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IH: Oiling & Lubrication - Sub-03F
57-76 Oil Pump - Individual Parts and Pics
1957-E1962
- All these use 16t gear sets and style 1 plumbing 1)
- Gear Dia. (.970“ OD)
- Feed gears (.185” thick)
- The production changes made during its run: 2)
- 57-e58 baseline pump that all others came from.
No oil seal.
Uses a snap ring and a full profile woodruff key at scavenge gear. - L58-59 same as above but now has body machined for a oil seal.
- 60-e62 same as L58-59 but the retaining ring at the scavenge is replaced by half moon retainers.
The scavenge drive gear is counter-bored for these half moons and the woodruff key is shortened so it won't interfere with the half moons.
L1962-1971
- All these used 14t gears & scavenge sets got taller than the previous 16's were. 3)
- Gear Dia. (.990“ OD)
- All use half moons and shortened key on scavenge drive.
- Bodies made till '66 are for style 1 plumbing.
- In '67, the body gets tapped for the external feed fitting for use on 67-69 XLH. This is when style2 plumbing started.
- Bodies tapped for style2 were still used on the last 3 yrs (67-69 xlch) of style1 cases.
- A plug is put in this new hole if body got used on a style1 case set.
1972-1976
- These go back to 16t gears and a snap ring with long key 4)
- Gear Dia. (1.115” OD)
- Feed gears (.185“ thick)
- Feed gears are the same as 57-e62 but the scavenge set is now wider again (wider than any of the previous sets).
- Breather gear gets enlarged slots in it. 5)
- Breather timing:
- Body and breather housing get an extra hole (2 holes now) drilled in them for additional return capacity, cases also get extra matching hole. 8)
- Solid feed gear drive pin gets replaced by the hated roll pin. 9)
- Dowels between body and breather housing are now history. 10)
- Each complete pump breaks down into these components: 11)
- Breather or sleeve gear-has the 2 slots in it
- Breather gear housing- cast iron part that breather rides in
- Feed gear set and drive pin (the skinnier of the 2 gear sets)
- Pump body
- Scavenge gear set and drive key and retaining clip.
Check Spring
There were 3 springs used from 52-76. 12)
(52-56 also used a second valve- pressure relief).
- 52-E57: (26363-36)
- L57-E72: (26364-57)
- L72-76 (26364-72)
This is suppose to be a NOS 67 Pump Spring.
L = 1.215”
Wire Gauge = .024“
67 oil pump spring. 17) |
Breather Gears
(Missing are the -'56 breather gear and long full profile woodruff scavenge drive key and snap-ring). 21)
Breather Gears 22) | Some of amf's signature quality control. These are 3 - 72 breather gears.23) | A closer view24) |
The 2 different breather housings25) | Feed Gear Sets26) | More often than not the solid pin was a slipfit in cross hole.27) |
On to the bodies. The 2nd text is “26217-56a L58-e62”28) | |
The 4 different scavenge gear sets. Lined up from early in foreground to later in background. This is to show the height progression.29) | Top view of all 4 sets.30) | A closer view of the height changes.31) |
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Dr Dick of the XLFORUM http://xlforum.net/forums/showpost.php?p=3272806&postcount=204
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Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1661356&page=2
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The Doctor71 of the XLFORUM of the XLFORUM http://xlforum.net/forums/showthread.php?t=1661356
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photo by Monte03 of the XLFORUM http://xlforum.net/forums/showthread.php?t=823881&page=3
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photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1661356&page=2
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photo by fergerburger of the XLFORUM http://xlforum.net/forums/showthread.php?t=1661356
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photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1661356