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Begin OCR Text:
P
D E_ _ ff J __ _ O _
GENERAL cooling jackets are machined directly in the bIock.
Engines with type designation B 1g A are four- The oiIways in the block are arranged so that the
cylinder, water-cooled overhead-valve unitg. They O_l filter, whích is of the full-fIow type, is directly
are provided with a single down-draught carburet- attaChed to the right-hand side of the block.
tor, The cylinder head has separate inlet and eK-
haust ports, one for each valve. The crankshaft CyL__DER HEAD AND vALvE_
is carried in five bearings Th _. d h d d
h ' e cy in er ea (23) is attache to the block
T e output of the engìne is 75 h p (SAE) 68 h p b f b _ A__ h b
j ' ' ' ' ' y means o ots. t e com ustion chamberg
(DIN at 45OO r.p.m. and the torque is 14O kgm h. d th h d h _
_ _b f ' are mac ine roug out an ave separate in et
C O1 . t.) at 28OO r.p m (SAE) and 135 kgm d h t f h _
b ' ' ' ' an eK aus ports, one or eac vave.
C98 l _ ft_) at 26OO r.p.m. (DIN). The compression Th _ (4 d g ___ t t. 1) h. h F d
e Vaves an , us ra ion , w ic are itte
_ ratio is 8.5.1, the dispIacement 1 78 litres bore _ th _. d h d d f
g4 14 d k g ' ' in e cy in er ea , are ma e o special steel
_ mm an Stro e O mm. d t d . _ b_ .d ih _
an n)oun e in rep acea e gui es. e vave
Cy _NDE stems are chromed.
' L R BLOCK The cooIing jackets are designed so that the area
_ The CYlinder block (29, IIlustration 1) is made of around the sparking plugs is a_so coo_ed..,i_he
SpeCial alloy cast iron and is cast in a single unit. water is also distributed by means of a pipe and
The cylinder bores which are surrounded by directed towards the warmest parts of the engine.
Fig_ 1_ E_gine vie_ed trom lett
1. Water outlet pipe
2. Oil filler cap
3. Carburettor
4. Air cleaner
5. Rocker casing
_ 6. Engine number
7. Oil dipstick
8. Vacuum hoge
9. Distributor
1O. 5tarter motDr
_ 11. Attachment for distributor
_ 12. Breather pipe
13. Fuel pump
14. Fuel hose
1_. Timing gear casing
16. Water pump
17. IgnitiDn setting mark
18. Fan 18 17 16 15 14 13 12 11 ,,..,,.,,1,,.o,...,
2-1
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