Oil tank and oil cooler
What Oil Should I Use? On the subject of oil, we recommend that engines with roller bearing big ends are run on monograde oils i.e. single viscosity sae 40 in winter and sae 50 in summer. This is because this type of oil can withstand the high loads experienced in a roller bearing big end where all the force is through just one or two rollers. Monograde oils should not be confused with ‘straight oil’, which means oil without additives. The principal additive in modern oils is a detergent that is used to keep deposits in suspension until they reach the oil filter. They will also loosen existing deposits and as there is no effective filter this can be disastrous in an engine that is full of ‘gunge’ accumulated over the years.
Engines with shell bearing big ends can use either a monograde or a modern multi-grade oil. The multi-grade oil will lubricate the shells more quickly when the engine is first started which is when most of the wear takes place and so is more suitable for short journeys; it is also cheaper and more easily obtainable. Monograde oil will leak less; the engine will run cooler and quieter, is available as a straight oil and is more original!
Do not forget to clean out the oil tank when rebuilding the engine.
Key | Part Number | Description | Per | Models |
NI | 82-9574 | Oil cooler and reflector assembly | 1 | 1971 |
NI | PACK-ADV-007 | Oil feed/return pack | A | All |
1 | 82-9687 | Oil cooler cradle | 1 | 1969-70 |
2 | 82-8657 | Mounting rubber | 2 | 1969-70 |
3 | 21-0752 | Shouldered bolt, oil cooler cradle | 2 | 1969-70 |
4 | 82-8667 | Support rubber twinseat | 2 | 1969-70 |
5 | 82-8628 | Oil cooler cover (left hand) | 1 | 1969-70 |
5 | 82-8629 | Oil cooler cover (Right hand) | 1 | 1969-70 |
6 | 02-0525 | 1/4 plain washer | 4 | 1969-70 |
7 | 21-0761 | Heat shield bolt | 4 | 1969-70 |
8 | 19-0987 | Amber reflector Lucas RER 25 | 2 | 1969-70 |
9 | 02-1096 | Washer | 2 | 1969-70 |
10 | 21-0762 | Pozi self tapper | 2 | 1969-70 |
11 | 82-9322 | Oil cooler rubber | 8 | 1969-70 |
12 | 82-8657 | Mounting rubber | 2 | 1969-70 |
13 | 02-0525 | 1/4 plain washer | 2 | 1969-70 |
14 | 14-1301 | 1/4 UNF Nyloc | 2 | 1969-70 |
15 | 82-9315 | Oil cooler assembly | 1 | 1969-72 |
16 | 70-8906 | Oil pipe, original is herringbone | 1 | 1970-71 |
16 | 70-8907 | Flexible pipe | 1 | 1969 |
16 | 71-2483 | Flexible pipe | 1 | 1972 |
16 | 71-3228 | Flexible pipe (oil cooler to rocker box) | 1 | 1972 |
17 | 60-0702 | Oil pipe clip | 2 | 1969-70 |
18 | 14-1301 | 1/4 UNF Nyloc | 3 | 1969-72 |
19 | 27-8560 | Plain washer, 1/4 | 4 | 1970-72 |
19 | 27-8560 | Plain washer, 1/4 | 3 | 1969 |
20 | 40-8436 | Rubber bush | 2 | 1969-72 |
21 | 21-0754 | Bolt – UNF | 1 | 1969-72 |
22 | 82-9664 | Vent pipe | 1 | 1969-72 |
23 | 82-8459 | Rubber (Bottom oil tank mounting) | 1 | 1969-70 |
23 | 83-1585 | Rubber and 83-1952 spacer (which needs shortening) | 1 | 1971-72 |
24 | 02-0923 | Washer | 1 | 1969-72 |
25 | 14-0217 | Bolt 5/16 UNF x 1-1/4 | 1 | 1969-72 |
26 | 83-1387 | Oil filter bolt | 1 | 1969-71 |
26 | 83-3331 | Oil tank filter plug complete | 1 | 1972 |
27 | 68-0610 | ‘O’ ring | 1 | 1969-72 |
28 | 83-1766 | Oil tank with fixed fittings | 1 | 1970 |
28 | 83-3199 | Oil tank complete | 1 | 1971-72 |
28 | 82-8452 | Oil tank with fixed fittings | 1 | 1969 |
29 | 82-9530 | Oil pipe protection spring, for 5/16 feed pipe | 1 | 1969-72 |
29 | 82-9531 | Oil pipe protection spring, for 7/16 return pipe | 1 | 1969-71-72 |
30 | 70-6848 | Oil Feed pipe clip | 2 | 1969-72 |
31 | 70-8904 | Oil pipe | 1 | 1969-72 |
32 | 70-8907 | Flexible pipe | 1 | 1970-71 |
32 | 70-8906 | Oil pipe, original is herringbone | 1 | 1969 |
32 | 71-2484 | Oil pipe | 1 | 1972 |
32 | 71-3229 | Flexible pipe (oil cooler to tank) | 1 | 1972 |
33 | 60-0702 | Oil pipe clip | 2 | 1969-70 |
34 | 82-6874 | Coil spring, metering screw | 1 | 1969-72 |
35 | 82-9435 | Oil screw | 1 | 1969-72 |
36 | 82-8627 | Filler cap | 1 | 1970-72 |
36 | 82-8625 | Oil tank | 1 | 1969 |
37 | 83-1386 | Stud – oil tank front mounting | 1 | 1969-72 |
38 | 82-9918 | Cable tie, aluminium | 4 | 1969-72 |
39 | 82-8657 | Mounting rubber | 4 | 1971-72 |
40 | 76-0101 | Washer | 2 | 1971-72 |
41 | 14-1301 | 1/4 UNF Nyloc | 2 | 1971-72 |
42 | 21-0752 | Shouldered bolt, oil cooler cradle | 2 | 1971-72 |
43 | 83-3128 | Strap – oil cooler mounting | 2 | 1971 |
43 | 83-3858 | Support bracket | 2 | 1972 |
43 | 83-4437 | Strap – oil cooler mounting | 2 | 1972 |
44 | 82-9322 | Oil cooler rubber | 8 | 1971 |
45 | 82-9573 | Square nut, 4BA | 4 | 1971-72 |
46 | 82-9571 | Backing rubber, reflector | 2 | 1971-72 |
47 | 82-9906 | Backplate | 2 | 1971-72 |
48 | 19-1338 | Amber reflector (Front) | 2 | 1971-72 |
49 | 21-1940 | 4BA x 1/2 Pozi pan head screw | 4 | 1971-72 |
50 | 83-1952 | Spacer – will need to be shortend | 1 | 1971-72 |
51 | 82-9157 | Plug for tool tray | 4 | 1972 |
51 | 82-9157 | Plug for tool tray | 6 | 1972 |
52 | 82-8919 | Chain oiler pipe (long) | 1 | 1972 |
53 | 82-9997 | Short chain oiler pipe | 1 | 1972 |
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