“SUN” SERVICE STATION

Sun (Auckland), Volume II, Issue 402, 10 July 1928, Page 6

“SUN” SERVICE STATION

fIfIIE “Motordom” section of The Su Queries and Answers Departmer accurate information regarding mechj ever the particular puzzle may be in or motoring information of any kind, ‘ refer the point to men who are rec respective lines. All communications must be accc address (not for publication), and sent dom,” THE SUN, Auckland. Answe: Query Editor: Could you tell me what the difference would be in the reading of the speedometer with use of oversize tyres? My car was equipped with 31in by 4.95 tyres and I have now put on oversize balloons, 32in by 5.77. A.B.C. * * * Ans.: When speedometer reads 50 m.p.h. you are only travelling approximately 47.5 m.p.h.. or about 5 per cent, slower than speedometer actually registers. E.P.Y.S.—My wife is continually complaining about the way oil leaking from the motor has stained the concrete drive down to my garage. Can these stains be removed with kerosene ? * * * First wipe off the excess oil and scrub the stains with kerosene or p€*trol, which will remove most of the oil. Then flush with clean water, sprinkle on some dry cement while the surface is still wet, and brush it over evenly with a broom. Because of the moisture, the cement sets and adheres firmly, making a spotless surface, so that stains that are not removed by scrubbing will be covered by the new cement. A.McL.—Please answer . the following questions regarding a ’22 model Ford tovirir.g: (1) Would worm thrust washers cause a. hum in rear axle differential when travelling on a level road? If not, what would cause this? (2) What causes the engine to stop firing or misfire when slowing down to turn a corner? It will not "fire for about 20 or 30 feet unless you pull choke. It has good compression and valves are O.K. Answer.— (1) No, babbit thrust washers are worn, allowing gears to | go in and out causing a hum. (2) I Mixture is too lean in carburettor.

in includes in its service to readers a nt, the object of which is to give anical and touring subjects. Whatl either diagnosing irritating troubles, “Headlight” will endeavour to help, or cognised automobile experts in their ompanied by the inquirer’s name and . to THE SUN “Service Station, Motorirs will appear weekly in this column. E.E.G.—My engine is terribly sluggish, which, I think, is due to the exhaust muffler becoming blocked with carbon. It certainly seems like that. Answer. —Loosen the exhaust at the manifold and pour some kerosene down the pipe. Then get under the car and tap the muffler all round with a tyre lever. Place a piece of old hosepipe on the end of the exhaust pipe, get a bucket of water, and suspend the hose within two or three inches of the bucket, and start the engine. The water will prevent carbon from flying about, thus eliminating any risk of personal injury and damage to the paintwork of the car. After this operation you will find that the muffler is quite clear. Query Editor.—Will you please answer the following questions in the next Tuesday's Motoring?: (1) What is the horse-power of T 926 Essex? (2) What is mileage per hour, maximum? (3) What is mileage per hour, minimum?—M.S.L., City. Answer.— (1) 17.3 li.p. (2) 60 m.p.h. (3> 5 m.p.h. C.A.R.-—What is the rated horsepower of 12-cylinder 1923 Packard? 43.20 h.p. G.E.M.— (1) I have a Chrysler 70 roadster. Will 32 x 6.20 balloons take tlio iilace of the 30 x 5.77’s that are standard equipment on this model, without any change of rims? (2) If so. would there be a marked decrease in pulling power on the hills or pickup on the level? Answer.— (1) Yes, but suggest yyu use the size 32 x 6.00 instead of 32 x 6.20. (2) No.

others to be the cause of their dissatisfaction. CAMP SITE FOR AUCKLAND Some few motorists have expressed the opinion that the A.A.A. has been scandalously dilatory over a motorists’ camp site for Auckland, and that if no co-operation is possible with the City Council, the association should have purchased a ground and provided the necessary equipment out of its own funds. Others again have contended that the association should disburse some of the large cash accumulations shown in the annual balance-sheet. Whatever the cause of dissatisfaction, however, the opportunity is present to-morrow evening to vent it in the proper manner.

nothing can be done under the maker’s guarantee. This, however, does not apply so much in the case of a car, say, only one year old. Providing it has been carefully used and has only been in the hands of one I driver, the new motorist may purchase it with confidence, knowing that |it has been properly run-in and is j ready for instant use. whereas it is ! not yet old enough for any appreI ciable wear to become apparent. When considering the types of second-hand cars available, it is wise to consider whether the purchase be but a prelude to acquiring a brand new car later on. If this is the case, it is quite a good idea to buy a used car of the same make as that which one favours for eventual ownership.