Ford 1963 Thunderbird - Page 55

ENGINES 2-5
VALVE MECHANISM-
Continued
VALVE SPRING OUT OF
SQUARE - Maximum
All Engines ...... ....... .... 0.072
VALVE SPRING FREE LENGTH
- Appro xi mat e
144 and 170 ................. 2.00
223 ....... .. ............... 2.33
22 1 and 260 ....... ... ....... 2.15
352 ...... ... ............. .. 2.26
390 Police Interceptor V·8 ...... 2.06
390 V -8 '4·V, ............... 2. 15
390 V -8 ' 6-V : and 406 V·8 . .... 2 .06
VALVE SPRING PRESSURE -
Pounds at Specified l ength
Valve Clos ed
144 and 170 .... 47.75-56 . 25 al 1.585
Wear limil 43 al 1.585
223 ..... . ......... 97 · 105 al 1.780
Wear limit 88 at 1.780
221 and 260 ......... 57·63 al 1.770
W ear li mit 52 at I. 770
352 ............... 94 - 104 at 1.82 0
Wear Limit 85 at 1.820
390 V-8 '4-V' ....... 74 - 84 at 1. 820
Wear limit 67 al 1.820
390 Police In le r ceptor V ·8.
390 V -8 ! 6-V ) and
406 V -8 . .. ........ 80 - 90 al 1.820
Wear Llmil 72 at 1.820
Valv e Op en
144 and 170 ... .... 112 - 122 at 1.222
Wear Limil 101 at 1.2 22
223 ....... . ... . .. 160-178 at 1.410
Wear limil 144 al 1.4 10
221 and 260 ....... 1 61 -1 78 al 1.380
Wear limil 145 al 1.380
3 52 .............. 180 - 198 al 1.420
Wear Llmil 16 2 al 1.420
390 V ·8 '4-Vl ..... 190 - 208 al 1.42 0
Wear limil 17l al 1.420
390 Poli ce In le r ceplor V- 8,
390 V-8 ( 6-V I and
406 V-8 ......... 255-280 at 1.320
Wear limil 230 al 1.320
VALVE SPR ING ASSEMBLED
HEIGHT- Pad to R et ain er
1 44 and 1 70 ....... 1-9/16-1- 39 / 64
22 1. 223 and 260 ... 1 -3/ 4- 1- 25 / 32
352 and 390 ...... 1-13 /16-1- 27 / 32
390 Police Inler cep lor V-8
....... _ ......... 1- 5116 - 1 -2 1/ 64
406 . .... .. ...... 1 -5 1/64-1- 53 / 64
VALVE PUSH ROD RUNOUT-
Maximu m
221 and 260 ................ 0. 015
Other Eng ines . ..... .. ....... 0. 025
VALVE PU SH ROD R UNOUT -
ROCKER ARM SHAFT 0 .0.
144 .170 and 223 ....... 0.780-0.781
352. 390 and 406 ..... 0.8385-0 . 8395
VALVE TAPPET DIAMETER-
Standard
223 .... . ............ 0. 4983-0 . 4989
Other Engines ........ 0. 8740 -0 .8 745
VALVE T APPET TO TAPPET
BORE CLEARANCE
22 3 ................. 0.00 11 -0 .00 27
Wear Limit 0. 0055
Other Engines ........ 0.0005 -0. 0020
Wear limil 0.005
HYDRAULIC VALVE LIFTER
LEAK DOWN RATE - Ma xi mum
144 . 170 .22 1. 260 . 352
and 390 ......... 1 0- 1 00 S eco nd s
ROCKER ARM TO ROCKER
SHAFT CLEARANCE
144 and 170 .......... 0.002-0.0045
Wear limil 0. 006
223 ... ... ............ 0.002 -0. 004
Wear limil 0.006
352, 390 and 406 ...... 0 .003 5 -0.00 55
Wear limil 0.0065
ROCKER 'SHAFT
BORE DIAME TER
144 , 1 70 and 223 ....... 0.783-0.784
352 , 390 and 406 ....... 0. 843 -0. 844
ROCKER ARM ECCENTRIC
PLUNGER
SPRING
Fr ee le ngth - App rox imat e
223 ........................ 1.52
Pre ssure- Pounds at
Sp ecified Length
223 .............. 5.75·6.15 al 1.17
Wear limil 5.5 al 1.17
CAMSHAFT AND
TIMING CHAIN
CAMSHAFT END PLAY
All Engines ............ 0.001 - 0.007
Wear li m il 0_012