PEUGEOT 504 Series 1970 Workshop Manual page 15

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VACUUM ADVANCE
M 48
ENTRIFUGAL ADVANCE
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VACUUM ADVANCE
M 53
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di5tributor r.p.m.
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500 1000 1250
1~00
ENGINE
TUNING
CHECKING THE DISTRIBUTOR
Dwell angle: 57°
±
2°
(Dwell percentage : 63
%
±
3
%)
which corresponds to a points gap of approximately
0.40 mm (0.016") except in the case of S.E.V.
Marchal " cassette" points sets where the gap is
approximately 0.30 mm (0.012").
NB
- On Ducellier distributors, check the dwell angle :
1 - vacuum unit disconnected (atmospheric pressure)
2 - vacuum unit submitted to
a
depression of 300
mm Hg .
The dwel l angle must be the same in both cases.
If it varies, wrrect by rotat ing t he cam (1).
Advance curves :
504 with carburettor engine
M 48 curve
504 with injection engine
· M 53 curve
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