With most Oz Minis the only way to tension the timing chain is replace it.
Is it a rattle (chain) or a knock under load (far, far worse.....
)?
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| Annoying rattle from LH side of engine https://www.ausmini.com/forums/viewtopic.php?f=2&t=18445 |
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| Author: | snowie [ Sun Apr 23, 2006 8:21 pm ] |
| Post subject: | Annoying rattle from LH side of engine |
There's a really annoying rattle coming from the radiator side of the engine. I have eliminated the water pump and altenator as the source of the noise. I think it's either coming from the Air con compressor unit or the cam chain. It does it most of the time when idling, and even at higher revs. The engines done about 65,000k's so im thinking the cam chain could need tensioning? Any ideas would be a great help. |
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| Author: | drmini in aust [ Sun Apr 23, 2006 8:23 pm ] |
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With most Oz Minis the only way to tension the timing chain is replace it. Is it a rattle (chain) or a knock under load (far, far worse..... )?
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| Author: | Spaceboy [ Sun Apr 23, 2006 8:27 pm ] |
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classic timing chain rattle, replace with a duplex one |
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| Author: | drmini in aust [ Sun Apr 23, 2006 8:33 pm ] |
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Spaceboy wrote: classic timing chain rattle, replace with a duplex one
What he said...^^^ But do buy a decent chain, most of what's out there for sale now is rubbish. Best I've found is the German made `Iwis' duplex. 
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| Author: | JAM_IT [ Sun Apr 23, 2006 8:35 pm ] |
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 I thought it was BMC / Leyland standard practice to have crap chains NEW.
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| Author: | mooman10_0 [ Sun Apr 23, 2006 8:39 pm ] |
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Try lifting up the radiator by the cap, or pushing it down when engine is running (use a towel). Could be fan hitting against rad bolts or something like that. 
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| Author: | 9YaTaH [ Sun Apr 23, 2006 9:07 pm ] |
| Post subject: | what they said....and |
Harmonic Balancer?? |
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| Author: | snowie [ Sun Apr 23, 2006 9:20 pm ] |
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it's definatly a rattle. It's not the radiator either because I took that out and made sure the fan was clearing everything I'll disconnect the fan belt and see if it is the air con unit, could be a dry or worn out bearing. Going by what all of you said though it's probably the cam chain. Cos theres also a slight tapping sound coming from somewhere. I checked all the rocker/tappet clearances and there fine and my dad rekons it might have something to do with the cam chain. |
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| Author: | czerial [ Sun Apr 23, 2006 9:33 pm ] |
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I hate the same prob a while ago. It was on one of ma 998's. i could not find the rattle. turned out being the pulley (where a harmonic balancer is for 1098 and 1275 motors go). it is a shitty spot welded thing that just shredded after a few days of rattling. |
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| Author: | snowie [ Sun Apr 23, 2006 9:34 pm ] |
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Also, it's not an oz engine, it's a later model imported 1.3spi does this make any difference? |
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| Author: | Spaceboy [ Sun Apr 23, 2006 9:35 pm ] |
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rover minis had chain tensioners |
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| Author: | czerial [ Sun Apr 23, 2006 9:36 pm ] |
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it does to my explanation as 1275's had harmonic balancers
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