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[Datsun 1200 encyclopedia]

Welch Plugs

(Difference between revisions)

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Category: Engine Mechanical

Revision as of 21:12, 29 December 2007
Ddgonzal (Talk | contribs)

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Revision as of 21:30, 29 December 2007
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Line 2: Line 2:
-Cylinder Head: 1 Welch Plug:+= Cylinder Head=
 +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://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=http://datsun1200.com/modules/myalbum/photos/15003.jpg]
* 00933-14000 PLUG-WELCH (1) head, rear * 00933-14000 PLUG-WELCH (1) head, rear
-Engine Block: 7 Welch Plugs+= Engine Block=
 +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://ddgonzal.members.winisp.net/getThumb.aspx?width=400&uri=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
* 00933-13500 PLUG-WELCH 35 CORE HOLE (3) block, right side * 00933-13500 PLUG-WELCH 35 CORE HOLE (3) block, right side
 +*: [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
 +
 +
 += Transmission =
 +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]
 +* 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
 +*: [http://datsun1200.com/modules/myalbum/photo.php?lid=6901 http://datsun1200.com/modules/myalbum/photos/thumbs/6901.jpg]
 +
[[Category:Engine Mechanical]] [[Category:Engine Mechanical]]

Revision as of 21:30, 29 December 2007

Welch plugs (core plugs) are circular discs that fit into, and seal the casting holes in the Engine block and Cylinder head. 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, their purpose is not to solve freezing problems but rather to seal the holes left by the casting process.


Cylinder Head

One Welch Plug:
15003.jpg

  • 00933-14000 PLUG-WELCH (1) head, rear


Engine Block

Seven Welch Plugs
15004.jpg

  • 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
    6107.jpg 6109.jpg
    35mm brass plugs


Transmission

Three Welch Plugs
1668.jpg

  • 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
    6901.jpg