Hi all,
1991 LiteAce, 180k km. 2C diesel, non turbo. So far it has been running without trouble. But recently I noticed, after every service (~2500-3000km) Engine sounds different. It sounds like VW Beatle's engine (like blrrr, not much, but noticeable and ugly for a diesel). Usually it disappear after couple of days. But after the recent service, now it has been a week, it still sounds the same. First I though it's a silencer leak, and when carbon deposits after a few 100km leak stops and sound disappears. But I was never able to find any leak so far. Even when I try to block silencer while running, I don't see any leaks. This sound comes only when I accelerate (when engine is loaded). When the engine reaches the accelerated speed, it disappears. One of my friends told me, it could be an injector problem.
Anyone has any ideas/experiences ?
Sorry for the lengthy letter.
Harshana
- (#11806) Harshana, 18 Nov 03 5:56
Is the appropriate oil being used?
Has it had a new exhaust recently?
Another thought - has anyone previously used an 'extreme pressure' additive in the oil - and its now leaving the system
Could check fuel lines - are hoses secure (not drawing in air)?
Hows it breathing? Air filter clear?
- (#11807) chris turner, 18 Nov 03 8:24
You may also check the exhaust manifold and consider what jobs were done on its most recent service.
Is it possible something is loose and vibrating?
- (#11808) chris turner, 18 Nov 03 9:05
cracked exhaust manifold or failed gasket...
- (#11809) david miller, 18 Nov 03 10:41
Everyone thinks its some exhaust or intake related noise and not injectors ?
Then its good :)
Yes I should check whether the Air filter is properly fixed and whether all exhaust joints are leak free.
I'll let all know if I fix it by any of this
Thanks for the responds
Harshana
- (#11810) Harshana, 19 Nov 03 1:23
Hi all,
Just removed the silencer joint near the gearbox oilnut, put some asbestos thread and fixed it. Difference in engine noise was remarkable. All these years I have run with the leak (untill it became notisable) and always thought its just engine noise.
Bye,
Harshana
- (#6834) Harshana, 10 Dec 03 05:41
I'm glad to hear that it's nothing serious and potentially too expensive. A family friend with an Estima said that his was making a bit of noise, and I just pointed out that it was just the way the engine was positioned.
I was a bit confused when I first saw this thread. I wandered if your Liteace sounded like John, Paul George, or Ringo!
- (#6834) Al Bickley, 11 Dec 03 07:15