Post #1
hey guys wondering if anyone has any ideas. when at idle i can hear a knocking coming from the head, sounds like a bolt rattleing round inside.lol its definitly coming from inside the head, only happens on idle if i rev it as soon as it gets back to idle its knocks? is my engine about to blow up????;lol
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displaying posts 1 to 22 of 22
| Author | Subject: knocking coming from head |
 lilnickgti6
Junior User  Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
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 Posted 17th Jan 2010 at 22:14
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #2
Have you checked your spark plugs are done up tight??  Well worth a check in my opinion.  Stan. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 18th Jan 2010 at 00:38
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phil19gti
Seasoned Pro  Location: Altrincham Registered: 17 May 2004 Posts: 1,756 Status: Offline |
Post #3
I had a knocking last week. Checked the spark plugs and one was loose. Noise has gone now.________________________________________ 2006 Performance Blue Mondeo ST TDCI1999 Black 306 Rallye 1991 Lazer Green 205 1.9 GTi 2003 Blue Focus RS 1999 White 306 Rallye 1992 Red 205 1.9 GTi 1988 Red 205 1.6 GTi |
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Posted 18th Jan 2010 at 01:30
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smithy27eng
Newbie  Location: blackpool Registered: 25 Dec 2009 Posts: 32 Status: Offline |
Post #4
 ________________________________________ 306 gti 6 bpl |
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Posted 19th Jan 2010 at 04:23
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #5
had all new spark plugs put in, knocking still there, anyone have any more ideas? |
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Posted 19th Jan 2010 at 23:39
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,817 Status: Offline |
Post #6
bent valve, rattling big end bearing.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 20th Jan 2010 at 00:00
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peugeot dave
Regular  Location: southampton Registered: 04 Aug 2009 Posts: 227 Status: Offline |
Post #7
lilnickgti6 wrote: had all new spark plugs put in, knocking still there, anyone have any more ideas? maybe a knock sensor is at fault, i would get a diagnostics read out done, if its any electrical fault it should come up with the fault saving you lots of effort and time. failing that try high octaine fuel. ________________________________________ my car's spending all my money grrrrrrrrrr |
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Posted 20th Jan 2010 at 00:06
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #8
high octane fuel?? the sound is coming from the cam area on the right side |
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Posted 20th Jan 2010 at 00:09
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #9
think i might of found something........a while ago i onpened the oil filler cap and there was a piece of black plastic that had snapped off something, I think it could be one of the bits ive pointed to on the picture. what are these plastic things for?? the problem with the knocking im getting now i think it might be abit more of the plastic rattleing round in the head lilnickgti6 has attached the following image: |
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Posted 20th Jan 2010 at 00:43
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rudolf
Seasoned Pro Location: Skelmersdale Registered: 07 Apr 2004 Posts: 2,769 Status: Offline |
Post #10
It is part of the oil spray bar.________________________________________ S Reg Diablo standardsSpec SORNEDR Reg Nile standard spec written off then repaired X Reg Astor in need of TLC R Reg Nile to restore Set of Lions to fit. |
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Posted 20th Jan 2010 at 00:54
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #11
doesnt seem to be any problems with oil, definitly lots of oil getting in there lol( i opened the oil cap while engine running, with a nice fresh cleaned engine bay lol.) do you think it might be abit of the plastic bit stuck in there knocking about?? how much roughly would it cost to open the head up and have a look? is it big job? |
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Posted 20th Jan 2010 at 01:24
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rudolf
Seasoned Pro Location: Skelmersdale Registered: 07 Apr 2004 Posts: 2,769 Status: Offline |
Post #12
lilnickgti6 wrote: doesnt seem to be any problems with oil, definitly lots of oil getting in there lol( i opened the oil cap while engine running, with a nice fresh cleaned engine bay lol.) do you think it might be abit of the plastic bit stuck in there knocking about?? how much roughly would it cost to open the head up and have a look? is it big job? You just need to remove the cam covers with a Torx bit. ________________________________________ S Reg Diablo standardsSpec SORNEDR Reg Nile standard spec written off then repaired X Reg Astor in need of TLC R Reg Nile to restore Set of Lions to fit. |
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Posted 20th Jan 2010 at 03:23
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #13
really as simple as that? any gaskets? i dont have much knowledge about engines, could i damage the engine opening it up? |
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Posted 20th Jan 2010 at 20:35
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jmh306
Regular  Location: Eastbourne Registered: 03 Aug 2009 Posts: 321 Status: Offline |
Post #14
i removed my cam cover for spraying last week the gasket is build in on the cam cover so you should be ok removing it  ________________________________________ FB: South Downs French Car ClubDiablo 6 2001 low boost Diablo 6 2000 100% standard working air con Vw Caddy tdi work van |
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Posted 20th Jan 2010 at 23:26
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peugeot dave
Regular Location: southampton Registered: 04 Aug 2009 Posts: 227 Status: Offline |
Post #15
you say a rattle\knocking sound at idle is it only at idle or does it rattle more through the rev range?????the reason for high octaine fuel is the engine has knock censors and will adjust the timing to suit the fuel (basicly) its worth a try. also if the plastic you broke off was a small piece surely it has gone through into the oil filter!!! can you remeber how big it was? ________________________________________ my car's spending all my money grrrrrrrrrr |
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Posted 21st Jan 2010 at 03:50
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peugeot dave
Regular Location: southampton Registered: 04 Aug 2009 Posts: 227 Status: Offline |
Post #16
welshpug! wrote: bent valve, rattling big end bearing. would this not be worse with the engine increasing revs??? ________________________________________ my car's spending all my money grrrrrrrrrr |
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Posted 21st Jan 2010 at 03:53
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armzsc6
Seasoned Pro  Location: Crowborough Registered: 22 Mar 2008 Posts: 3,445 Status: Offline |
Post #17
If its a bent valve or rattling big end the tapping will remain throughout the revv range, i should no, my 6 had 10 bent valves when i bought it! Good job i already new that and had a head ready lol.More likely to be a warn out hydraulic lifter if it goes away when rev'd up or doesnt always do it. ________________________________________ Black power baby! SUUUUUPERCHARGED Seat Leon FR TDI 190BHP 300lbft daily gti-6 killer :p 12x 306's owned so far Cambelts, clutches, service work carried out on All makes and models, Peugeot Citroen / mitsubishi specialist. Pug planet / Citroen Lexia diagnostics / code reads available. |
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Posted 21st Jan 2010 at 05:18
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #18
hydraulic lifter. is that a big job? |
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Posted 23rd Jan 2010 at 05:28
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gnrlee
Forum Admin Location: Leeds Registered: 20 Aug 2005 Posts: 8,878 Status: Offline |
Post #19
a head rebuild and a head skim ________________________________________ Proud Member of the ASTOR Owners Club |
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Posted 23rd Jan 2010 at 08:04
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smithy27eng
Newbie Location: blackpool Registered: 25 Dec 2009 Posts: 32 Status: Offline |
Post #20
that is whats happened to mine took it to garage today found out that the water pump had gave in causeing the cambelt to have play in it basically on the verge of coming off which has had a knock on affect on the cams which have been bouncing around because the belt wasnt tight enough hope this helps________________________________________ 306 gti 6 bpl |
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Posted 23rd Jan 2010 at 16:22
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buzzbrightyear
Seasoned Pro  Location: hiding all receipts for car Registered: 09 Jul 2008 Posts: 11,894 Status: Offline |
Post #21
if the black plastic thing has come off then wont the oil spray bar be in 2 pieces??hence another bit of oil bar loose in there, and not enough oil getting to the end area where its missing?? just a thought ________________________________________ andrew315rawson@live.co.ukMoonstone phase 7 gti6 My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1 |
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Posted 23rd Jan 2010 at 17:15
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lilnickgti6
Junior User Location: flintshire Registered: 29 Aug 2009 Posts: 85 Status: Offline |
Post #22
found exactly where the knockings coming from, its the vacuum pump, going to try replacing that and good oil change |
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Posted 31st Jan 2010 at 02:24
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