“SUN” SERVICE STATION

Sun (Auckland), Volume II, Issue 414, 24 July 1928, Page 6

“SUN” SERVICE STATION

rTVHE “Motoi’dom" section of The Su Queries and Answers Departmer accurate information regarding mechi ever the particular puzzle may be in or motoring information of any kind, ' refer the point to men who are re< respective lines. All communications must be accc address (not for publication), and sent dom," THE SUN, Auckland. Answe Speedometer.—l have purchased a Stewart-Warner speedometer for my Ford car. I now find that the box is marked “for use with balloon tyres.” My tyres are all 30 x 37* high pressure. Will the speedometer register the correct mileage and, if not, can you advise me what I should do.

This speedometer fitted on to your car would register about 5 per cent, too high. Do not endeavour to adjust it, however, but if possible return or exchange it at the agent’s.

Toss (via Huntly).—Will you please answer the following question: What is the cause of the benzine being blown back through the carburettor on a twin-cylinder motor-cycle. It is a new carburettor. The valves have all been reground and adjusted.

The timing of the valves appears to bo at fault and should be looked at by a mechanic when the opportunity offers.

N.R.P.—The rear brakes of my car, a 1924 Oldsmobile, scream a lot. What can I do to prevent it? * * *

When brakes scream and screech there is usually* some part of steel exposed and scraping on the brake drum. This may be remedied by the application of a small amount of brake dressing. If the steel is exposed too much, however, you had better have the brakes relined. R.S.E.—Could you advise me of the maximum speed, and maximum speed without injury, of a 1927 Oakland Landau sedan; also of a 1927 Chrysler “70” sedan? Thanking you in advance for your trouble. Oakland is 55 m.p.h., 40 m.p.h.; Chrysler, 70, 70 m.p.h., 50 m.p.h. R.A.McC.—I would like you to state in next Tuesday’s “Motordom” the following questions: The top speed and speed without injury to motor, and horse-power of the following cars: Cadillac, Auburn B.SS and Auburn 8.77, and Hudson. * • * (1) Cadillac, 70 m.p.h.; 60 m.p.h., 31 h.p., develops SO h.p. Auburn B.BS, 94 m.p.h., 80 m.p.h. without injury, 33. S h.p., develops 92 h.p. Auburn 8.77, 77 m.p.h.; 70 m.p.h. without injury to motor; 24.2 m.p.h. develops 62 h.p. Hudson, 84 m.p.h., 69 m.p.h.; 37 h.p., develops 90 h.p. J.C.8.—1 have a 1917 Ford which is difficult to crank in ordinary weather and about impossible to turn over in cold weather. It seems to be in high gear, as it creeps without even slipping with the clutch disengaged and brake in neutral. The clutch fingers are loose when in neutral and the bands do not drag. After the engine warms up this trouble all disappears. It turned over

jn includes in its service to readers a nt, the object of which is to give anical and touring subjects. Whatt either diagnosing irritating troubles, “Headlight” will endeavour to help, or cognised automobile experts in their □mpanied by the inquirer’s name and to THE SUN “Service Station, Motor:rs will appear weekly in this column. easy in any whether when I filled the crankcase with coal oil, but was just as bound up when I put in the regular oil. Will you please advise me as to the caues of this trouble and what to do. * * * You will have to change brake drum and possibly clutch plates.

F.A.W.—I have a 1925 Essex coach, mileage (true) 7,565 miles. I have just paid for having the transmission overhauled, a small bushing being replaced, clutch was drained and washed, refilled with kerosene and motor oiled, transmission has heavy motor oil (not grease) and since I have it home it has the clutch slipping badly. The mechanic who repaired it says this is because the transmission leaks into the clutch, and makes the clutch greasy, and there is no way to stop the leak; that the reason it did not slip before was because the transmission was almost dry and there was no oil to make it slip, but at regular intervals I have had this car. oiled and greased and it has not slipped. Can you advise me how this leaking can be remedied? Thanking you in advance for any help you may give. Answer.—Remove transmission. Remo vo front upper transmission bearing cap, clean out odl-return hole and renew bronze and steel cap washers if they are worn. R - E - T. —Please answer the following queries in the Automotive Section: (1) What is the maximum speed of the 1927 Nash Light Six coupe? (2) Wliot _ ... .

What is the maximum speed without harm to motor? (3) In breaking in this car it was driven 250 miles at 18 to 20 miles an hour; the following 500 miles at about 25 miles an hour; subsequently, 500 miles at from 30 to 35 m.p.h. Does this measure up to the standard of breaking-in this type of car? (4) Three quarts of light cylinder oil were mixed with gas for the mileage given above. (1) Was this correct? (2) Would you recommend further use of it? (5) Engine flushed, oil changed, and mechanism tightened and completely greased at 1.000 miles. What recommendation do you suggest other than this? * * * (1) f.O m.p.h. (2) 40 m.p.h. (3) Yes. (4), (1) Yes. (2) A T o. (5) Oil and grease every 1,000 miles. Change oil in crankcase every 800 miles. GREATEST CAR ATTENDANCE? An idea of the attendance at an Indianapolis “500”—which makes it the greatest sporting event in U.S.A. — may be gauged from the number of cars parked there for the race. More than 10,000 cars are parked in the field: the same number outside the track area, and a further 10,000 cars are parked near the track, the occupants walking to the main entrance gate. One hundred and fifty thousand people witness the Indianapolis race. The largest American football crowd was 113,000.