Got one of the two dry sump pumps cleaned up and rebuilt. This one had come off a grey motor on a boat. No idea who made it. It runs counter-clockwise (i.e. cam drive, not crank drive).

- Dry sump pump 3.jpg (903.07 KiB) Viewed 126 times

- Dry sump pump 2.jpg (801.54 KiB) Viewed 126 times

- Dry sump pump 1.jpg (882.3 KiB) Viewed 126 times

- Dry sump pump assembly.jpg (702.41 KiB) Viewed 126 times
1. Pressure casing
2. Relief valve casing
3. Suction casing
4. Casing end cover
5. Drive shaft
6. Casing bolts – four off ¼-20UNCx2.75”
7. Tachometer cable drive
8. Tachometer cable jam nut – ½-26BSB
9. Tachometer cable drive mounting bolts – two off #10-24UNCx½”
10. Suction idler gear
11. Suction drive gear
12. Suction drive gear woodruff key – ANSI #3 full radius
13. Pressure idler gear
14. Pressure drive gear
15. Pressure drive gear woodruff key – ANSI #3 full radius
16. Pump discharge to oil tank nipple - 3/8-18NPT to -10AN
17. Pump suction from sump nipple - 3/8-18NPT to -10AN
18. Pump discharge to engine nipple - 3/8-18NPT to -10AN
19. Pump suction from oil tank nipple - 3/8-18NPT to -10AN
20. Relief valve passage drilling plugs – two off 1/8-27NPT
21. Relief valve passage drilling plugs safety wire
22. Relief valve assembly cap - 9/16-18UNF
23. Relief valve assembly fibre washer - 9/16”IDx- 7/8”OD
24. Pump pressure tuning spacer – 9mm diameter x 0.140” thick, approx. 50psi/inch of thickness
25. Relief valve spring mount
26. Relief valve spring – 7.8lb/inch
27. Relief valve piston
28. Relief valve piston stop
29. Pump discharge pressure gauge nipple - 1/8-27NPT to -3AN.
Still have to finish overhauling the second one. Good rainy day job. Not sure which one I will use yet.
Cheers,
Harv
327 Chev EK wagon, original EK ute for Number 1 Daughter, an FB sedan meth monster project and a BB/MD grey motored FED.