May 30, 201411 yr 1998 impreza non turbo looking into engine compartment engine ticking over mystery ticking around power steering pulley originally suspected alternator but ticking more to the left no oil leaks fan belt adjusted ok doesnt get any louder if you rev engine noticed left hand plug gap tops vibrating in direction of mystery ticking but right hand side not vibrating took left hand ones off individually and pushed down firm but there is minimum up down play on those on left engine not misfiring so caps must be well seated onto plugs any clues appreciated just came on about 100 miles into a 250 mile journey ======================================================================================= UPDATE Turned out both left hand plugs were a little loose half a turn nipped up and clicking noise gone =======================================================================================
May 30, 201411 yr I know it's a bit of a pain anyway you can get a recording of it we have another member with ticking too, but I think it will be just the normal sound or a bit of piston slap if you're not use to hearing it. Have you checked oil levels ?
May 30, 201411 yr Author check oil levels regularly especially after longer runs and dont burn oil this ticking sound just appeared not overly loud with bonnet closed more pronounced bonnet open sounds like something touching but checked belt and seems ok only recently adjusted it thought dry bearing on alternator or something
May 30, 201411 yr I wonder if one of the cambelt pulleys is wearing out. If it is, it normally means the belt is touching things it shouldn't and the edge wears down. The resulting powdered belt material makes it's way to the bottom of the belt covers. It may be worth taking off a belt cover or two to see if they are clean or full of black debris
May 30, 201411 yr I agree with Tlag then if it's just started I had a video somewhere of the sound if I can find it I will post it again. I did post it for another member who said it sounded the same.
May 31, 201411 yr Author UPDATE ====================================================================================================== turned out both left hand spark plugs were a little loose half a turn nipped up ticking noise gone didnt take the credit entirely luckily in asda at 06 30 am this morning bumped into an old school mechanic who diagnosed problem ========================================================================================================
May 31, 201411 yr Oh nice you did suspect that to be the problem :D Best of it is I just found that video was just about to post it :)
May 31, 201411 yr Author only strange thing is how two plugs came a tad loose on one side sure cured the problem though yesterday was first chance to give it some welly since owning it maybe just shakedown glitch but sorted so thanks for advice
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