Cossie_ray

iTrader: (7)

Hi all,

I had a stage 3 done a few weeks ago at Grove Garage. Been driving the car a few days and I thoght that it is peeking on the boost but not holding boost.

I found out today head gasket has gone

What is a good head gasket for a stage 3 3dr cosworth with a standard head?
I have been looking at these on ebay

http://cgi.ebay.co.uk/COSWORTH-COMET...item3ef4f9180c

I am not sure if to go for a Group A, or multilayer and is it worth fitting ARP stud bolts the same time?

Cheers
Cossie Ray

Rabbit

The YB0611 (group a) and standard headbolts is ok for a "normal" stage 3 imo,but there are different opinions about this for sure,..

JamesH

iTrader: (21)

GrpA or multilayer will both be fine for stg3

big mac

iTrader: (7)

or small turbo escort cosworth gasket as these are better than the group a and have an additional sealing ring on the oil way if using a multilayer you must make sure the head and block are perfectly flat

Cossie_ray

iTrader: (7)

I wonder if these are any good.

So many gaskets to choose from

http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

bpspa

iTrader: (1)

as said its a YB0611 should be fine in my opinion

cossie4i+

iTrader: (15)

Bad luck

But you have the best colour 3dr so not all sad news

Steve

RS500/364

Speak with mark at grove or field motorsport
if you are going to do it youself at leased get the headwork done and advice from your tunner !

Cossie_ray

iTrader: (7)

Ye, That makes sence.

I was just doing some research and getting some advice before I chat to Mark.

Mark at Grove will be fitting it and not me

Cossie_ray

iTrader: (7)

When I picked up the car after the stage 3 it was running sweet and holding boost perfectly. Then a few weeks later I noticed that it was not holding boost so called up mark and took it down today and Mark said Head Gasket it shot.

I know Mark does not like Cometic Head Gaskets

Cossie_ray

iTrader: (7)

Is it worth getting some ARP long stud bolts or just use the standard bolts.

rog

iTrader: (2)

Standard head bolts and YBO611 is all you need, anything else is overkill.

Cossie_ray

iTrader: (7)

Ye, Every one seems that the YBO611 is a good head gasket.

What is the max horse power and Boost a YBO611 can take roughly? or what is recommended.

Cossie_ray

iTrader: (7)

I might just settle for this

http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

rog

iTrader: (2)

Seems ok to me, or better still look on cosworth.info you'll get all the bits there. As for BHP i wouldn't worry too much, easy +400bhp. Had my 4x4 9 years and done 30k and the gasket has never blown. Had it rebuilt recently and the gasket was fine when i took it apart, just replaced it with a 0611 which was in it before, was stg 3 running about 22-28psi.

Cossie_ray

iTrader: (7)

Thanks Rog.

rog

iTrader: (2)

No worries, forgot to mention, depends if you know the history, but when you've got the head off I'd replace the cambelt and tensioner at the same time, or even get someone to change the valve stem seals in the head since it's off. Up to you though, just maybe save you doing it later or if it's already been done then no worries.

Cossie_ray

iTrader: (7)

Car has done 70K on the standard head so I might talk to Mark about getting the head done one time.

tabetha

If the heads done 70,000 the guides will be shagged, they wear terribly on these, so budget for 16 guides, plus any valves that need doing.
There are plenty of 500+ engines running the Yb 0611 gasket, the cometic inlet gaskets are ace, the best steel HG is the single layer REINZ, the one mountune supply(they don't make it) is also very good, but personally would never use a metal gasket.
I use ARP stud and nut kit, but the lengths do need checking for bottoming when installing otherwise if they bottom in the hole before htting the stud shoulder they will lift the threads in the block, if installed correctly they will be fine, I torque my head to 120lbft, leave a minimum of 4 hours and retorque, as head gasket will compress and torque will lossen slightly.
One reason why the yb 0611 is better is due to it's fibrous nature, in that it deals with imperfections in the surfaces vastly better than a metal gasket ever would.
tabetha

TurboShed

My multi-layer one has now been "used" 3 times so far and still holding out on my Stage 3 Cossie, so the extra initial expense has more than paid for itself vs using 3x GpA ones.

Cossie_ray

iTrader: (7)

Thanks Tabetha for the wise words once again

What price am I looking at roughly to get the head done + 16 guides

siscossie

iTrader: (4)

Ive got a group a gasket and a arp stud and nut kit with 355bhp and works well

Cossie_ray

iTrader: (7)

I will have to contact Mark at Grove and see what he recommends

English

I just installed a WRC Multilayer HG. Out of curiosity, what's required to re-use one of them? Re-skim head & block?

Just seems like a lot of trouble to go to in terms of getting the car all back together when you risk the gasket being on its last use.

mechanic28

iTrader: (5)

grp a/st escos one! and standard head bolts chap!

martysmartie

iTrader: (1)

That is no surprise, presumably they didn't know/check you have standard HG, I have WRC multilayer.

Also have you rewired fans/ fuel pump?

Martin

Staffi

iTrader: (1)

YB0611....................As said...........

RS500/364

Best way as mark and Ahmed are very anal as to what to use in there set ups get the head done and long stud arp cracks blocks
do it once and forget then if you want more just change your turbo and chip !

Cossie_ray

iTrader: (7)

Ye, I know Mark and Ahmed are like that

I told him that I wanted to get a few things done and told him that a few people on PF recommended it and he said that is a shit idea and they dont know anything.

When he did the stage 3 I mentioned to him to do the head gasket one time, But he said it dont need it.

Cossie_ray

iTrader: (7)

Thats another thing. I mentioned to him when I was getting the stage 3 done to rewire fans and the fuel pump and he said you dont need it done

martysmartie

iTrader: (1)

Then they don't know what there talking about, do you know for certain your fans actually work otherwise you will be looking at multiple HG replacements. The circuit was sub standard to start with and can not cope with the high current draw demand of the fans, the issue is made worse now from old degraded wiring not to mention having a massive temp span. Nearly all suffered melted fuses, relays etc. The fuel pump has the same scenario as above and if you don't rewire you want a voltage check at the minimum with it under load.

Martin

tabetha

The he's a fucking twat, very simple, as he must be to expect 20+ year old wiring and connections to be at thier best.
Some 3 doors had warranty work which was a fan rewire, as were HG replacement(which is where the group a came from!!).
Even under development there were cooling issues esp during NVH testing.
I have never met the man, and can only go on what I see written here, but seriously if ANY tuner ever said that, on any uprated install I would go elsewhere.
When I'm on the rollers there is a pressure gauge plumbed in by the RR operator, Dave Walker, to make sure things saty as they are, lean off can be seen in emissions though.
tabetha

Char1ie

iTrader: (6)

Mark will have certainly measured the voltage at the pump and checked the wiring - it's one of the first things on his list. If he says there's no need to replace it it's because he's satisfied that it's in good condition. Same with the fans.

Mark is one of the most knowledgable Ford people out there.


Charlie

tabetha

I must admit to being very surprised, and can only assume a misunderstanding or bad comms occured.
tabetha

Char1ie

iTrader: (6)

And maybe "fucking twat" is another example of bad comms?


Charlie

Cossie_ray

iTrader: (7)

I am a very easy going person when I meet someone for the first time.

I bought a cosworth about 6 months ago and I am very new to the seen and my knowledge is very limited and I admit to this. I joined passionford to learn!!!

I have asked many questions on here to learn and understand, And I have got some great responces from members on here and I ran a few things to Mark and all he said is that it does not need to be done

Cossie_ray

iTrader: (7)

Charlie, What do you mean by this??

And maybe "fucking twat" is another example of bad comms?

martysmartie

iTrader: (1)

I thought you were talking about the people who done the conversion and they said it diden't need to be done outright, if Mark checks original wiring and it's fine then thats ok.

Who said it's ok to use the original HG?

Martin

tabetha

I think that was meant for myself, not you, I don't at all consider it bad comms, DID ANYONE NOT KNOW WHAT THIS MEANT ?
Say as you see I say, I wasn't put on earth to make freinds, you have the OFF button charlie.
tabetha

Char1ie

iTrader: (6)

Chill out Tabs. To describe Mark as a fucking twat based on the limited info in this thread is a little harsh.

Charlie