British Leyland Triumph Toledo, Repair Manual

Page: 61 / 339

ENGINE
Reassembling
12. Lap-in all valves, using coarse followed by fine
carborundum paste, until a gas-tight seal is obtained.
Remove all traces of paste and maintain identifica­
tion of each valve.
13. Lubricate the valve stems with clean engine oil and
assemble to the cylinder head. Ensure that the valve
spring retaining collars or split collars are correctly
positioned.
14. Refit the cylinder head, 12.29.10, fitting a new
cylinder head gasket.
DATA
f DG 25000
Up to Engine No. < DM 5000
(JDS 5000
From Engine No
fDG 25001
J
DM 5001
j^DS 5001
Valves Inlet Exhaust Inlet Exhaust
Head diameter (1500 c.c.) in 1-429 to 1-433
1-230 to 1-234 1-429 to 1-433 1-168 to 1-172
mm 36-31 to 36-38 31-24 to 31-34 ■. 36-31 to 36-38 29-66 to 29-76
Head diameter (1300 c.c.) in
1-304 to 1-308 1-168 to 1-172
1-437 to 1-443
1-168 to 1-172
mm 33-12 to 33-22 29-66 to 29-76
36-49 to 36-65 29-66 to 29-76
Stem diameter in 0-3107 to 0-3112 0-3100 to 0-3105 0-3107 to 0-3112 0-3100 to 0-3105
mm
8-05 to 8-12 7-874 to 7-887 8-05 to 8-12 7-874 to 7-887
Seat face angle—total o
o
so
o
o
so
o
o
so O
o
Valve stem to guide clearance ..
*.
in 0-0008 to 0-0023 0-0015 to 0-0030 0-0008 to 0-0023 0-0015 to 0-0030
mm
0-02 to 0-06 0-03 to 0-07 0-02 to 0-06 0-03 to 0-07
Valve Guides
Length .. .. . . .
Bore
Outside diameter
Valve guide height above cylinder head
2-0625 in
0-312 to 0-313 in
0-501 to 0-502 in
0-749 to 0-751 in 52-387 mm
7-92 to 7-95 mm
12-72 to 12-75 mm
19-025 to 19-075 mm
Type A Type B
Type C
Valve Springs
internal diameter ..
Working coils
Load at length
Free length
Solid length
Rate
0- 795 in (20-193 mm)
3±
1- 36 in- 2 7 to 30 1b
34-54 mm —12-25 to 13-61 kg
1-61 in (40-9 mm)
0-93 in (23-6 mm)
150 lb/in (2679 kg/m)
0- 795 in (20-193 mm)
34
-
1- 074 in -1 0 5 to 115 lb
27-28 mm—47-3 to 52-2 kg
1-59 in (40-4 mm)
0-96 in (24-4 mm)
235 lb in (4196 kg m)
0-795 in (20-193 mm)
H
0-989 i n - 123 to 133 lb
25-1 m m —55-8 to 60-3 kg
1*52 in (38-6 mm)
0-875 in (22-2 mm)
240 lb in (4286 kg m)
Note: Type A fitted to 1300 c.c. engines up to engine number DG 25001 with the exception of engines within the following
three groups: DG 10731 to 10750, DG 10786 to 10909, DG 11116 to 11622.
Type B fitted to 1300 c.c. engines of the above three groups and 1500 c.c. engines up to DM 5001 and DS 5001.
Type C fitted to 1300 c.c. engines from DG 25001 and 1500 c.c. engines from DM 5001 and DS 5001.
Valve Seat Inserts
Bore into cylinder head ^ in.
Dimension ‘A’
f ■ -
mm
Bore into cylinder head \ in
Dimension ‘B' (Exhaust)
J
. . mm
Bore into cylinder head "1 in
Dimension ‘C (Inlet)
j
mm
Note: Machine fitted inserts'to 89 total inclusive angle.
**Valve seat to be concentric with guide bore to within 0-002 in (0*0508 mm) Total Indicator Reading.**
f
DG25000
Up to Engine No.<{ DM 5000
(^DS 5000
f DG25001
From Engine No.-^ DM 5001
[D S 5001
1300 c.c. 1500 c.c. 1300 1500 c.c.
0-248 to 0-250
0-250 to 0-255 0-250 to 0-255
6-30 to 6-35: 6*35 to 6-45
6*30 to 6*35
1-249 to 1-25Q
1*347 to 1-348
**1-249 to 1-250**
31-72 to 31-75,
34*21 to 34*24
31-72 to 31*75
1-437 to 1-438 1*566 to 1-567 1*5625 to 1*5635
36-50 to 36-53 39*77 to 39-80 39*68 to 39*71 **
12.29.18 Sheet 2
Triumph Toledo Manual. Part No. 545168. Issue 3