V8 landcruiser 70 series ticking noise in the engine
Submitted: Friday, Jan 15, 2016 at 10:06
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Josh N1
Hey there Iv recently developed a ticking noise coming from underneath my ute and it seems to be coming from around the turbo area and can't find any exhaust leaks. It's a very un sequenced tick like changes it's rythem all the time and only starts doing it when the engine gets hot any ideas ? Cheers
Reply By: HKB Electronics - Friday, Jan 15, 2016 at 10:27
Friday, Jan 15, 2016 at 10:27
Recently had a tapping noise on a KIA sportage, sounded just like tappet noise, persisted for months, tried putting engine flush through the motor (hydraulic lifters), different oil etc. Noise wasn't usually present when motor cold, but evident as soon as engine warmed up.
Ended up purchasing a few lifters from the US, about two weeks later the aircon died, due for a timing belt change anyway so I think will do the lot at the same time, remove hoses, dismantle the radiator shroud, off with the fan blades etc. Found the aircon belt had delaminated, the tapping was part of the belt hitting an aircon tube!
Well at least didn't have to pull out the cams to replace lifters. Just a change of belts and sounds like a new engine:)
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Reply By: Ron N - Friday, Jan 15, 2016 at 11:31
Friday, Jan 15, 2016 at 11:31
Josh, it is more than likely a small crack in the exhaust manifold. Hard to find and hard to see, but a fairly common problem with the 'Cruisers.
Exhaust manifolds can get to dull red heat under load or driving at highway speed - and if you drive though any deep puddles, particularly at speed, they will crack when any amount of cold water hits them.
Cheers, Ron.
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