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Author Subject: Top end rattle
fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #1
Hi all recently fitted a replacement 6 engine in my 205 track car as I blew the bottom end on the old one. The new engine i bought has had approx 1500 miles on it after a full rebuild. The problem I have is it sounds like the cam nearest the bulkhead is making a noise at around 2k rpm, its as if there is something loose inside. Im told the engine is a good one and been built by a reputable company im told it was Thumbs up fine before fitted. Not driven it yet only started it up but left running for around 20 mins thought it might just be a noisey lifter or something but the noise doesn't change? Could anyone give me any ideas or if comment if they have had this issue?
Thanks Thumbs up
Posted 26th Jan 2013 at 18:07
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24seven

Seasoned Pro

Location: Derby

Registered: 05 Oct 2005

Posts: 6,221

Status: Offline
Post #2
Is it only at 2000rpm or does it just appear to get louder/quieter around that speed?

________________________________________

Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660
Posted 26th Jan 2013 at 18:11
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #3
No it's there at around 2k then it either goes or engine sound drowns it out. At first I thought it was heat shield or something but it all looks fine.
Posted 26th Jan 2013 at 18:15
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24seven

Seasoned Pro

Location: Derby

Registered: 05 Oct 2005

Posts: 6,221

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Post #4
Are you sure it's not coming from one of the injectors? Try a screwdriver stethoscope to see if you can better pinpoint where it's coming from on both the inlet and exhaust side.

________________________________________

Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660
Posted 26th Jan 2013 at 18:42
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fraserd007

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Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #5
Will do thanks. Just hope it's not terminal!
Posted 26th Jan 2013 at 18:50
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #6
I would imagine it is a heatshield possibly, the small one which attaches to the exhaust cam cover. As 24seven says, use a screwdriver to further pinpoint where exactly it's coming from.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 26th Jan 2013 at 18:53
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fraserd007

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Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #7
I'm going to,I've already removed that heatshield to see if it was that but no change.
Posted 26th Jan 2013 at 19:02
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #8
Is there definitely no noise at idle, apart from what should be there?

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 26th Jan 2013 at 19:47
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ryangti6

Seasoned Pro

Location: Pontypool

Registered: 01 Sep 2006

Posts: 1,839

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Post #9
Also check the vacuum pump as I've seen one or two of those make some nasty noises.

You may need to take it for a drive to get the lifters to fill properly, I've read a few threads on here similar and experienced it myself where the lifters won't quieten down till its had a half decent run.

________________________________________

Ryan
Posted 26th Jan 2013 at 20:55
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eliotrw

Seasoned Pro

Location: Southwark

Registered: 18 Jul 2010

Posts: 4,864

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Post #10
stan_306gti6 wrote:
I would imagine it is a heatshield possibly, the small one which attaches to the exhaust cam cover. As 24seven says, use a screwdriver to further pinpoint where exactly it's coming from.

This this this this this.


Mine is the same, I tighten it and it usually loosens itself a few thousand miles down the line!

________________________________________

Ex- Phase 3 China GTi-6 T-Reg
Posted 26th Jan 2013 at 21:01
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #11
Eliotrw - He says he has removed the heatshield to eliminate it and the noise is still there.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 26th Jan 2013 at 21:10
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eliotrw

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Location: Southwark

Registered: 18 Jul 2010

Posts: 4,864

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Post #12
Fair enough, Might not be that easy then.

Perhaps the main heatshield is falling slightly...

________________________________________

Ex- Phase 3 China GTi-6 T-Reg
Posted 26th Jan 2013 at 21:39
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #13
Thanks guys will report back.
Posted 26th Jan 2013 at 22:22
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mikefish1

Junior User

Location: St. Austell

Registered: 23 Nov 2010

Posts: 90

Status: Offline
Post #14
Try the flange from the centre pipe to the manifold as i had the same problem with mine and replaced the flange kit and job done Smile
Posted 27th Jan 2013 at 11:17
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #15
Right checked the vac pump thats tight,checked the plugs they are tight,no heatshields touching,nothing touching that shouldnt etc. Good call on the flange gasket i will get a replacement tomorrow
,i expect if its worn then the metal on metal sound could travel making it sound like rear of engine!! Ive noticed the noise only appears once the engine is upto temp......
Posted 27th Jan 2013 at 21:37
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mikefish1

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Location: St. Austell

Registered: 23 Nov 2010

Posts: 90

Status: Offline
Post #16
Yeah that's exactly what i imagined as the noise sounds like its coming from the engine from sitting inside the car. But metal on metal will make it sound like that. Very easy to do also but when you take the flange off check the cross section up inside the manifold to make sure its not cracked or broken as that will also have the same effects.
Posted 27th Jan 2013 at 21:56
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #17
Cheers will do mate.
Posted 27th Jan 2013 at 22:00
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mikefish1

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Location: St. Austell

Registered: 23 Nov 2010

Posts: 90

Status: Offline
Post #18
Let me no how it goes mate
Posted 27th Jan 2013 at 22:18
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scotzman

Seasoned Pro

Location: Dundee

Registered: 24 Jun 2011

Posts: 1,408

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Post #19
fraserd007 wrote:
Ive noticed the noise only appears once the engine is upto temp......


bottom endNo

________________________________________

'90 1.6 205 GTi, '98 306 GTi-6
Posted 27th Jan 2013 at 22:23
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #20
Bottom end is not the problem I know that much!
Posted 28th Jan 2013 at 11:56
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mechanical_repairs

Seasoned Pro

Location: leicester

Registered: 10 Jan 2005

Posts: 12,122

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Post #21
Check the cam pullies as the early three bolt fixing ones have been known to crack and cause a noise just before self destruction.

Carl

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Posted 31st Jan 2013 at 20:18
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fraserd007

Newbie

Location: Long Eaton

Registered: 30 Dec 2012

Posts: 17

Status: Offline
Post #22
Thanks checked that also, everything looks fine apart from the vac pump when i put a screw driver to it and my ear,im sure the noise is from there! Does anyone do a blanking plate for it? Would the brakes be ok with just the manifold vac? thanks
Posted 1st Feb 2013 at 19:52
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #23
The vacuum pump is a common place for rattles, they have been failing for years. Yes

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 1st Feb 2013 at 21:50
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eliotrw

Seasoned Pro

Location: Southwark

Registered: 18 Jul 2010

Posts: 4,864

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Post #24
Am i the only person with GTi-6 hypochondria?
Everytime I see one of these I'm like SO THATS WHAT THAT NOISE IS!

________________________________________

Ex- Phase 3 China GTi-6 T-Reg
Posted 1st Feb 2013 at 22:11
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #25
You are the new Justin Accurate. Yes

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 1st Feb 2013 at 23:46
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