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Hi (first post!),

I've just had my GTV 2.0TS die on me; lost power at high revs and had a loud tapping noise at anything over idle. It then struggled to turn over - seemed like the battery was dead. Took it to garage and was told the head gasket had gone and water in the cylinders caused pressure to bend the valves(?!)

Before this happened I never noticed the temperature do anything other than it usually does, and the engine has been running sweet - its only done 50k (1999). But I did get an induction kit fitted last week.

Doesn't seem likely for an induction kit to cause a problem like this... but could it be a factor in blowing the head gasket?

Anyone know what sort of price I should expect to pay for fixing this, incl new valves? Can they bend through something like this happening? Do HG's usually go on GTV's? I was quoted around 800+vat... seems a lot..? :(

Any advice welcome!
 

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Welcome to the forum - like me you have joined because of a problem - I'm still here two years later, it's a great place - hope you like it.

Without seeing it it is difficult to say. If they took the plugs out and span the engine and got a face full of water (happened to me with my son's Golf) then the diagnosis is possibly accurate. Even then, in my son's case there was no valve damage.

About a grand is OK (incl VAT) if the head needs reconditioning and valves replaced but I'd pay extra for a cambelt, tensioner and variator change at the same time - it's got to be stripped down that far anyway.

Good luck,

Paul
 

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That's a bummer..!

The induction kit wouldn't make any difference to the head gasket.

Are your sure the head gasket is knacked? Your should get it confirmed by a coolant exhaust-gas check. If water did get into the cylinder you could have suffered hydraulic lock. Basically the piston tries to compress the coolant, rather than the inlet charge, and the pressure is often enough to bend the con-rod (not the valves as the valves never open into a compressed space).

So it could be worse than it sounds on the face of it. I hope not.

£800 would be reasonable, depending on what the damage is. At the very least your mechanic will have to take the cylinder head off, test it's not warped (skim it if it is) and then re-assemble every thing. If he also has to use new valves, then the cost goes up pretty rapidly.

I'm worried you may have damaged the bottom end too. You must get the crank bearing shells inspected as they are liable to have been scored or slipped during the failure. If swarf gets into the oilways, the crank will fail in a few thousand miles. Best to sort it thoroughly now.

Ralf S.
 

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Hmmm, I agree with Ralf, pressure cannot bend the valves because they are closed. Are you sure the cambelt hasn't gone leaving the valves open to be smacked by the pistons :(
 

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Discussion Starter #5
Thanks for your advice.

I took a look at the engine yesterday and the oil looked bit creamy. The mechanic only got as far as taking the top cover off to see the camshafts and it was obvious the head gasket had gone :(

The head was/is coming off today and being sent somewhere to check it out and skim is necessary, so we'll have to see what damage is done. Mechanic seems convinced (by listening to it when it came in) the bottom end is ok. A compression test was done and 2 of the cylinders had no pressure. I'm not exactly sure what that means, but something is wrong ;)

If some of the valves are damaged, would it be best to get all of them replaced?

Some good news came out of this; the cambelt had a very slight tear in it - despite only being less than a year since it was changed! So I suppose it's luckily it wasn't that what broke!

At least I know I'm not being completely ripped off with expected cost of around a grand :(
 

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The compression test would indicate whether something was wrong with the cylinder, for example, a broken piston ring, burnt out valve etc.

Anyway, sorry to hear about your problems, I hope you get it fixed soon.
 

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You didnt drive through a puddle with your induction kit did you?

Drawing water into the cyliders that way?

Either way the damage and the repairs are the same.
 

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Discussion Starter #8
cj romeo, no - didn't drive through any puddles. it had been dry since it was fitted..

just wish the garage would hurry up and fix it! :)

cheers.
 
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Two cylinders will have no compression if the gasket is blown between them, this causes a gas knock (possibly the 'tapping' sound you heard) and loss of power as you are effectively running on the two 'good' cylinders. Water (or coolant) is probably a result rather than the cause. The gas travelling between the cylinders can wear a groove which is why your head probably needs skimming. None of this explains why your mechanic thinks there are bent valves though!

Good luck with the repairs.
 
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None of this explains why your mechanic thinks there are bent valves though!

I expect he's assuming that the lack of compression means the valves are bent, your explanation sounds more likely though. Hopefully it shouldn't be as dear as expected.
 

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Two cylinders will have no compression if the gasket is blown between them, this causes a gas knock (possibly the 'tapping' sound you heard) and loss of power as you are effectively running on the two 'good' cylinders. Water (or coolant) is probably a result rather than the cause. The gas travelling between the cylinders can wear a groove which is why your head probably needs skimming. None of this explains why your mechanic thinks there are bent valves though!

Good luck with the repairs.
ah sould have got it skimmed the last twice oan the 1.2 bravo head.Although my eyes are dim the gasket lookd not to bad.

This time gasket gone between the cylinders and a v notch oot of the heid.


?

Can the land on the head between the cylinders be tig welded or otherwise to build it up so as to be skimmed.

Pomeo

I know watshots awa ..but any one else any experience guidance.

OOPS thoughtthat this was in the engine comparment section no the spiders wan.apologies but if onywan kens the answer.
 

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Some heads can have a fair bit skimmed off to clean them up, but yes they can be welded up quite easily. How did you find this old thread :lol:
 

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Come on guys a twinny engine in good running order can be purchased for £250 on ebay.Give me £500and i could buy another gtv with a good engine.If you ask a good engineering company to rebuild a twinspark engine or cylinder head the job should be good but at a cost.Therefore its not in my opinion the most cost effective way of repairing the car.
 

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Some heads can have a fair bit skimmed off to clean them up, but yes they can be welded up quite easily. How did you find this old thread :lol:
:):cheese:weeel wan dubble 6 a cunning ittle function cawd the search button.;)wish add fun this sooner .did my dughters wee fiat bravo head 3 times noo each time jist sticking a new heid gasket on it.IF I had had it skimmed when it first failed 2-3 years ago i'd only have done it once but never had ony experience of skimming heads.Ooor local Alfa specialist stuck the head into a local head skimming place but they said it was too far gone.since got a replacement head for 100 squid.Rather than ditch the auld wan I reckoned it may be salvageable to save the planet a wee bitty.I also placed here

http://www.alfaowner.com/Forum/engines-ts-jts-jtd-and-v6/136042-head-skimming.html
but got a better response here.

Come on guys a twinny engine in good running order can be purchased for £250 on ebay.Give me £500and i could buy another gtv with a good engine.If you ask a good engineering company to rebuild a twinspark engine or cylinder head the job should be good but at a cost.Therefore its not in my opinion the most cost effective way of repairing the car.
ah ken whit yee are saying see mair....but this wee motor has been so neglected over almost 10 years and I could count on one hand the times it has let us down.Puting into a garage it would be written off years ago.But for the sake of a 6 pound gasket and a few hours of my time its repaid itself time and time again.So to me cost disnae cum itae it..its a wee bit of returned loyalty.One day it will become uneconomic to do but till then I'll do my bit for it.We have had it since brand new and hasn't needed much doing to it other than this.The wee 1.2 bravos have a bad reputation for overheating due to the design of the head and even well maintained ones sufferr too.
The person I bought the head off of was hit for a £600 bill when her head gasket went.Now that to most folk would be write off time.
Thanks for your help guys ....Only AO has the answer.

The task is finding someone with the skills to do it.

Pomeo
 

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Am i confused or should i be drunk to understand the flow of this thread?
Perhaps OR just another look at yer beaver see more.;):D:cheese:
It;s jist that whatfor was bang on in his description...see the fotie.

Do you know anyone that fixes cylinder heads like this
Foto in linked fread as its the engine section.

Pomeo
 
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