Oil tank & cooler spares & parts for Triumph 1968-75 750cc – X75

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.

Oil tank

Key

Part Number

Description

Per

1

14-1301

1/4 UNF Nyloc 2

2

83-1829

Washer 2

3

82-8657

Mounting rubber 4

4

21-0752

Shouldered bolt, oil cooler cradle 2

5

83-3858

Support bracket 2

6

04-2610

Grommet 4

7

83-3610

Oil cooler 1

8

82-9573

Square nut, 4BA 4

9

82-9571

Backing rubber, reflector 2

10

82-9906

Backplate 2

11

99-1119

Amber reflector 2

12

71-2484

Oil pipe 1

13

21-1940

4BA x 1/2 Pozi pan head screw 4

14

82-9918

Cable tie, aluminium 4

15

83-5019

Oil pipe 1

16

71-3638

Oil pipe 1

17

70-6848

Oil feed pipe clip 2

18

82-9530

Oil pipe protection spring, for 5/16 feed pipe 1

18

82-9531

Oil pipe protection spring, for 7/16 return pipe 1

19

83-1387

Oil filter bolt 1

20

14-0217

Bolt 5/16 UNF x 1-1/4 1

21

70-8088

Washer 1

22

83-1585

Rubber and 83-1952 spacer (which needs shortening) 1

23

83-1952

Spacer – will need to be shortend 1

24

68-0610

‘O’ ring 1

25

83-3630

Rubber pad, small 1

25

83-3631

Rubber pad, large 1

26

83-3495

Oil tank 1

27

21-0754

Bolt 2

28

82-6039

Rubber grommet 2

29

21-0602

Washer 2

30

14-1301

1/4 UNF Nyloc 2

31

70-8905

Oil pipe 1

32

82-8627

Filler cap 1

33

60-0702

Oil pipe clip 6

34

71-2483

Filler cap 1
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