The Birmingham age-herald., 1924-06-22

Dear. MT. Oldfield:
 l read your articles and questions and answers with great interest. There is knock or tap which is heard when the engine is idling or when running slowly on smooth, level road, it cannot be heard when I speed up.
 When stored the car for a time last winter I put some oil in the cylinders to prevent rust and when serviced the car again it ran smoothly for a short time. Later I cleaned out all carbon, checked up on connecting rod bearings and put small quantity of oil around cylinder walls and pistons and then the engine seemed to run perfectly, but only for eight or ten miles. This leads me to believe the piston rings are at fault. Now will you kindly tell me what is l the trouble and what repairs are need ed. can do this work myself if I know where the trouble isl. D. E. believe your trouble is due more than anything else to badly seating valves. The noise is known as valve 1 slap and will disappear if the valves are properly ground in and tappets ad- justed to .005 maximum. Wrist pin noises are more dull than a valve slap, the latter sounding very much like a sharp, tap, tap, tap of mteal rod against dish pan.
 Dear Barney Oldfield:
 My new car is continually slipping out of second gear. It doesn't slip out when 1 am running slow or on mod crate grade, but on q stiff pull or on q little speed.
 Kindly give me the exact reasons for this and also let me know if the trouble can be remedied.
 When I am running in high gear and attain speed of between 38 miles and 40 miles per hour, there is continual clicking in my motor. This is a sharp click.
 There is the same clicking noise in second gear when attain the speed of 20 miles per hour.
 My car has only been driven 2,600 miles and this clicking started at about 2,1O0 miles and the slipping out of gear started at about 400 miles-H. l.. s. Dear Barney:
 want to ask you about knock in my motor which seems to me to a single knock. It happens at times, but on a hard pull it is the heaviest. The car has not gone 4,000 miles yet and oil has been changed every 800 miles. The tappets are set with .044 clearance when motor is hot; carbuertor is set 12 notch for low speed and p notch for high speed. The reason 12 notch Is used for low speed is because the motor misses when idling with less, but runs smoothly when set at 12 notehes, the carbon was cleaned out and valves ground. Please tell me what you think Is the trouble.-D. E. D.
 This may be a piston slap, loose wrist pin, loose valve tappet, valve that has sloppy fit in it's guide.
 Dear Sir:
 Kindly answer the following I have always fabricated my car well. It requires five gallons oil to fill and each fall have had it at a garage for overhauling, taking out carbon and re- fill all around. After this was done I drove the car 300 miles and had quart of oil added. The spark plugs were somewhat foul from too much oil and there was a knock in the motor. sent to the garage, where it was claimed one piston was, burned. When the pan was drained only three pints daained out. It was again refilled and a new piston put in the car went 225 miles and was again drained and re- filled, and had only the same amount of oil drained out, yet several days be- fore I had to change one of the plugs, which was filled with oil. The garage men at three different garages can find no leaks of any kind, and appear at a loss to know what becomes of the oil. I arn anxious to know what to do to