[trackday_prep] Paul's Gti6

[rubyna 4 1 Cars]

Gutted for you Paul, be carefull with head skimming as there is hardly any space between piston and valve anyway and if it has had a skim before now it could turn out costly. Since doing the conversion have you fitted a high pressure header tank cap? if not id get that done aswell. Mines still off the road with a shot servo, waiting for the postman to bring it to me then i have the problem of finding a garage willing to fit it. The ones ive been to so far have seemed a bit scared off cos of the clearence. I thought there was a recession on so you think theyd be glad of the work, it costs what it costs i aint shy just fcuking fix it and give me the bill!! Surely that aint too much to ask ?

Anyway good luck with getting yours sorted mate that grin will soon be back for you and me hopefully..

Luke..

Edited August 8, 2009 by rubyna

[Paul_13 212 1 Cars]

has it always sounded bad?

 

mine dont sound healthy, but they the exmanifold has cracked again..oops

 

if it's gone into the red, it may need attention

 

 

nope not on track...lol was playing with a mr 340 evo 8, i got past..lol nice little battle too

 

I've only realised it recently as its only been running for a few days (in total).

I think it was just on its way out when the previous owner sold it and has got progressively worse, resulting in total failure today.

 

^was that in your sierra or escort

 

 

Gutted for you Paul, be carefull with head skimming as there is hardly any space between piston and valve anyway and if it has had a skim before now it could turn out costly. Since doing the conversion have you fitted a high pressure header tank cap? if not id get that done aswell. Mines still off the road with a shot servo, waiting for the postman to bring it to me then i have the problem of finding a garage willing to fit it. The ones ive been to so far have seemed a bit scared off cos of the clearence. I thought there was a recession on so you think theyd be glad of the work, it costs what it costs i aint shy just fcuking fix it and give me the bill!! Surely that aint too much to ask ?

Anyway good luck with getting yours sorted mate that grin will soon be back for you and me hopefully..

Luke..

 

Where do you acquire a high pressure expansion cap from?

I bought one from Halfords that held pretty well, the old cap had a big split in it and did not hold any pressure at all.

Edited August 8, 2009 by paul_xiii

[rubyna 4 1 Cars]

Dan done my conversion so i cant really say where he got it from drop him a pm or maybe Miles may stock them

either person will point you in the right direction though.. HTH

[gti-si 0]

Really sorry to hear that mate, was going so well. Glad to see it's not phased you though! Sure you'll have it back on the road asap. Really make's me want to get my coolant system sorted now! Think the expansion cap is key, if it doesn't pressurise properly it'll boil the coolant I guess, so I'm gonna try and get hold of a higher spec cap, I'll let you know where I source one from.

 

Atleast you'll know that your head is in A1 nick when your done. Mean's you can get on with building the 88mm cranked block and not worry about a head if you know it's all good.

 

Good luck getting her sorted though mate. Watch those bloody valves timing her up!

Edited August 8, 2009 by gti-si

[Paul_13 212 1 Cars]

Crooksygti off the 306 forum is a c*nt! Blatantly does not have 67k on the clock.

 

Please let me know Si, would be very interested

[Paul_13 212 1 Cars]

Just took off some of the oil breather pipe and it is thick with mayo.

 

Just got to time the engine whip the belt off and take the head off, easier than it sounds as its jammed in the engine bay

 

I wish crooksygti would of left the old pipes on then I would of seen the headgasket problems...

[gti-si 0]

That's probably WHY he took them off in the first place! I doubt he wanted to sell them! You nearly got the head off now then, just stuck in the bay? I'd get the M/C off if you haven't already.

 

Get some pics

[Anthony 1,000]

My question is: if the head has come off a healthy engine, will I need to skim the head?

Get it checked for trueness, and skimmed if required, as a matter of course - really is a false economy not doing so, especially when you've no idea how economical with the truth the seller is being.

[2052006 10]

That really is bad luck Hope fixing it is straight forward enough. Re the expansion tank cap - does anyone know if the cap off a xsara vts rad (or gti6 I presume) is good enough? This is what I'm using, but some coolant (only a very little) seems to be coming out from somewhere - haven't worked out whether it's from the actual cap or the little "overflow" bit (on a phase 2 tank).

[Paul_13 212 1 Cars]

Right P!SSED off is an understatement now.

 

2 of the headbolts are rounded and 2 of the bolts were loose.

 

I've gone too far now to be giving up with this, seriously at the end of my teather though.

 

Whats the best way of getting the bolts out?

 

Angle grinder or

angle grinder?

 

The head is now scrap as I went crazy with the hammer, so f()ck the head it can come if in a couple of pieces

 

:angry:

 

[gti-si 0]

If the cap's the problem it will come out of the overflow. The overflow is on the other side of the cap seal, when the pressure is too great for the spring, it pushes the seal up allowing coolant to leave through the overflow. Using a higher rating expainsion cap means the spring rate is higher, thus it need's more pressure to push the seal up. Going on that would of thought a GTi6 cap would be ample?

 

What actually varies the pressure other than the pump? Does the way the system is plumbed affect the pressure of the system?

[gti-si 0]

It always get's darker before the dawn

 

Absolutely shocking that he's sold it in that state. He's obviously realised it's blown the HG and then had a halfarsed attempt to sort it, in doing so f***s the bolts then decided to sell it! He hasn't even had the decency to tighten up the botls he's undone.

 

Gutted again for you, just a load more hassle and s*it you don't need. Still, atleast you've got another head to put on.

[Anthony 1,000]

Right P!SSED off is an understatement now.

 

2 of the headbolts are rounded and 2 of the bolts were loose.

 

I've gone too far now to be giving up with this, seriously at the end of my teather though.

This is sounding more and more to me like the previous owner of this engine knew about the headgasket, went to fix it and started removing the headbolts, and then proceeded to round a couple of them off. Certainly it would be the obvious reason why the was blown when you got the engine, and why the headbolts are loose and rounded.

 

I'm not surprised that you're angry. I'd be livid frankly, but I guess you've had the engine too long to be going back to the seller?

 

Hate to say it, but if money isn't too much of an issue, I'd be looking to buy another engine that you can see running first, and selling this one spares or repairs. If you don't need the management or manifolds, you can probably pick up a complete good engine for £250 or so.

[Paul_13 212 1 Cars]

I've had the engine coming up to 6-7 months now, bit too late to do anything about it.

 

I'm going to try and have a go with the angle grinder during the week and see what happens.

 

I'm picking up a new block/head/sump and oil pump at the weekend for the 88mm conversion, looks like I wont be doing that.

 

Are piston rings alright to use again on a different block?

[rubyna 4 1 Cars]

Im prety sure my cap is 20 or 25psi? i cant go and check as its in my local garage while they "decide"wether to fit my new servo

or not!!!

Paul i thought my luck is s*it but yours mate!! So whats the crack, i take it you have a new head to go on there allready

then? like Anthony said get it all cheked out before fitting it mate as it could possibly save you a lot of aggro again..

[EdCherry 34 1 Cars]

If your picking up all this new stuff for the 88mm conversion why dont you just go for that? perfect excuse really, yes its money but its more grins!

[Anthony 1,000]

I'm going to try and have a go with the angle grinder during the week and see what happens.

My main concern would be that you are going to get swarf everywhere trying to angle grind the head up enough to get the head off the rounded headbolts - I'd be trying to drill the heads off personally, as atleast that won't generate too much swarf. I'd still look for another engine though if you can afford it.

 

I wouldn't reuse piston rings that have mated to one engine on another - sounds like a receipe for blowby and poor compression to me frankly.

[gti-si 0]

+2

 

I know it's a pain in the arse but there's nothing to suggest the bottom end is worth putting a new head on. I know it seems alright, but you can't perform a compression test so you won't have a great idea. I guess if you inspect the bores and check the bottom end with the sump off, then if all is well stick the head on you would be OK. But in that time, you could well get your 88mm converted block built, it won't take you too long, it's just the aspect of money.

 

Atleast then you would 100% know it's all good though, and I know from experience this counts for 40% of your grins, rather than waiting for it to erupt into a mound of schrapnal

 

Re the pressure cap.

 

The Gti6 after a quick look into the service manual uses a 1.4 bar, so roughly 20 P.S.I cap. I don't know what the original 205 one is, need to find out.

 

What I may do is make a small recovery tank fed from the overflow, that way, if it does spit coolant out it will go straight into a tank, then when it cool's it'll syphen the coolant back into the tank. Just an idea. Anyway, if you want, start a new thread but were going off topic from Pauls' mysery here

Edited August 9, 2009 by gti-si

[Paul_13 212 1 Cars]

Few pics:

 

All the breather pipes are like this and worse

 

Inlet off before having a go at headbolts and cambelt off

 

The water pump has 127 written on it, will this be the model or how many teeth it is ment to have on the cambelt?

 

 

Is this thermostat the right way round lol I know it sounds silly but I dont want to bugger anything up. Also it had a rubber seal supplied is this neccessary?

 

 

Also need a 8v thermo stat housing as mine has a nice big hole through it

 

Really on the fence here about what to do...

Edited August 9, 2009 by paul_xiii

[Spiky 37]

who fitted the inlet with the blue stuff?

 

thats not ideal (IMO) i just grease mine a touch and fitted new PUG gasket

[Paul_13 212 1 Cars]

That would be me Spiky, it's one of those PTFE gaskets from the 306 forum.

Will use grease in the future

[Spiky 37]

ok, the prolem is that the blue stuff would have gone inside as well as out side, so your engine has eaten some

[EdCherry 34 1 Cars]

ok, the prolem is that the blue stuff would have gone inside as well as out side, so your engine has eaten some

 

Depends if too much was applied and if it squeezed into the inside of the inlet.

[Paul_13 212 1 Cars]

What kind of damage would this do or would it burn off?

 

Advice from the 306 forum for you...

[Spiky 37]

it "should" have burnt off, but injecting stuff into the engine that should be, is never a good thing