F##CKING HEAD GASKET HAS FAILED

evocarlos

Stupid Bollocks
Staff
#22
easy peasy lemon squeezy
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I did have to have the 6.000mm ball bearing pushed thru them after fitting to hone them my local machine shop did it when I had the head skimmed
the bum part is the smaller seals I had considered contacting Trevor at Andrews precision to get some normal style phosphor bronze guides made up so the use of the normal seal could work or I guess you could fit the supertech ones upside down
 
#24
Is this normal for a head gasket open at the corner?

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I know it is open in some places but im sure it is closed at the corners
I had the head on and took it off again to double check the valves at no.9 carrier cap. Not sure if i damaged the gasket or not cant remember how they look.

The stuck valve i had was a bent valve apparently, which caused the guide to crack

Anyway got that fixed for a tenner which i was pleased with, To buy a guide itself cost i think 8 quid minimum, I took them a valve they supplied and fitted the guide
 
#27
Is it correct that in a new gm chain kit you are not supplied the 4 torque head bolts that are inside the head at chain end . ?

I cannot seem to find them but I have the others that I can re-use
 
#28
That's correct - they are not supplied in the timing chain kit and unfortunately have to be purchased separately.

If you are looking to renew then Part #: 24407225 - Screw, Cylinder Head to Cylinder Block x 4 (tighten to 35 Nm / 26 lbf ft).

Hope that may help. :)
 
#29
I also need to know before i put on the big chain

I am a little concerned the balance chain is a little slack i do not know if this is down to not enough oil in the tensioner or something else so i need a few opinions if possible

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And a little video showing movement of chain with tensioner activated, it was twisted and then held in place with a pin in the tensioner holes to hold down plunger


 
#31
to be honest it would be worthwhile replacing it with that much slack
Yes you are right I kind of suspected so
The chain is practically touching the casing

Anyway I've been in contact with vauxhall they say £195 for a new chain kit. For a genuine chain kit on eBay 100 quid

Is it a gamble to go for the Fai kit, to try and get one today. a couple of people have had failed tensioner with these ones I'm sure @davegilbert has been one of the victims.

Or should I hang on a few days for genuine gm off e bay
 
#33
Worth waiting a couple of days and fit a genuine GM one, you won't regret it and you know the job will be a good'un ! :)

Is the main chain OK ?
Yes Kev brand new gm been sitting in a box waiting for me since last Friday
The balance chain is gm also just had too much abuse on and off a few times and twisted about etc

Best to just hang on a bit longer then
 
#34
I reckon so, with a latest spec timing chain kit, balance chain kit and the cylinder head sorted (with new gasket) the car should be good for a few more thousand miles. :)

Incidentally, are you replacing the cylinder head bolts, as Vx recommend this as they are 'stretch' bolts along with the 4 bolts your mentioned above ?
 
#35
I reckon so, with a latest spec timing chain kit, balance chain kit and the cylinder head sorted (with new gasket) the car should be good for a few more thousand miles. :)

Incidentally, are you replacing the cylinder head bolts, as Vx recommend this as they are 'stretch' bolts along with the 4 bolts your mentioned above ?
I reckon so, with a latest spec timing chain kit, balance chain kit and the cylinder head sorted (with new gasket) the car should be good for a few more thousand miles. :)

Incidentally, are you replacing the cylinder head bolts, as Vx recommend this as they are 'stretch' bolts along with the 4 bolts your mentioned above ?
Yes head bolts were replaced from a gm head gasket set
Its only the tork head bolts that are not brand new
 
#37
#38
Hit the post button by accident there damn phone and I cant edit

I thought a couple of bolts would snap cause they were hard to come out, and they were only in about 15min .

So I need to tap the threads so there are not any more problems

What I need to know is the size of tap for the holes is a 5 mm big enough or do I need the 6mm which maybe too big

So if anyone can help with the size that would be good

Or should I mean m5 or m6
 

evocarlos

Stupid Bollocks
Staff
#40
Hit the post button by accident there damn phone and I cant edit

I thought a couple of bolts would snap cause they were hard to come out, and they were only in about 15min .

So I need to tap the threads so there are not any more problems

What I need to know is the size of tap for the holes is a 5 mm big enough or do I need the 6mm which maybe too big

So if anyone can help with the size that would be good

Or should I mean m5 or m6
were you using green permanent stud lock ?
for future reference use blue MED stud lock you wont have any problems
 
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