TORQUE VALUES FOR ROADSTERS:
R-16 Engine
Headbolts (aluminum head) 50
(steel head) 50 (1)
Connecting rod bolts 45
Main caps (3 main - SAE) 75
(5 main - Metric) 65
Flywheel to crankshaft 35
Manifolds 10
Camshaft bolt 30
Valve Cover 10
Crank Pulley 100 (2)
U-20 Engine
Headbolts 65 ft-lb.
Connecting rod 65
Main Caps 65
Flywheel 60
Manifolds 10
camshaft (two bolts) 13
jackshaft 35
Valve cover 5
Clutch cover 25
Crank Pulley 150
Notes
(1) I know I have seen different specs
for the aluminum and steel heads. The bolts are
the same, but the early Bob Sharp manual recommended
60 ft-lbs. for the steel head when used for racing,
otherwise 45 to 50 ft.lbs.
(2) I've see it also listed at 150 ft-lbs.
Metric engines specified 145 ft-lbs; Early SAE
engine listed only 100 ft-lbs.
COMMON TUNE UP NUMBERS
Valve clearance:
1500/1600 all .017" HOT (Recommended)
.021" Cold
2000 intake .010" HOT (4)
exhaust .012" HOT
Points .018-.021"
dwell 49-52 degrees
Plugs .027-.031"
Ignition Timing (at idle)
'66-'67 1600 16 BTDC at 600 rpm
'68-'70 1600 0 TDC at 700 rpm
'67 Su 2000 16 BTDC at 700 rpm
'67 Solex 2000 20 BTDC at 600 rpm
'69-'70 2000 0 TDC at 700 rpm
THE ABOVE ASSUMES A STOCK ORIGINAL DISTRIBUTOR -
after 25 years, check what is in there!
(4) Gary Saenz recommends .008"
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