Pre-unit C GroupThe side valve models started with a cast iron head but changed to aluminium alloy in 1949 after ZC10 1377, fining was increased in 1956. The ohv models stuck with cast iron, fining increased in 1951. The C11G and C12 had a different head stud arrangement. For gasket see here | ||||
Part No | Description | Per | Models | Years |
Cylinder head – Used available, please enquire | ||||
Cylinder – Used available, please enquire | ||||
PACK-INTER-002 | Top end overhaul pack | A | All | All |
BC11 | Bottom ends, cranks and crankcases, various conditions | 1 | C11/G | |
01-1796 | Head stud nut | 5 | C11 | 1949-53 |
02-0046 | Cylinder head stud nut | 5 | C11G/12 | 1954-58 |
02-0049 | Carburettor fixing nut | 2 | C | 1946-58 |
02-0049 | Cylinder head stud nut | 2 | C11/11G/12 | 1949-58 |
02-0049 | Head steady nut | 2 | C | 1954-58 |
02-0923 | Head bolt washer | 8 | C10 | 1949-53 |
02-0923 | Head steady to head plain washer | 1 | C10L | 1954-57 |
15-5155 | Carburettor stud plain washer | 2 | C10/11 | 1946-49 |
15-1367 | Carburettor stud | 2 | C | 1949-58 |
24-8328 | Cylinder head timing bolt | 1 | C10/10L | 1949-57 |
27-5156 | Cylinder head bolt | 5/4 | C10/10L | 1940-57 |
27-6260 | Cylinder head bolt, short | 3 | C10/10L | 1949-57 |
24-8784 | Carburettor stud spring washer | 2 | C | 1950-58 |
24-8784 | Head steady to head spring washer | 1 | C | 1954-58 |
24-8784 | Head steady to frame spring washer | 1 | C | 1954-58 |
29-1950 | Cylinder | 1 | C11G/12 | 1954-58 |
29-1954 | Cylinder head | 1 | C11G/12 | 1954-58 |
29-1956 | Head stud | 5 | C11G/12 | 1954-58 |
29-1957 | Head stud | 2 | C11G/12 | 1954-58 |
29-2017 | Head bolt washer | 8 | C10L | 1954-57 |
29-2033 | Head bolt to head steady (extended head) | 1 | C10L | 1954-57 |
29-2259 | Head stud | 5 | C11 | 1939-53 |
29-2335 | Cylinder head | 1 | C10/11 | 1949-55 |
29-2345 | Cylinder barrel, various conditions | 1 | C11 | |
29-2346 | Head stud | 2 | C11 | 1950-53 |
29-2544 | Cylinder | 1 | C10/11 | 1949-55 |
29-2547 | Cylinder | 1 | C10L | |
29-2550 | Tappet cover | 1 | C10/12 | 1940 |
29-2554 | Tappet cover | 1 | C10 | 1946-53 |
36-0382 | Carburettor stud shake proof washer | 2 | C10/11 | 1946-49 |
36-0382 | Cylinder head stud shake proof washer | 2 | C11/11G/12 | 1949-58 |
36-0399 | Head stud spring washer | 5 | C11 | 1949-53 |
65-0042 | Tappet guide | 2 | C10/10L | 1939-57 |
66-1933 | Tappet cover screw | 4 | C10/11 | 1949-57 |
66-4707 | Cylinder head stud shake proof washer | 5 | C11G/12 | 1954-58 |
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