Mallory Ignition Mallory Distributors 23_25_27 - Manual (Page 5)

Distributor Cap
To test for a secondary breakdown, position the cap so that the inner segments can be
seen. Turn ignition key on and crank the engine. The high voltage entering in the cap
from the coil will arc across any portion that may be defective. If the cap is free from
defects, check the seating of each spark plug wire and clean all surfaces.
Rotor
To test, remove the distributor cap. Remove the coil wire that leads into the cap. Hold this
coil wire one-half inch above the rotor. Crank the engine with the key on; no sparks
should be obtained. If the rotor is defective, the high voltage spark will pinpoint the exact
location of the defect. Replace if necessary.
DP CURVE
All dual point distributors that end in 01 have 24° @ 3000 RPM Except:
2301105
18° @ 2000 RPM 2362901 24° @ 4000 RPM
2301106 14° @ 2500 RPM 2363301 28° @ 3000 RPM
2527501 16° @ 3600 RPM 2364001 28° @ 4600 RPM
2354109 22° @ 2500 RPM 2368301 28° @ 3000 RPM
2557901 20° @ 3000 RPM 2768902 18° @ 3400 RPM
MALLORY TUNE-UP PARTS 23 AND 24 SERIES 25 AND 26 SERIES CONTACT POINT ADJUSTMENT
6 CYLINDER MECH. ADVANCE MECH. ADVANCE VAC. ADVANCE DUAL POINT SINGLE POINT
DISTRIBUTOR CAP 270 209 209 POINT GAP .028" POINT GAP .022"
ROTOR 309 320 310
PERFORMANCE POINTS 25042X 25042X – DWELL (EA.) 29° DWELL 31°
STANDARD POINTS 25042 25042 157
CONDENSER 400 400 401 TL DWELL 41 +_ 2° TL DWELL 34 +_ 2°
VACUUM ADVANCE CHAMBER – – 29332
POINT IGNITION: 23 SERIES
SEMI-EVEN AND ODD-FIRE V6
23 SERIES CONTACT POINT ADJUSTMENT
DISTRIBUTOR CAP 270 POINT GAP .022"
ROTOR 310
PERFORMANCE POINTS 25042X INDIVIDUAL DWELL 30°
STANDARD POINTS 25042
CONDENSER 400 TL DWELL 35 +_ 2°
MALLORY TUNE-UP PARTS 25 AND 26 SERIES 27 SERIES CONTACT POINT ADJUSTMENT
8 CYLINDER MECH. ADVANCE VAC. ADVANCE DUAL POINT SINGLE POINT
DISTRIBUTOR CAP 209 209
ROTOR 309 310 POINT GAP, .022" POINT GAP .018"
HIGH ENERGY DISTRIBUTOR CAP 208* 208**
HIGH ENERGY ROTOR 308 307
PERFORMANCE POINTS 25042X
STANDARD POINTS 25042 157 DWELL (EA.) 26° DWELL 29°
CONDENSER 400 401
DUAL POINT KIT (STD.) 29315 29405
DUAL POINT/CONDENSER KIT (STD.) 29320 29406
TUNE-UP KIT 570 – TL DWELL 33 +_ 2°
VACUUM ADVANCE CHAMBER – 29332
* MUST BE BRACKET KIT PART NO. 29316 ** MUST USE BRACKET KIT PART NO. 29317
MALLORY TUNE-UP PARTS 23 AND 24 SERIES 25 AND 26 SERIES 27 CONTACT POINT ADJUSTMENT
4 CYLINDER MECH. ADVANCE MECH. ADVANCE VAC. ADVANCE DUAL POINT SINGLE POINT
DISTRIBUTOR CAP 271 225 271 POINT GAP .022" POINT GAP .018"
ROTOR 309 320 310
PERFORMANCE POINTS 25042X 25042X – DWELL (EA.) 32° DWELL 34°
STANDARD POINTS 25042 25042 157
CONDENSER 400 400 401 TL DWELL 41 +_ 2° TL DWELL 34 +_ 2°
VACUUM ADVANCE CHAMBER – – 29332
Point Adjustment
Adjust the breaker points as shown in the table below for appropriate model distributor
you have installed.
CAUTION: In models with the triangular hole in the breaker plate,
exercise care in using a screwdriver to adjust the setting, as it is
possible to extend the screwdriver blade far enough to damage the
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