Butler
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Registered: 2nd Jun 05
Location: London
User status: Offline
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I think my head is cracked  Its looks like water has leaked into the rocker even after the gasket changed. Its not firing on the 4th cylinder, not sure if that has any affect. Its one thing after another Not driven my rallye for nearly 2 months now. Just got paid and instead of buying things i want to buy for it im paying out just to get it working. *cries*
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jr
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Registered: 20th May 02
Location: Kent
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the problem ith owning a 12 year old car, things break
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Jake
Member
Registered: 24th Jan 05
User status: Offline
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did you get the head skimmed when you replaced the gasket?
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Butler
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Registered: 2nd Jun 05
Location: London
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No, we sanded it down. Rob said that would be ok?
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Jake
Member
Registered: 24th Jan 05
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sanding it down would only clear up any stuck on gasket material
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Butler
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Registered: 2nd Jun 05
Location: London
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Yeah. We only did a visual check over to see if it was warped at all but it looked fine. Cant see as thats why water would be getting in. May just be old water still in there from before?
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Butler
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Registered: 2nd Jun 05
Location: London
User status: Offline
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Then again the valve isnt even firing, if it was bent it would at least fire wouldnt it? Compression rate is 1 bar
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jr
Member
Registered: 20th May 02
Location: Kent
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could be sticking ???
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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whats the compression on the other cylinders?
and how did you check it wasn't bent? mine didnt look bent, but it really really was.
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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Talking about the valve rob? The valve is sooty, unlike the others which look clean.
The compression on the other cylinders is 11 bar average.
[Edited on 07-09-2006 by Butler]
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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no, im talking about the head.
the engine overheated yes? its likely that the head is warped. it might not look it, but it probably is.
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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Oil temp was sky high. We didnt exactly measure it. What sort of a place would I be able to get it skimmed? Port and polish worth it? How can I check if its cracked before I pay to get any work done?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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to be honest, i wouldnt bother having anything done to it other than a skim, because you dont know the problem.
also, did it lose all its water on the track?
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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yes most, if not all
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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yeah, head will have warped then.
get it skimmed and pressure tested.
or try to get another head, they cant be that expensive for an 8v
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Butler
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Registered: 2nd Jun 05
Location: London
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Its an alloy block, so more likely. How much is skimming? How can I buy a head and not be sure it isnt warped though? Or how I can I get my head skimmed knowing it might be cracked? Its a gamble.
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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get it pressure tested, then skimmed if its ok.
skimming will be about 15 quid.
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Butler
Member
Registered: 2nd Jun 05
Location: London
User status: Offline
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Pressure tested? How much is that? If I have it skimmed wont I need a thicker head gasket? Would this have any affect on the cylinder which isnt firing?
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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no idea how much it would be, but it wont be expensive.
no, a normal HG will be fine.
if the head was warped, yes, it might fix it, and make it run...
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lee mitchell
Member
Registered: 26th Jan 01
Location: kent...drive's: eveyones conversion cars hard lol
User status: Offline
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last time i had a skim and pressure test it was about 75 quid with vat etc. if the compression is only 14psi roughly it could be a bent valve. mostly they dont have any compression when ive had bent valves thou
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ed
Member
Registered: 10th Sep 03
User status: Offline
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quote:
Originally posted by Butler
Yeah. We only did a visual check over to see if it was warped at all but it looked fine. Cant see as thats why water would be getting in. May just be old water still in there from before?
When a head is warped it takes less than a mm to bugger things up. A visual check won't suffice.
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SVM 286
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Registered: 13th Feb 05
Location: pain
User status: Offline
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quote:
Originally posted by jr
the problem ith owning a 12 year old car, things break
I own a 16 year old car that I thrash mercilessly every day.
Nothing has broken yet. 
Just owning a car full stop is the problem Jimbo. 
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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If I were you I would save the £100 they charge for a pressure test and the £50 for the skim and source a second hand head, Skim that then fit it with an uprated headgasket
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Rob R
Member
Registered: 31st May 03
Location: Kent
User status: Offline
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If i were you James i'd buy a mountain bike 
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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At least he didnt break it by torque steering it into a kerb/armco barrier 
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