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Author Subject: 220 bhp head gasket
dav1

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Post #1
uprated my engine to 220 bhp and went pugfest now i think the head gasket has gone. if i take the header cap off then give it a quick rev bubbles cum up it does't do it wen idling. wat you guys think? its one off those rich.w head gasket and aint done 100 mile.

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:30
brownboy

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Post #2
dav1 wrote:
uprated my engine to 220 bhp and went pugfest now i think the head gasket has gone. if i take the header cap off then give it a quick rev bubbles cum up it does't do it wen idling. wat you guys think? its one off those rich.w head gasket and aint done 100 mile.


Have you bled the system correctly?
Posted 28th Jul 2011 at 21:35
mattyrallye

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Post #3
Do you mean it hasn't even covered 100 miles?

Grammar police will be all over you for this thread.

All I can say is from your description (or what I understand from it) it doesn't sound too promising.

________________________________________

Previous china gti6 and Rallye owner.

Now a proud Astor Gti 6 owner.

Missing he BMW already...
Posted 28th Jul 2011 at 21:37
dav1

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Post #4
Plus wat do you guys think of the head gasket repair stuff you put in header tank? my mate works at a garage says he's got sum really good wurth stuff. An it does rev to 7800 if that would make any difference.

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:37
dav1

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Post #5
yeah there's a little bleed nipple by the exhaust.

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:39
gilesy

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Post #6
You know there's more than one bleed point?
Posted 28th Jul 2011 at 21:40
dav1

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Post #7
mattyrallye wrote:
Do you mean it hasn't even covered 100 miles?

Grammar police will be all over you for this thread.

All I can say is from your description (or what I understand from it) it doesn't sound too promising.
Grammar police can do one!

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:41
dav1

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Post #8
Wheres the other one buddy?

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:42
brownboy

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Post #9
top of the radiator and i think there is one more if im not mistaken and have to be done in a certain way

edit here they are

http://www.306gti6.com/forum/showthread.php?id=61418&page=last

Posted 28th Jul 2011 at 21:47
ryangti6

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Post #10
There's one on top of the rad, one on the thermostat housing and the one you mentioned by the exhaust.

Use a bottle in the rad to get the water higher than all the bleed points and you cant really go wrong.

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Ryan
Posted 28th Jul 2011 at 21:47
dav1

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Post #11
OK hope its that. Would that explain the bubbles wen revved up?

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:48
brownboy

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Post #12
maybe if there is still trapped air in there re bleed it and see if it curse it if not i would start to look at how the headgasket was fitted
Posted 28th Jul 2011 at 21:49
dav1

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Post #13
I fitted it. Head was skimmed too cus me an my mate re-built it.

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230bhp 205 gti6
Posted 28th Jul 2011 at 21:52
ryangti6

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Post #14
dav1 wrote:
OK hope its that. Would that explain the bubbles wen revved up?


It could do and hopefully you will be lucky and it's only air in there.

If bleeding doesnt cure it then get it checked properly by a garage Asap as the longer you drive it the more damage you'll be doing if the gasket has gone.
Also I wouldnt put any of these stop leak/ K seal products anywhere near my engine if it were me.

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Ryan
Posted 28th Jul 2011 at 21:57
dav1

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Post #15
OK think it is head gasket so shall I buy another uprated one or get a standard one?

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230bhp 205 gti6
Posted 29th Jul 2011 at 01:25
rallyeash

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Post #16
i'd find out whats causing your HG issue. who did the skim on the head?

do you actually know its the HG gone, have you tried to bleed it a few times? following the guide on here? with the bottle method.

apart from the bubbles why do you think the HG's gone? has it over heated?, down on power, done a compression test?

im running a standard MLS headgasket at 230 bhp and no issues, even if i was running 270 i'd still use a standard one.

whats the spec on the engine btw?

________________________________________

230 hp 2.1 16v XU 205 rallye on jenveysHyper Project thread here
309 3dr K20 Type R
Posted 29th Jul 2011 at 02:00
dav1

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Post #17
The stop light came on at pug fest it was low on water. I let it cool the topped it up. It ran fine for the rest of the day up the hill. its not down on power its just wen i rev it up the head tank bubbles like you put a air line in it.
advice?
cheers
newman ph4's, hi-comp 87 pistons, throttle bodies etc

________________________________________

230bhp 205 gti6
Posted 29th Jul 2011 at 02:08
rallyeash

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Post #18
have a good look at the guide in the FAQ section and bleed it again. recon thats your issue.
is it using water then or was it just low? if you have a air lock in the systemt water level could of dropped because of that

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230 hp 2.1 16v XU 205 rallye on jenveysHyper Project thread here
309 3dr K20 Type R
Posted 29th Jul 2011 at 02:09
bigbadbowen

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Post #19
If the stop light came on then you prob cooked it ? you may have warped the head ???

I doubt the gasket has failed after just 100 miles ??

Have you checked to see if you have a water leak some where ???

Posted 29th Jul 2011 at 02:21
dav1

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Post #20
Stop light wast on long at all. I will be very happy if it aint gone cus I wont have to spend all week end doing head gasket. will try an bleed it again tomoz. but were will the bubbles be cumin from wen I rev it?

________________________________________

230bhp 205 gti6
Posted 29th Jul 2011 at 02:48
owain

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Post #21
Please stop saying "cum", it's really disturbing.

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Posted 29th Jul 2011 at 02:50
dav1

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Post #22
Don't read it then. Unless your a man lover an that's wat goes threw your mind.

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230bhp 205 gti6
Posted 29th Jul 2011 at 02:54
dav1

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Post #23

Post #20
Stop light wast on long at all. I will be very happy if it aint gone cus I wont have to spend all week end doing head gasket. will try an bleed it again tomoz. but were will the bubbles be cumin from wen I rev it?

________________________________________

230bhp 205 gti6
Posted 29th Jul 2011 at 03:02
thelegendofando

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Location: Lincoln

Registered: 24 May 2011

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Post #24
Dav1 chill out!

90% chance it's just air in your system, it will bubble when you rev up because you're increasing the water pressure by spinning the water pump faster.

If you suspect headgasket then presumably you think it's gone between a water gallery and a cylinder. There are two very easy ways to check this.

1, Have a sniff of the bubbles in your header tank, if it smells like petrol then there's something wrong, if not (or you can't make your mind up) then it's fine.

2, Take your spark plugs out, if one looks like it's been steam cleaned (by comparison to the rest)then there's a problem.

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205 GTi6 - work in progress
Posted 29th Jul 2011 at 03:02
brownboy

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Post #25
could it be the block has got a crack in it causing the bubbles?
Posted 29th Jul 2011 at 03:05

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