| Author | Topic |
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Location:
Lost in the K hole
Registered:
May 2002
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 5M Timing/Valve Train Rattle
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Sat, 07 June 2003 13:42
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heya...
the top end of the ol girl has this really pronounced, course, harmonic, rattling tap in it... kind of like a tappet thats out of spec, but much 'heavier'. this has been shitting me up the wall, though i suspect its just cause the old donk is getting old.
it is most obvious in a 'neutral' power situation, ie in gear, when youre cruising at speed, and *just* lift off the loud pedal - just so youre not providing power, but arent compression braking either. its a tiny little piece of pedal area where the engine is perfectly paced to road speed - a no-load situation i guess.
anyway, its most obvious around say 3000 rpm.
upon closer inspection, it seems to be coming from the front of the timing cover (cyl # 1 or #2, or the timing gear).
now ive gone and done the following:
-reset all tappets to tolerance
-tightened all valve train fasteners
-replaced and retesioned the timing chain tensioner bolt.
-new oil with lucas additive
none of the above really fixed it, though i think adding the lucas oil stabiliser made it little quieter. all the other attempts did very little.
so im down to:
-the timing chain has sretched beyond hope
-the timing chain nylon vibation dampers (??) are fubar
-the rocker arms are virating on the rockers shafts
-the rocker arms are sliding up and down the rocker shafts in a harmonc fashion against the locator springs.
ayone have any other ideas?
none of the above strike me as potentially fatal - just annoying. anyone have any thoughts on this? im cruising around far western NSW at the moment, and the noise is a little unnerving i the middle of nowhere. im not too keen on spending cashola on the 5m, but am wondering if theres anything serious i should consider??
cheers
ed
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| | Subject | Poster | Date |
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5M Timing/Valve Train Rattle
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ed_ma61 | Sat, 07 June 2003 13:42 |
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Re: 5M Timing/Valve Train Rattle
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Norbie | Sat, 07 June 2003 15:11 |
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Re: 5M Timing/Valve Train Rattle
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TA22-3SGTE | Sat, 07 June 2003 21:17 |
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Re: 5M Timing/Valve Train Rattle
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gianttomato | Sat, 07 June 2003 23:32 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Sun, 08 June 2003 03:05 |
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Re: 5M Timing/Valve Train Rattle
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gianttomato | Sun, 08 June 2003 03:14 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Sun, 08 June 2003 03:30 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Sun, 08 June 2003 03:51 |
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Re: 5M Timing/Valve Train Rattle
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justcallmefrank | Sun, 08 June 2003 04:03 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Sun, 08 June 2003 04:10 |
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Re: 5M Timing/Valve Train Rattle
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toycelica77 | Sun, 08 June 2003 09:16 |
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Re: 5M Timing/Valve Train Rattle
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wilbo666 | Mon, 09 June 2003 08:13 |
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Re: 5M Timing/Valve Train Rattle
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gianttomato | Mon, 09 June 2003 08:28 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Mon, 09 June 2003 08:38 |
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Re: 5M Timing/Valve Train Rattle
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Norbie | Tue, 10 June 2003 02:20 |
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Re: 5M Timing/Valve Train Rattle
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gianttomato | Tue, 10 June 2003 02:44 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Tue, 10 June 2003 02:47 |
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Re: 5M Timing/Valve Train Rattle
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ed_ma61 | Tue, 10 June 2003 02:51 |
