X16XE.Adam
Member
Registered: 6th Dec 09
Location: Oxford
User status: Offline
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Hi all,
My corsa sport 1.6 has been using quite a bit of water lately and seems to be burning water as there is white smoke from the exhaust, so I done a compression test today to check to see if the headgasket has gone and I got these results :
Cylinder 1= 15 bar
Cylinder 2= 14.2 bar
Cylinder 3=16.1 bar
Cylinder 4= 15 bar
They all seem to be ok to me so it doesn't look like the headgasket has gone. Has anyone got any other idea's? I thought maybe the head is cracked?
Thanks Adam
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DERV-POWER
Member
Registered: 13th Sep 09
Location: Greenfield, Flintshire
User status: Offline
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when the engine is cold remove header tank cap then put back on , then start engine run for 2minutes,turn engine off and remove header tank cap if any pressure is there ,the headgasket has failed
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X16XE.Adam
Member
Registered: 6th Dec 09
Location: Oxford
User status: Offline
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There's no pressure in the expansion bottle after running the car for 4 minutes from cold
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Cossie
Member
Registered: 17th May 02
User status: Offline
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go for a run with car or have someone to drive you car and follow him to see if water is coming out of the exhaust. Some water and vapor in the morning is Ok when cold.
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X16XE.Adam
Member
Registered: 6th Dec 09
Location: Oxford
User status: Offline
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Well when I done the compression test, I got the engine up to temperature first, it didn't struggle to get there, only took about 7 minutes to get to 90 on the gauge. When it was up to temp it did start smoking very lightly on idle, but when I held it at about 2000rpm it started blowing white smoke quite a bit.
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Cossie
Member
Registered: 17th May 02
User status: Offline
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you should do a compression test on cold engine first.
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X16XE.Adam
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Registered: 6th Dec 09
Location: Oxford
User status: Offline
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I've alway been told to do it on a warm engine?
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
User status: Offline
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A compression test will only tell you if the gasket is gone between cylinders or from the cylinder to the edge of the head - it won't tell you if it's gone between the oil and water ways
[Edited on 16-05-2011 by alan-g-w]
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combat corsa
Member
Registered: 16th Feb 09
Location: eastleigh (southampton)
User status: Offline
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do a leak test through the coolant bottle. get it up to running temp turn it off undo cap carefully lol then test it just dont suck up any liquid
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X16XE.Adam
Member
Registered: 6th Dec 09
Location: Oxford
User status: Offline
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quote:
Originally posted by alan-g-w
A compression test will only tell you if the gasket is gone between cylinders or from the cylinder to the edge of the head - it won't tell you if it's gone between the oil and water ways
[Edited on 16-05-2011 by alan-g-w]
But surely if it's gone between the oil and water ways then it wouldn't be burning water through the engine and smoking white at the exhaust? It would just make the oil cap mayo. But there is no mayo on the oil cap.
I'll have to get hold of a leak down test Comabt, thanks mate 
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