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Author Subject: Great, just fcuking great!
birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #1
Built my new forged engine up, spent the last 4 days stripping it all down, making it all look pretty then building it back up and the twating thing is tapping its tits off Angry

Not best please, esp when im going to have to spend more time and money fixing it, and ive got to bed the engine in for 1k before mapping on the 27th Sad

Not realy sure what to do with the head, get another one reconed properly, or just reuse my head from my old engine ive just taken out.

Dan

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Dan
Posted 6th Aug 2010 at 23:48
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bobdylan_55

Seasoned Pro

Location: derby

Registered: 28 Mar 2009

Posts: 1,466

Status: Offline
Post #2
no bother getting it reconed, just get a known working one.

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309 GTi6-T
Posted 6th Aug 2010 at 23:52
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simonjames

Seasoned Pro

Location: Whitland S.Wales

Registered: 23 Nov 2004

Posts: 6,219

Status: Offline
Post #3
I'd go with the 1 off the other engine that you know isnt a tapper even if its just for the running in period and mapping then when funds are a bit healthier maybe do the head with some porting

p.s not sure if the charged engines need porting

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Posted 6th Aug 2010 at 23:56
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CUJ

Seasoned Pro

Location: Southampton

Registered: 18 Apr 2006

Posts: 22,218

Status: Offline
Post #4
Oh no Dan, that is seriously bad news Sad I'd do as the others suggest and use a known good cylinder head.

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340 horses
Posted 7th Aug 2010 at 00:09
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fletch

Track Head

Location: The nearest Shell garage

Registered: 12 Jun 2004

Posts: 12,273

Status: Offline
Post #5
Did you time it up wrong or something or is it just the lifters lacking oil?
Posted 7th Aug 2010 at 01:38
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #6
I dont think ive timed it up wrong, i went over it 3 times, and it all seemed fine.

I did think it was the lifters, but after running it for a bit, it didnt get any quiter, and the noise was more promenent when the revs were increased, and its pretty loud aswell.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 7th Aug 2010 at 02:03
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rwgti

Seasoned Pro

Location: Yorkshire

Registered: 08 Jul 2008

Posts: 1,727

Status: Offline
Post #7
SHHHHIIIITTTTT!!

Thats not good mate, gutted Sad

If you know the other heads a non tapper id fit that.Hopefully be working ok for silverstone though Smile

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Posted 7th Aug 2010 at 02:10
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webster

Seasoned Pro

Location: Colchester

Registered: 20 May 2007

Posts: 2,059

Status: Offline
Post #8
I know how you feel bro...

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cress87 wrote:
I'm stopped for speeding on a daily basis but now the police are aware that I live for the 306 they dare not interfere, just sit in their cars quaking as I drive past.
Posted 7th Aug 2010 at 02:21
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fletch

Track Head

Location: The nearest Shell garage

Registered: 12 Jun 2004

Posts: 12,273

Status: Offline
Post #9
Did you turn the cams independently, or used a slipped pulley perhaps?
Posted 7th Aug 2010 at 03:11
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #10
I turned the cams independently yea, i have a lightweight crank pulley aswell.

I did forget to time the crank pully when i put the head on, so the pistons were touching the valves when i rotated it to try and time it, but only by hand with the ratchet, so not like i was swinging on them to cause them to bend.

So to make it easier, i took the cam carriers off, let the valves all rest in place, pinnd the crank pully, then did the cams closest to time and tightend the carriers down, the inlet was in the correct place and the exhaust was about a tooth out, so moved it around, pinned it up, then started with the cambelt.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 7th Aug 2010 at 03:31
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mike306

Senior User

Location: Lancs

Registered: 11 Jun 2005

Posts: 532

Status: Offline
Post #11
That's weird, was doing a random google seach before I saw this topic and came across
this, which seems to give a good explanation Wink Fingers crossed things will go better next time Thumbs up

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High boost '6 for weekends
406 2.1 Executive for weekdays
Posted 7th Aug 2010 at 04:35
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ablister

Senior User

Location: fife

Registered: 30 Oct 2005

Posts: 522

Status: Offline
Post #12
when the bottom is timed up, the pistons are in 'safe mode' ie half way up/down the cylinders therefore valves will never touch pistons if they are rotated on their own

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306 rallye, Richard Longman engine

rc10gt
Posted 7th Aug 2010 at 17:15
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #13
ablister wrote:
when the bottom is timed up, the pistons are in 'safe mode' ie half way up/down the cylinders therefore valves will never touch pistons if they are rotated on their own


Yea, hence why they did touch when the bottem pully wasnt timed up and the head was put on when i did try to time it all up.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 7th Aug 2010 at 17:22
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stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #14
You need the pistons halfway down the bores Dan, and then put the head on already timed up...Yes

The fact that the valves were touching pistons is bad enough, the fact that you have turned the cams independantly tells me the valves have tangled unfortunately. I found out the hard way, many, many years ago now.....as al4x will never let me forget....LOL

Stan.

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Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 7th Aug 2010 at 23:44
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline
Post #15
like stan said;

birk wrote:
I turned the cams independently yea.


ERIC!

Doh

the valves on these engines are big enough to catch each other.

if you haven't run it for too long, and they aren't banana shaped you may get away with just a new valve not a guide as well.

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Posted 7th Aug 2010 at 23:49
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simonjames

Seasoned Pro

Location: Whitland S.Wales

Registered: 23 Nov 2004

Posts: 6,219

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Post #16
quote:
quote:




the valves on these engines are big enough to catch each other.



fook yeah that hadn't entered my head

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Posted 7th Aug 2010 at 23:57
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline
Post #17
the inlets are bigger on the XSi too, the angle they're at and the lift they run at in the gti6 doesn't help, the xsi has a bit less lift but they'll still catch.

the stems are only 6mm.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 7th Aug 2010 at 23:59
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birk

Seasoned Pro

Location: Doncaster

Registered: 24 Oct 2005

Posts: 7,032

Status: Offline
Post #18
I turned the cams when the head was off, i made sure they didnt touch.

Maybe they touched when i took the cam carriers off, that seems like the only way i could have messed it up, i swear i did the cambelt and timing right.

The pistons would be halfway down when the crank pully is pinned up right ? im sure i had them half way when i put the head on to start with, but clearly had it out when it wouldnt time up.

________________________________________

Dimma + Gt35 turbo = Ninja
Solid rear beam mounts £130
07889376885
Dan
Posted 8th Aug 2010 at 00:22
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