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TD Operation Manual - Periodical Attention

This section describe items that you will need to keep track of periodically. Also covered are the changes required for cold weather climates during seasonal shifts, the 500 mile free service provided by MG and a quick overview on cleaning and adjusting spark plugs.

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Periodical Attention

 

 



After first 500 miles (800 km.). Drain old oil from engine; do not wash with paraffin but merely fill with fresh oil. Examine valve rocker clearance and adjust if inadequate. Tighten cylinder head stud nuts. Drain old oil from gearbox and rear axle and replenish with fresh oil.
NOTE — This service is free under the M.G. 500 Miles Free Service Scheme (see page 48).
Every 250 miles (500 km.). Inspect oil level in crankcase. Refill if necessary. (page 6.)
Every 500 miles (800 km.). Check that the wheel nuts are tight.
Attach grease gun to the following grease nipples and give pump three or four strokes. These nipples are situated as under:—

2 on steering tie-rods, 4 on steering knuckles.

(On-L.H.D, models there is one on the clutch and brake pedal shaft in addition.)

Every 1,000 miles (1600 km.). Oil door lock bolts. Oil hinges. Examine oil level in gearbox and rear axle; replenish if necessary. Apply grease gun filed with grease to Ref. D (page 36) to the three grease nipples on the propeller shaft and give three or four strokes. Examine fluid level in hydraulic brake-gear supply tank and replenish if necessary. The tank should never be allowed to be less than hall full of fluid or more than three-quarters full. Use only Lockheed Fluid (No. 5 overseas).
Top up battery with distilled water. (See page 54.)
Add oil to carburetter dashpot. (See page 42.)
Apply grease gun filled with grease to Ref. C, give two strokes.
Every 3,000 miles (5000 km.). Drain engine. Refill with fresh oil, (See page 37.) Give distributor rotating cam a slight smear of grease to Ref. D (page 36).
Remove distributor rotor and add a few drops of thin machine oil in opening. (See page 43.)
Add two drops of thin machine oil to opening round distributor rotating arm. (See page 43.)
Smear contact breaker rocker-arm pivot with engine oil to Ref. F (page 36). Check contact breaker gap (page 53).
Check and clean sparking plugs (page 49).
Remove dynamo lubricator cap and refill with grease. (Ref. D. in Recommended Oils, page 36.)
Check tension of dynamo driving belt and adjust if necessary. (See page 55.)
Clean and re-oil air cleaner.
Apply oil gun filled with grease to Ref. B ( page 36) to steering gear-box grease nipple and give twenty strokes.
Every 6,000 miles (10000 km.). Drain gearbox and rear axle, refill with fresh oil. Fit new filter element to external oil filter. (See page 42.) Tighten door hinge fixing screws. Tighten spring seat bolts. Clean petrol filters at carburetter and petrol pump.



45



Periodical Attention

Use of the Oilcan

Draining the Cooling System



Examine the gaps of the sparking plugs and make sure that they are not too wide; they should be .020 in. to .0221 in. (.45 mm. to .56 mm.). Apply grease gun filled with oil to Ref. B (age 36) to nipple on revolution indicator gearbox on dynamo.
Every 12,000 miles (20000 km.). Remove sump and clean oil filter. Check fluid level in shock absorbers, refill if necessary with recommended fluid (see page 18).

Use of Oilcan

The owner is advised to keep an oilcan filled with a light oil to Ref. F (page 36) to apply to the bonnet lock and prop mechanism and the door locks and hinges, etc., at frequent intervals. Attention to such details ensures trouble-free action and prevents undue wear. Make sure that all points receive attention.



draining the cooling
  system

The radiator drain tap is fitted on the left-hand side of the radiator bottom tank, as indicated by the arrow in the top illustration.

Owing to the location of the water pump a certain amount of water is trapped in the cylinder block and cannot be drained from the radiator.

A second drain tap is therefore fitted on the right-hand side of the engine at the lowest point of the cooling passages, as indicated by the arrow in the bottom illustration.

It is essential to open this tap to drain the system completely.



46

Cold Weather Precautions

Draining the Cooling System

Attention to Bodywork



Cold Weather Precautions

If the car is not stored in a warmed building, steps must be taken to prevent the cooling water from freezing during frosty weather. Water upon freezing expands, with the result that there is a very considerable risk of bursting either the radiator or the cylinder block by the pressure generated. As a precautionary measure when frost is anticipated, the water should be drawn from the radiator and engine (see page 46) before the car is stored for the night, or, better still, an anti-freezing solution may be used in the radiator.
We recommend owners to use Smiths "Bluecol" or Filtrate "Nevafreze" non-erosive anti-freeze in order to protect the cooling system during frosty weather and reduce corrosion to a minimum. The correct quantities of anti-freeze for different degrees of frost resistance in the M.G. "TD" Midget are:—

7° F. ( -14° C.) O° F. ( -18° C.)
15% solution 20% solution
Size 1A Size Size 0+1Y
Quantity : 2 pints (1-14 litres) Quantity : 2¾ pints (1-56 litres)

If temperatures below 0° F. or —18° C. are likely to be encountered a solution of at least 25% of Bluecol must be used.
Before introducing anti-freeze mixture to the radiator it is advisable to clean out the cooling system thoroughly by swilling out the passages with a hose inserted in the filler cap, keeping the two drain taps open. Only top up when the cooling system is at its normal running temperature, in order to avoid losing anti-freeze due to expansion.
Make sure that the cooling system, is water-tight and examine all joints, replacing any defective rubber hose with new.



Bodywork Attention

The car should be washed and dried thoroughly before applying polish. The use of a non-abrasive polish is essential.
Apollo polish is recommended.
Grease and tar spots must be carefully removed with a wadding pad dipped in petrol. Chromium plating should be washed with soap and warm water only. Metal polishes or abrasives of any sort must on no account be used.



47



500 Miles Free Service

Early Attention Important

Items Included in Free Service



500 MILES (800 Km.) FREE SERVICE

During the early life of the car, soon after it has completed 500 miles (800 km.), you are entitled to have it inspected free of charge by the M.G. Dealer from whom you purchased it, or, if this should not be convenient, by any other M.G. Dealer by arrangement. This attention given during the critical period in the life of the car makes all the difference to its subsequent life and performance.


This service includes:—

  (a)   Drain sump, gearbox and back axle, and refill with appropriate brand of lubricant.
  (b)   Oil and grease vehicle throughout with appropriate lubricants.
Note.—New lubricants chargeable to customers.
  (c)   Check and, if necessary, adjust :—
          (1)   Ignition timing.
          (2)   Valve clearances.
          (3)   Carburetter control gear, mixture setting, synchronisation and slow-running.
          (4)   Dynamo drive belt.
          (5)   Correct clearance and free movement for clutch pedal.
          (6)   Alignment of front wheels.
          (7)   All steering controls.
          (8)   Tyre pressures.
  (d)   Adjust brakes and check level of Lockheed fluid in supply tank.
  (e)   Look over and tighten all nuts, particularly cylinder head, wheels, spring clips and body bolts.
  (f)   Top up battery and check working of all electrical equipment.

All this first service is free, only material used being charged for.



48

SPARKING PLUGS

Sparking Plug Gap

Replacing Sparking Plugs





The sparking plugs

The sparking plugs are of great importance to satisfactory engine performance and the correct type should be used for replacement. There is little to be gained by experimenting with different plugs, as those fitted as standard equipment are best to the engine. These are Champion L10S, 14 mm. and the gap between the points should be from .020 in. to .022 in. (.45 mm to .56 mm).
When adjusting the gap always move the side wire, never bend the centre wire. The Champion Sparking Plug Co. supply a special combination gauge and setting tool which is recommended.
To save petrol and ensure easy starting the plugs should be cleaned and tested at intervals of 3,000 miles (5,000 km.), preferably by a garage with a special air-blast service unit.
Plugs which are oily, dirty or corroded like the one shown on the right cannot give good results. Every 12,000 miles (2,000 km.) it will be found economical to fit a set of new plugs.



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