Post #1
http://youtu.be/rZjXEGJZxsA What do we think?
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displaying posts 1 to 22 of 22
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 mjt4130
Regular  Location: hessle Registered: 29 Sep 2009 Posts: 200 Status: Offline |
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 Posted 12th Feb 2014 at 20:44
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JWP EFi
Turbo Legend!  Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #2
Yes, thats a tapper! 99% a bent valve or more. |
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Posted 12th Feb 2014 at 20:52
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Cjwatson27
Seasoned Pro  Location: Oxford Registered: 17 Sep 2013 Posts: 1,968 Status: Offline |
Post #3
That sounds a lot worst than mine , I'd say you've got big problems there ________________________________________ Old pugs don't die they just get faster |
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Posted 12th Feb 2014 at 20:52
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mjt4130
Regular Location: hessle Registered: 29 Sep 2009 Posts: 200 Status: Offline |
Post #4
Off with its head I reckon |
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Posted 12th Feb 2014 at 21:05
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JWP EFi
Turbo Legend! Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #5
its worth noting that bent valves can appear to look straight by looking at them. My method is to remove the valve spring and use a valve grinding stick to rotate the valve in its seat, if it is bent you will see it straight away. You say you haven't noticed a lack in power so the bent ones may not be very obvious, look for witness marks on the piston crowns and use the above method to identify which ones have to be replaced. |
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Posted 12th Feb 2014 at 21:18
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pete-gti
Seasoned Pro  Location: Kent Registered: 15 Feb 2009 Posts: 1,297 Status: Offline |
Post #6
Jesus big problems there , more then couple of valves, pistons will be well scored on top |
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Posted 12th Feb 2014 at 21:28
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JWP EFi
Turbo Legend! Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #7
the pistons will be marked but i doubt if they will be damaged to the extent that they are no longer useable. The valve stems on these engines are very thin, takes next to nothing to bend them |
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Posted 12th Feb 2014 at 21:36
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #8
Hard to tell on a video but that sounds quite 'knocky' for a 'tapper' and could well be the bottom end. How long has it sounded like that?Easy way to tell if It's head or bottom end is see if It's louder listening underneath by the sump. Either way I'd say that needs looking at asap as it doesn't sound very healthy at all and will only do more damage. ________________________________________ Ryan |
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Posted 12th Feb 2014 at 21:48
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JWP EFi
Turbo Legend! Location: edinburgh Registered: 07 Mar 2010 Posts: 2,163 Status: Offline |
Post #9
Op states the timing has jumped so it WILL have bent valves |
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Posted 12th Feb 2014 at 22:11
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robthe6
Senior User  Location: northamptonshire Registered: 06 Jun 2008 Posts: 667 Status: Offline |
Post #10
I just spin all the valves in a lathe or a drill. you will easily see if they are bent. ________________________________________ 1997 ph1 bianca GTI6 - The looker1996 ph1 Sigma GTI6 - Dead  1999 Red Rallye - The Daily 2005 Nissan Navara D40 - Family car 1968 Mustang Coupe - The dirty little secret Put ya foot down, put ya foot down we'll loose em easy! |
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Posted 12th Feb 2014 at 22:40
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #11
That sounds bottom end to me.  The reason I say that is because firstly, tappers are quite high pitched "taps" and yours is more dull sounding, secondly because the noise is too fast. Remember, the cams turn at half the speed of the crank, so at idle the "taps" from bent valves are much less frequent than in your video. I'm convinced that noise is running at crank speed. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 13th Feb 2014 at 07:10
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mjt4130
Regular Location: hessle Registered: 29 Sep 2009 Posts: 200 Status: Offline |
Post #12
Have been pricing up rebuilt, replacement engines today |
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Posted 13th Feb 2014 at 20:49
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aaron6
Seasoned Pro  Location: On the sofa in maidstone Registered: 16 May 2006 Posts: 5,840 Status: Offline |
Post #13
Just change the engine.Sounds to me like a tapper when on the right side of the engine as you look at it. But bottom end from the left side. ________________________________________ See the sheer power and might of the lesser known burrowing owl. |
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Posted 13th Feb 2014 at 20:53
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mjt4130
Regular Location: hessle Registered: 29 Sep 2009 Posts: 200 Status: Offline |
Post #14
If I decide to go down the replacement engine route, think I will see the old unit off with a couple of trackdays! |
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Posted 13th Feb 2014 at 21:12
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #15
mjt4130 wrote: If I decide to go down the replacement engine route, think I will see the old unit off with EFA ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 13th Feb 2014 at 21:21
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aaron6
Seasoned Pro Location: On the sofa in maidstone Registered: 16 May 2006 Posts: 5,840 Status: Offline |
Post #16
 You may find it'll last years. Although I do doubt it. .. ________________________________________ See the sheer power and might of the lesser known burrowing owl. |
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Posted 13th Feb 2014 at 21:26
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #17
aaron6 wrote: You may find it'll last years.  Have you listened to the video?  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 14th Feb 2014 at 21:43
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aaron6
Seasoned Pro Location: On the sofa in maidstone Registered: 16 May 2006 Posts: 5,840 Status: Offline |
Post #18
I have... thats why I followed it up with "although I doubt it". Sounds worse than my old blaze did. ________________________________________ See the sheer power and might of the lesser known burrowing owl. |
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Posted 15th Feb 2014 at 07:08
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #19
Your old blaze was a tapper - that's a bottom end thumper not going to last very long at all.________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Feb 2014 at 07:45
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aaron6
Seasoned Pro Location: On the sofa in maidstone Registered: 16 May 2006 Posts: 5,840 Status: Offline |
Post #20
Maybe, its difficult to tell. The airbox side side sounds tappy. The cambelt side sounds knocky. Unfortunately the vid dont really record the noise to well. ________________________________________ See the sheer power and might of the lesser known burrowing owl. |
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Posted 15th Feb 2014 at 08:19
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #21
I've heard probably 100 'tappers' in my time, maybe more and they all sound like your old blaze. The noise is too fast for camshaft speed at idle and too dull. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 15th Feb 2014 at 08:43
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rallyestyle
Seasoned Pro  Location: London Registered: 23 Jul 2003 Posts: 14,990 Status: Offline |
Post #22
Id go with bottom end too, whatever it is it's fooked Unless you are planning on upgrading then your best bet is just to chuck a new healthy engine in there ________________________________________ Just Drive It |
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Posted 15th Feb 2014 at 12:57
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