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| Revision as of 23:35, 21 June 2016 ddgonzal (Talk | contribs) (Welch Plug moved to Welch Plugs) <- Previous diff |
Current revision ddgonzal (Talk | contribs) (->Terminology) |
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| = Terminology = | = Terminology = | ||
| - | The Welch plug was originally designed [http://www.britishcarweek.org/welch_plug.html circa 1910 by the Welch brothers] at the Welch Motor Car Company of Pontiac, Michigan. You may hear them incorrectly called "welsh plugs". See [http://www.google.com/patents/US1058210 Patent No 1058210] | + | The Welch plug was originally designed {{web|www.britishcarweek.org/welch_plug.html|circa 1910 by the Welch brothers}} at the Welch Motor Car Company of Pontiac, Michigan. You may hear them called "welsh plugs". See {{web|www.google.com/patents/US1058210|Patent No 1058210}}. |
| - | 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 necessarily 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". | + | 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 necessarily to solve freezing problems but rather to seal the holes left by the casting or machining process (core plugs). Those that are designed for freezing safety may be called "expansion plugs" or '''frost plugs'''. |
| = Set = | = Set = | ||
| Sets are for the engine block only (does not include the Cylinder Head plugs). | Sets are for the engine block only (does not include the Cylinder Head plugs). | ||
| - | PLUG-WELCH | + | {{search|Nissan+A14+core+plugs|Nissan A14 core plugs}} |
| - | 44Ø CAM bore, rear | + | |
| - | 50Ø CORE block, rear | + | |
| - | 35Ø CORE (3) block, side | + | |
| - | DORMAN 557-031 A12 & A13 engines | + | PLUG-WELCH A10/A12/A13/A12A/A14/A15 (see [[Block_%26_Pan_Part_Numbers]]) |
| - | <br>[http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/A12ampA13ENGINEEXPANSIONPLUGKIT.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/A12ampA13ENGINEEXPANSIONPLUGKIT.jpg] | + | {{SearchPart|11019-32200}} 44 Ø CAM bore, rear |
| + | {{SearchPart|00933-15000}} 50 Ø CORE block, rear | ||
| + | {{SearchPart|00933-13500}} 35 Ø CORE block, side (3) | ||
| + | * NOTE: [[Block_Comparison#M2_Block|M2 Block]] reportedly uses 25mm plugs | ||
| - | MAFCO 437 120Y 1969-1972 (http://www.mafcobell.co.uk) | + | Some sets include: |
| - | <br>[http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/Mafco437enginecoreplugset1969-1972A12.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_Mafco437enginecoreplugset1969-1972A12.jpg] | + | 11021-13200 PLUG-taper (12.7ø) (fixing [cam] oil gallery) (2) |
| - | MAFCO 438 1972-1980 | + | Pioneer PE-130 (PE-130B contains four brass plugs for the water-contact plugs + one steel) |
| - | <br>[http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/Mafco438enginecoreplugset1972-1980A12.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_Mafco438enginecoreplugset1972-1980A12.jpg] | + | <br>{{Album|26530}} |
| + | <br>Pioneer includes front & rear oil gallery blind plugs | ||
| - | MAFCO 441 Sunny 140Y 1980-1982 (L14) | + | REPCO 058-4030 Expansion Plugs for A12, A13, A14 |
| - | <br>[http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/Mafco441enginecoreplugsetB3101980-1982.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_Mafco441enginecoreplugsetB3101980-1982.jpg] | + | <br>{{Album|28765}} |
| - | above may be for L14 engine??? | + | DORMAN 557-031 A12 & A13 engines |
| - | PB210 (140Y in South Africa) - L14 engine | + | <br>{{Album|28767|replaced=Photo\A12ampA13ENGINEEXPANSIONPLUGKIT.jpg}} |
| - | 11021-21000 PLUG-welch [6 total, 40 mm] | + | |
| - | * (3) right side | + | MAFCO 437 120Y 1969-1972 (http://www.mafcobell.co.uk). MAFCO have got the name and years wrong, and one plug appears to be the wrong size |
| - | * (2) left side | + | <br>{{Photo|Mafco437enginecoreplugset1969-1972A12.jpg}} |
| - | * (1) rear | + | |
| - | cylinder head | + | |
| - | * 00933-13500 PLUG-welch, 35 -7410 | + | |
| - | * 00322-13000 PLUG-welch, 30 -7410 | + | |
| - | * 11048-73403 PLUG-blind (2) 7411 | + | |
| = Cylinder Head= | = Cylinder Head= | ||
| One Welch Plug: | One Welch Plug: | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15003 http://datsun1200.com/uploads/photos/15003.jpg] | + | <br>{{Album|15003}} |
| - | * 00933-14000 PLUG-WELCH (1) head, rear [reportedly 40 mm] | + | * 00933-14000 PLUG-WELCH (1) head, rear [40 mm] |
| = Engine Block= | = Engine Block= | ||
| == B110 == | == B110 == | ||
| - | Five Welch Plugs | + | Five Welch Plugs (including three on side of block) |
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=15004 http://datsun1200.com/uploads/photos/15004.jpg] | + | <br>{{Album|15004}} |
| - | [http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/n59975533yoshi_senna-img600x450-1211090038fvol0413765.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_n59975533yoshi_senna-img600x450-1211090038fvol0413765.jpg] | + | Two on REAR: Large core plug + smaller cam bore plug |
| - | * 11019-32200 PLUG-WELCH 44Ø CAM BEARING (1) block, rear (44.425 Ø) [1-3/4 inch] | + | <br>{{Album|28768|was=Photo\n59975533yoshi_senna-img600x450-1211090038fvol0413765.jpg}} |
| - | * 00933-15000 PLUG-WELCH 50Ø CORE HOLE (1) block, rear prev. 01648-00084 | + | * 11019-32200 PLUG-WELCH 44 Ø CAM BEARING (1) block, rear (44.425 Ø) [1-3/4 inch] |
| + | * 00933-15000 PLUG-WELCH 50 Ø CORE HOLE (1) block, rear prev. 01648-00084 | ||
| - | * 00933-13500 PLUG-WELCH 35Ø CORE HOLE (3) block, right side | + | Three 35mm core-plugs on manifold side |
| - | [http://datsun1200.com/modules/myalbum/photo.php?lid=6107 http://datsun1200.com/uploads/thumbs/6107.jpg] [http://datsun1200.com/modules/myalbum/photo.php?lid=6109 http://datsun1200.com/uploads/thumbs/6109.jpg] | + | <br>{{Album|6107}} {{Album|6109}} |
| - | * 35mm brass core-plugs | + | * 00933-13500 PLUG-WELCH 35 Ø CORE HOLE (3) block, right side |
| == B120 == | == B120 == | ||
| Line 73: | Line 70: | ||
| = Transmission = | = Transmission = | ||
| Three Welch Plugs | Three Welch Plugs | ||
| - | <br>[http://datsun1200.com/modules/myalbum/photo.php?lid=1668 http://datsun1200.com/uploads/photos/1668.jpg] | + | <br>{{Album|1668}} |
| * 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft | * 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft | ||
| + | *: 14mm diameter, all 56-series and 60-series | ||
| * 32102-18000 PLUG-WELCH TRANSMISSION CASE (1) inside bell, below 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/uploads/thumbs/6901.jpg] | + | The two small plugs can be seen in this photo, to the left of the spring: |
| + | <br>{{Photo|TM-04_TM9.jpg|Datsun%201200/wiki/trans}} | ||
| = Removal and installation = | = Removal and installation = | ||
| Line 84: | Line 83: | ||
| 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. | ||
| - | [[Category:Engine Mechanical]][[Category:Cooling System]][[Category:Transmission]] | + | = Others = |
| + | MAFCO 438 1972-1980 | ||
| + | <br>{{Photo|Mafco438enginecoreplugset1972-1980A12.jpg}} | ||
| + | |||
| + | MAFCO 441 Sunny [[140Y]] 1980-1982 | ||
| + | <br>{{Photo|Mafco441enginecoreplugsetB3101980-1982.jpg}} | ||
| + | |||
| + | above looks to be for L14 engine | ||
| + | [[PB210]] (140Y in South Africa) - L14 engine | ||
| + | {{SearchPart|11021-21000}} PLUG-welch [6 total, 40 mm] | ||
| + | * (3) right side | ||
| + | * (2) left side | ||
| + | * (1) rear | ||
| + | cylinder head | ||
| + | * {{SearchPart|00933-13500}} PLUG-welch, 35 -7410 | ||
| + | * {{SearchPart|00322-13000}} PLUG-welch, 30 -7410 | ||
| + | * {{SearchPart|11048-73403}} PLUG-blind (2) 7411 | ||
| + | |||
| + | [[Category:Engine Mechanical]][[Category:Cooling System]][[Category:Transmission]]{{End}} | ||
Current revision
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.
Contents |
[edit]
Terminology
The Welch plug was originally designed circa 1910 by the Welch brothers☁ at the Welch Motor Car Company of Pontiac, Michigan. You may hear them called "welsh plugs". See Patent No 1058210☁.
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 necessarily to solve freezing problems but rather to seal the holes left by the casting or machining process (core plugs). Those that are designed for freezing safety may be called "expansion plugs" or frost plugs.
[edit]
Set
Sets are for the engine block only (does not include the Cylinder Head plugs).
Nissan A14 core plugsᴳ
PLUG-WELCH A10/A12/A13/A12A/A14/A15 (see Block_&_Pan_Part_Numbers) 11019-32200ᴳ 44 Ø CAM bore, rear 00933-15000ᴳ 50 Ø CORE block, rear 00933-13500ᴳ 35 Ø CORE block, side (3) * NOTE: M2 Block reportedly uses 25mm plugs
Some sets include: 11021-13200 PLUG-taper (12.7ø) (fixing [cam] oil gallery) (2)
Pioneer PE-130 (PE-130B contains four brass plugs for the water-contact plugs + one steel)
Pioneer includes front & rear oil gallery blind plugs
REPCO 058-4030 Expansion Plugs for A12, A13, A14
DORMAN 557-031 A12 & A13 engines
MAFCO 437 120Y 1969-1972 (http://www.mafcobell.co.uk). MAFCO have got the name and years wrong, and one plug appears to be the wrong size
[edit]
Cylinder Head
One Welch Plug:
- 00933-14000 PLUG-WELCH (1) head, rear [40 mm]
[edit]
Engine Block
[edit]
B110
Five Welch Plugs (including three on side of block)
Two on REAR: Large core plug + smaller cam bore plug
* 11019-32200 PLUG-WELCH 44 Ø CAM BEARING (1) block, rear (44.425 Ø) [1-3/4 inch] * 00933-15000 PLUG-WELCH 50 Ø CORE HOLE (1) block, rear prev. 01648-00084
Three 35mm core-plugs on manifold side
* 00933-13500 PLUG-WELCH 35 Ø CORE HOLE (3) block, right side
[edit]
B120
35 mm Expansion Plug 00933-13500/11021-E3000/00933-1351A Nominal Dia.: 35.21mm Steel Height: 0.380"
プラグ (35mm - 3 required) 7510-8506 00933-13500 8506-8706 11021-E3000 [11021E] 8706- 00933-1351A
Cam bore plug 11019-32200 44 mm -8506 01648-00191 8506-
[edit]
Transmission
Three Welch Plugs
- 00933-11400 PLUG-WELCH TRANSMISSION CASE (2) inside bell, northwest of mainshaft
- 14mm diameter, all 56-series and 60-series
- 32102-18000 PLUG-WELCH TRANSMISSION CASE (1) inside bell, below mainshaft
The two small plugs can be seen in this photo, to the left of the spring:
[edit]
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.
[edit]
Others
MAFCO 438 1972-1980
MAFCO 441 Sunny 140Y 1980-1982
above looks to be for L14 engine PB210 (140Y in South Africa) - L14 engine 11021-21000ᴳ PLUG-welch [6 total, 40 mm] * (3) right side * (2) left side * (1) rear cylinder head * 00933-13500ᴳ PLUG-welch, 35 -7410 * 00322-13000ᴳ PLUG-welch, 30 -7410 * 11048-73403ᴳ PLUG-blind (2) 7411
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