Chevrolet CHEVY VAN G10 SERIES Service Manual page 232

Cap
1.
R o to r
2.
3. D u s t S h ie ld
C o n ta c t P o in t A tta c h in g
4.
S c re w
C o n ta c t P o in t A s s e m b ly
5.
6. B re a k e r P la te A tta c h in g
S crew s
C o n d e n s e r A tta c h in g S c re w
7.
C o n d e n s e r
8.
B re a k e r P la te A s s e m b ly
9.
C a m L u b r ic a to r
10.
V a c u u m A d v a n c e L in k a g e
11.
Boot
Fig. 7 i—L-6 D istributor Exploded V iew
V-8 Engines
8
Refer to Figure i.
1. Rem ove the ro to r.
2. Rem ove b o th w eight springs and advance weights.
3. Remove roll pin retaining driven gear to the d istributor
shaft, slide th e gear and spacers from th e shaft.
4. Before sliding the distributor shaft from th e housing,
check for and remove any burrs on th e shaft. This will
prevent damage to the seals and bushing still positioned
in th e housing.
5. Slide the distributor m ainshaft and cam-weight base
assembly from th e housing.
6
. Remove vacuum advance m echanism retaining screws,
remove th e vacuum advance assembly.
12. V a c u u m C o n tr o l A s se m b ly
13. H o u s in g
14. W e ig h t C o v e r A tta c h in g
S c re w
W e ig h t C o v e r
15.
W e ig h t S p rin g s
16.
17. A d v a n c e W e ig h ts
18. C am A s s e m b ly
19. M a in s h a ft A s s e m b ly
D riv e G ear
20.
R o ll P in
21.
7. Remove th e spring retainer, remove th e breaker plate
assembly from the d istrib u to r housing. Remove the
contact p o in t and condenser from th e breaker plate.
Remove th e felt washer and plastic seal located beneath
th e breaker plate.
Cleaning and Inspection
1. Wash all parts in cleaning except cap, ro to r, condenser,
breaker plate assembly and vacuum co n tro l unit. Degreas­
ing com pounds may damage insulation o f these parts or
saturate th e lubricating felt in the case o f the breaker
plate assembly.
2. Inspect th e breaker plate assembly for damage or wear
and replace if necessary.
3. Inspect th e shaft for wear and check its fit in the
bushings in the d istrib u to r b ody. If th e shaft or bushings
are w orn, th e parts should be replaced.
4. M ount th e shaft in "V " blocks and check the shaft
alignm ent w ith a dial gauge. The run-out should not
002
exceed . " .
5. Inspect the advance weights for wear or burrs and free fit
on their pivot pins.
6
. Inspect the cam for wear or roughness. Then check its fit
on the end o f the shaft. It should be absolutely free
w ith o u t any roughness.
7. Inspect th e co n d itio n o f the distributor points. D irty
points should be cleaned and badly p itted points should
be replaced. (See D istributor C ontact Points.)
8
. Test the condenser for series resistance, m icrofarad
capacity (.18 to .23) and leakage or breakdow n, follow ­
ing the instructions given by th e m anufacturer o f th e test
equipm ent used.
9. Inspect the d istrib u to r cap and spark plug wires for
damage an d replace if necessary.
Assembly
Six Cylinder Engine
Refer to Figure 7i, for E xploded View o f D istributor.
1. Replace cam assem bly to m ainshaft.
N O T E : Lubricate top end o f shaft w ith Delco cam
and ball bearing grease or equivalent prior to
replacing.
2. Install governor weights on their pivot pins, replace
weight springs. Install weight cover and stop plate.
3. L ubricate m ainshaft and install it in d istributor housing.
4. Install d istrib u to r driven gear to m ainshaft and insert
retaining roll pin. Check to see th a t shaft turns freely.
5. Install breaker plate assembly in the d istrib u to r b o d y and
attach retaining screws.
6
. A ttach condenser and contact p o in t set in proper loca­
tio n w ith appropriate attaching screws.
N O T E : Contact point
matching hole in breaker plate. Connect primary
and condenser leads to contact set quick-disconnect
term inal.
ENG INE E LEC TR IC A L 6Y-21
set pilot must engage
C H E V Y V A N SH O P M A N U A L