Setting Mixtures; Engine Checks; Test Running And Tuning; Driving And Service - Suffolk SS100 Build Manual

SS100 Build Manual (Export Edition)
carburettor linkage making sure if there is any slack you take this up as both carburettors need to open at
exactly the same time.

13.2.7 Setting mixtures

The mixtures are best set on a gas analyser but you can set them close by following these instructions. If
possible make sure you have the correct needles for your set up. Then with the car at running temperature
and the air filters removed, lift the carburettor piston with the piston-lifting pin or by a flat blade screw driver
(don't use you finger as your hand will obstruct air flow). If the engine revs slow that means the engine is
running too lean on that carburetor, if it speeds up its running too rich, if it speeds up a little then settles
again its running about right.

13.2.8 Engine checks

Once happy with the engines running check the following:
The ignition light has extinguished.
•
The tachometer reading looks correct.
•
The water temperature gauge looks correct.
•
The electric fan is cutting in and out at the correct temperature.
•
Check for exhaust leaks.
•
After cooling, check oil and water levels.
•
After the first run check and top up the oil levels particularly the gearbox as the overdrive will only
•
take in oil
when the car is driven.
IMPORTANT : ENSURE THAT THE ENGINE IS FULLY UP TO TEMPERATURE AND
RUNNING SATISFACTORILY BEFORE ATTEMPTING TO DRIVE THE CAR
13.3

Test Running and Tuning

13.3.1 Running In and Service Instructions
Your engine has been test run and checked before dispatch.
On installation the engine should be filled with quality 20/50 engine oil and fitted with new filter (some
engines are supplied with filter ready fitted). Check condition of coolant system.
Fill with correct ratio of quality antifreeze (containing corrosion inhibitor) and fresh clean water. Check
condition of all ancillary components and set ignition timing to factory specification.

13.3.2 Driving and Service

For the first 500 miles to not exceed 3000 RPM. Do not labour engine and avoid constant speed
(i.e. Motorways). Vary engine speed as much as possible (Up to 3000 RPM).
500 MILES
Drain engine oil (with oil hot). Fit new filter. Refill with quality mineral 20/50 oil or 15/40 mineral oil.
With engine cold re-torque cylinder head nuts to 60 ft lbs (82 Newton metres). Check all hose clips,
ancillary securing bolts etc. Check ignition timing and carb mixture (CO/HC).
500 - 1000 MILES
Gradually increase maximum revs from 3000 to 4500 rpm for short bursts
1000 - 1500 MILES
Build up to maximum revs for your model. Do not use sustained high revs for long periods.
Carry out a full nut & bolt tightness check on the engine, chassis & body components
1500 MILES
Repeat service instructions as per 500 miles.
We strongly advise that valve clearances are checked by competent mechanic.
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Rev 10 November 2013