, the purpose is not necessaryily to solve freezing problems but rather to seal the holes left by the casting or machining process. Those that are designed for freezing safety are called "expansion plugs".
Contents |
Cylinder Head
One Welch Plug:
- 00933-14000 PLUG-WELCH (1) head, rear
Engine Block
Seven Welch Plugs
- 11019-32200 PLUG-WELCH 44 CAM BEARING (1) block, rear
- 00933-15000 PLUG-WELCH 50 CORE HOLE (3) block, rear prev. 01648-00084
- 00933-13500 PLUG-WELCH 35 CORE HOLE (3) block, right side
-
- 35mm brass plugs
-
Transmission
Three Welch Plugs
- 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft
- 32102-18000 PLUG-WELCH TRANSMISSION CASE (1) inside bell, below mainshaft
- Can be seen in photo, just below throwout bearing
-
Removal and installation
Removal: tap one edge with a punch or chisel, then grab it with vice-grips and wiggle it out.
To install, fit squarely into bore, and tap gently and evenly into place. No sealer is used.