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Author Subject: head gasket
JWP EFi

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Location: edinburgh

Registered: 07 Mar 2010

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Post #1
where can i find a 1.6mm gasket?
Posted 15th Jul 2013 at 22:52
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #2
scoobydoo for an XU 16v engine, but you should never need one that thick.

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Posted 15th Jul 2013 at 22:55
JWP EFi

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Post #3
scoobydoo??
picking up head tomorrow, it has been skimmed flush to marker
Posted 15th Jul 2013 at 23:02
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #4
measure it first Thumbs up


scoobydoo = not a clue.

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Posted 15th Jul 2013 at 23:22
JWP EFi

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Post #5
assuming its skimmed flush, ie no marker left, what gasket can i get away with?
Posted 15th Jul 2013 at 23:24
welshpug!

Capt Pedantic

Location: Bigend, Wales.

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Post #6
no idea how deep the marker is, but 0.2mm +/- 0.05mm is max, from 137mm, hence peugeot selling you a 1.4mm gasket, and a std 1.2mm.

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Posted 15th Jul 2013 at 23:44
bigbadbowen

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Location: Winchester

Registered: 21 Nov 2003

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Post #7
We used a head saver once after having a head skimmed that was unknown ? I can try and find out some details ?

Attaches to the block under the head gasket ? Came with some sort of glue to permanently attach to the block Yes

Buggered if I can remember who we got it from but I can find out Thumbs up
Posted 15th Jul 2013 at 23:49
JWP EFi

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Post #8
ive heard of that before. if it wasnt for this head recently having all new guides, valves and tapetts then i would just bin it and use one of my spares
Posted 16th Jul 2013 at 07:18
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

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Post #9
Can you not deck the block instead?

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Posted 16th Jul 2013 at 09:46
welshpug!

Capt Pedantic

Location: Bigend, Wales.

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Post #10
you can, but that brings in the same issues.

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Posted 16th Jul 2013 at 11:13
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

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Post #11
would another head, cheap maybe with known bent valves
rebuild this head with the good valve setup new stem seals and a seat regrind
much more time consuming but wont that be more stable?

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Posted 16th Jul 2013 at 12:39
welshpug!

Capt Pedantic

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Post #12
I doubt it will take any more time tbh.

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Posted 16th Jul 2013 at 12:42
JWP EFi

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Post #13
after a few hours searching and many phone calls to various suppliers/specialists i can only come up with this, i can easily get a Fibre gasket - 1.4, 1.45, 1.5. 1.55mm for the 8v turbo 406/xantia. Are those dimensions the fitted thickness?
Believe it or not no one in the uk stocks a 1.5/1.6mm MLS gasket, according to PEC, Cometic are no longer producing them, another company said they could get me one but there is a 16 week back log!!
Also apparantly i can use a standard MLS gasket with my head and NOT have valve to piston interferance although i was told the ECU can't/won't retard the ignition timing to compensate for the higher compression ratio. I thought the 6's brain would have been more than capable of dealing with this seeing as its self learning

Anyone care to give me a second opinion? If none of this safely doable then i will have to scrap my freshly skimmed head and build a spare one up
Posted 16th Jul 2013 at 21:15
welshpug!

Capt Pedantic

Location: Bigend, Wales.

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Post #14
yep, a fibre gasket will be fine, I've used a 1.35 and 1.45mm ones where the head had been skimmed right to its limit.

you need to measure your head accurately.

the ecu will pull the timing back, it does have a knock sensor.

depending on the cams you have, and just how much it has been skimmed, I would not advise using a std gasket without valve cutouts, do not believe the others that say they're fine, if it was fine, Peugeot would not bother making a thicker gasket.

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Posted 16th Jul 2013 at 21:21
superchargedblack1997gti6

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Location: guildford

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Post #15
I'm sure Rich W can get them custom made mate?

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Posted 16th Jul 2013 at 21:23
JWP EFi

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Post #16
T16 uses fibre gasket so based on that fact - good enough for me
I was originally planning to fit my 270 regrinds but not much chance of that now
is the fibre gasket's thickness the final fitted, ie, compressed dimension?
Posted 16th Jul 2013 at 21:23
JWP EFi

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Post #17
superchargedblack1997gti6 wrote:
I'm sure Rich W can get them custom made mate?


I didn't think to contact Rich, but what iv'e learned today is that anything like this that needs to be 'custom made' isn't going to be a quick solution
Posted 16th Jul 2013 at 21:25
welshpug!

Capt Pedantic

Location: Bigend, Wales.

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Post #18
all gaskets are listed by their fitted dimensions.

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Posted 16th Jul 2013 at 21:27
JWP EFi

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Post #19
mei, i don't suppose you have any corteco/payen part numbers that i can give to ECP so they can order me one up?
i have 414351P 1.55mm corteco
BY320 1.45mm Payen
Don't know how accurate these are
Posted 16th Jul 2013 at 21:30
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #20
not offhand, there is an online ecat.

but have you measured your head yet?

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Posted 16th Jul 2013 at 21:40
JWP EFi

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Post #21
i tried corteco's cat but it says 'engine not found'. I didn't have time today to collect head from engineers but it was bloody close to the marker so safe to say its now flush, hopfully not past it.
Ive got a set of snap on digital verniers so once i pick it up i will measure it. I feel better now i know there are gaskets available in various thickness's

Posted 16th Jul 2013 at 21:46
JWP EFi

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Post #22
Got my head back today, not as bad as i was expecting, managed to source a 1.45mm gasket via my mate at ECP, annoyingly it won't be here till friday

Posted 17th Jul 2013 at 20:24
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #23
so how tall is it now?

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Posted 17th Jul 2013 at 20:30
JWP EFi

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Post #24
according to engineers its 135.20 so with the 1.45mm gasket i will only be a tad over standard compression.
Head gasket was a lucky pick, i handed ECP a selection of part numbers and all they can find is 1.1mm MLS and a fibre 1.45
Posted 17th Jul 2013 at 20:41
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

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Post #25
135???


Shock




136.8 is the thinnest peugeot say !

________________________________________

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

Bring on the Trumpets.

Posted 17th Jul 2013 at 20:47

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