Following information is helpful as a quick guide for timing engine.
Timing:
Remove distributor vaccum hose and block leak with a screw etc.
Timing window can be seen on the Gearbox bellhousing/engine case. Set timing to 8deg btdc +-2
Valve clearance:
Remove rocker covers via two 12mm bolts at top of covers.
The cover may need some persuasion with a mallet to remove. A new cork gasket will most likely be needed as it will likely disintegrate.
There is a 12mm nut on the rocker which needs to be loosened for each valve. The square drive controls clearance and can be adjusted by hand.
Clearances are:
.25mm intake
.35mm exhaust
Outside valves are intake, inside two are exhaust
Carburettor Rebuild:
Cheapest place to source a kit in aus is online via rockauto.
Carburettor is a hitach dgh-306(same as Datsun 120y)
For in depth information on this carb see the datsun1200 wiki @ Datsun1200.com
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