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Author gm c20xe heads
craig_s
Member

Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
31st Jul 09 at 20:07   View User's Profile U2U Member Reply With Quote

asking this mainly out of curiosity.

has anyone ever seen or had a one of theese heads crack?i never had until mine done it.it cracked from the inlet valve seat to the water jacket.

[Edited on 31-07-2009 by craig_s]
dale87
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Registered: 19th Feb 06
Location: West Mids :)
User status: Offline
31st Jul 09 at 21:42   View User's Profile U2U Member Reply With Quote

I've had a gm c20xe head crack between a water jacket and exhaust port 3. It would leave a huge trail of steam behind me like them planes you see at shows because the coolant was being pumped straight into the exhaust system:
craig_s
Member

Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
31st Jul 09 at 22:33   View User's Profile U2U Member Reply With Quote

yep mine done the same but on cyl no2.

[Edited on 31-07-2009 by craig_s]
philip2
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Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
1st Aug 09 at 07:25   View User's Profile U2U Member Reply With Quote

mates cracked from number 4 and 6 valves on exhaust side out to fire ring on his LET head after melting a piston...well found it out after melting a piston anyway

 
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