Show e nocks and How to Them BarneY Oldfield 11 Br tined Sy M es tc Ire Inc El Dt that at I x Ive tt Ietter erous I that the en engine lne 4 ats utts t makes mates a and atta s or of ills lack her ot of familiarity withof with w of the o eD n. n he la Is arable s the tt cruse of the tte trouble lOan lOan-elt lf i. par cak h. h puts Parts of ot u engine and their Toa wIn be able ablo wo to tell ten quite Is 1 causing troubles trouble Thiel Thielle hf ei ou consider the tho drivers le Je fell fear of a l noise which Is la one of or q h of getting down to rea re- re p Knock would bearing sD hart a aft J ss as frequently tre as a a. crank- crank g knock Then there Is isiri nature of or the part put as as for tor err iri erra s a rape It Itis lis la not he heavy vy and ands but two things Its seat S 'S It would des In to either ease case e. e fit tit is tog kno own n as a a. slap sound- sound like A large coin smooth face tace against a a. 1 Ith Ip Its flat each h as A crankshaft T pr put Dart p bearings either endwise Ii 1111 It its j wm wUl cause a dull dun mock knock I Itself Is thick and heavy and andr andris soft ris comparatively rings r P we are c tro to rW each cach other would That tat one night might term a iii pound- pound do d. crankshaft bearing would i a im to Increase in magni- magni I rith speed Peed and Its periodicity u te that of ot crankshaft ft speed rod bearing knock has hass I dull s sound soend ond as a a. crankshaft but but If II the bearing Is very ery knock Is somewhat vora tors 1 the lie ie i la is nature atu pin usually seats scab In the snit bosses es without bearing or per- per i bronze bushings s. When the theja pia ja Is worn or the bearing worn I Is a knock j of DC t metallic nature f than t tb n a a spark knock and Just lust I As you know the spark sparks i ithe Is s th the commonest of or all aU ocas ocas oc- oc oc 1 as IS It does when th the engine engines i s g a loud load and the spark ad- ad too fir far is supposed up to a a. short time tk at this knock was caused dl- dl by by 1 the spark the thes I s tad and causing the piston to be against the cylinder cUnder walt wall It lh own a not Dot very Ion long ago that It used cued by br detonations of ot fuel ruel par- par resulting high pressure t the knock tf f stirs curs ears or timing chains emit u Ue noises noles when something The be chain may be too loose lei fd Ie case 5 It will slap perhaps if tie pease casa in which It operates opera teas rein If badly worn produce l I IlIr j lIr sound mind and aM at low q speeds eeds anted ed knocking due to the ltd being bem taken periodically U up Ika in engine Is pulling the tho parts Dy tighten which accounts for feet that tbt clicking of ot push rods appears when the cut car is un- un EM are rather baffling s and r T to employ a process of Ua Ji III order to find the exact K w Erg 4 play In the crankshaft In nay may y itself not be the IP noise but the play bec bem be- be c m to the connecting i pistons ons ml might ht cause one one- of ot ottO r tO to make a noise which Is s more fr patch itch l knock ock should be bo more easy ie te th thin than n any other because the themay thenay I nay may be connected and discos j j front f other parts In order to Ise particular part of ot the clutch the noise one must be familiar I the Ue ti details of ot construction I I on 10 noises J may be oe De in in the me merw rw cf knocks due to worn gears all alignment may cause use I J. J au Sometimes the I I clamed binned for noises Mists that come I U. U i rear sale axle because the body fur cir car acts like a sound boX bog and fj the th M noise to travel forward tine lIolu like transmission ty be caused b by worn bearn bearle bear- bear JJ n le Stars gears 1 s broken gears warped and iu flo shafts out of or allgrim alignment nt Joints travel at crankshaft When they become worn I SOund a as lf It someone were I against r the car floor with himer e r. r j I torque I tubes linkages ha e hue I their characteristic F f X t torque torce tube tabe that Is la loose rage will m Cause a 10 loud l y J o on ch speed that is 15 is from say twenty wenty miles mlles P per r h miles an an hour hou r or ogle It and rd when lia starting t the he car or o r when bringinG It ate stop D o or f Little 1 fraudulent auto stock began to r rIe cry j Ran living 11 g l n Uruguay Motor Life l k Corner at t a i corner st Ie the dies la-dies' 1 knees tee hIs thumb a alda h bs Wouldn't 1 come ca ear was as the he 1 1 national Life Lite ASK SK ME ou W Q QUESTIONS A AND D ANSWERS Barney In tart starting off ott my car Jumps forward sometimes 3 two or three e feet te fe et Tho dealer advises advisee me to Install a a. new clutch Will this eliminate cUm elim laate the trouble I have had to havo new gears In the transmission and differential and am having having- trouble with them now The dealer says say it Is 13 caused by the cone cono clutch A. A A A. J. J A bad d clutch clatch may anse cause a lot of ot transmission 2 and d rear end trouble Usually a a. clutch of ot that kind brings bring's about smooth engagement but If It f the facing facing- is in good condition otherwise I should treat It with foot toot oil and adjust it as es best I c could ald I 1 would not install Insull a a. plate clutch because because be be- cause I knoW w the tho cone can be made mad to operate fairly fairly- welL a aI Barney Oldfield I hare bare broken I three drive shafts in eight months the I ear car getting very little use Can you i please tell teU me what you thins think Is ca causing causing caus caus- 9 ing InS those to to break The shafts till all u break at the end of the pinion J. J II M. O. O Out of ot alignment Is usually the cause of f such Ruch a a. condition The housing is probably sprung Dont Don't Install new shafts without having the whole rear end examined e 4 a Barney d I would like to know what 01 oils you recommend for tor I summer and winter use in a. a I. I car Also would like to know Just how tho cutout cutout cutout cut cut- out works on the electric circuit that thatIs Is Is does Jt at t break the circuit when the battery is Cs fully charged or not and if It not when does it operate J. J S. S Use the best grade STade of ot medium oIL The cutout does not disconnect when the battery Is fully tully charged charled it t merely disconnects the battery from the generator generator generator gen gen- at low speeds S 3 s Barney Oldfield After grinding the valves and removing th the carbon in my car I tried It lb o 01 a hill and it had lots lotsof lotsof lotsof of power Two days das afterward I tried the same sune hill bill and got ot onI only way half up Since then my car has bas little power on hills but good od On n tho the level leeL Can you ou give me an Idea of ot the trouble A. A NI N N. I would say ear it was caused by a a. cylInder cylInder cylinder cyl cyl- inder leak or poor IS' IS ignition Try your compression and test spark 9 i Barney My ear car snakes makes a dull dall clattering noise at all 2111 speeds It has been overhauled d and everything seems to be all right rl-ht except the motor Piston pins are aro a a. trifle loose In bear bear- ings The pistons have hae no brass bear beLr ings Would that cause tho noise If It so BO would It bo be better to get Set brass bearings put in old pistons or new pistons in the motor The motor has hasgood hasgood good power J. J N. N S S. Your description la is rather poor D. D as asa asa a no clattering clatte nol noise can be caused by numerous numerous numerous nu nu- nu- nu parts of ot the engine The loose wrist pins would cause knocking similar similar similar simi simi- lar to a spark knock Better Install new pistons rather than install bearInGs bearInG's bearings bearings bear bear- ings InG's for the pins e e r Barney Y Ol neld I h have have- e a t touring car which misses irregularly I nave have had the vacuum tank and gasoline line I apart t and have cleaned all screens without remedying the trouble The Tho motor fires tires O. O I K Ie at slower sp steeds eds The missing Is not on one cylinder but seems to run through tho the whole engine F F. F B. B It might be caused by Ignition trouble trou tron- blo ble duo due to poor breaker adjustment disturbing the timing slightly The valves alves may not be adjusted just right I for such speed work Worle I bell believe v however how how- however ever that the I Ignition Is la tho unit to toi i attend to Sometimes such a. a thing as asa a loose connection vibrating more at I high speed causes such action s a s Barney Would you kindly toll tell me what Is the matter with our car The engine becomes hot and the water bolls after five minutes minutes' run It Ita leas has been overhauled o this year and uLd the tho batteries charged It has be been n examined examined exam exun- ined at t four tour or five garages and al always always always al- al ways returns with the tho camo samo old trou trou- ble I think It has a short circuit somewhere but cannot find Ind It J. J S S. S I 1 wrote an article on overheating which you OU should read There are areman man many causes of oC this trouble but In your case I 1 would attend to the following following fol tol- fol- fol lowing first 1 Obstruction In n water system S Sec e that water later flows Clows freely through j Jackets Jack jack- ets and radiator 2 Fan belt lt slipping sUppIng 3 5 Spark too late 4 4 Carbon In cylinders 5 S. Valve timing wrong |