Chadicles
Member
Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
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Hey just bought a cheap project corsa, which has already had a c20xe redtop enigine fitted! everything seemed fine untill i noticed the coolant was a chocolate milkshame colour and cosistancy. came to the conclusion it was oil in the water, so i checked oil filler cap and it was clean no yellow crap, then checked the oil n it was half way on the dip stick. i remember when i bought the car the oil was full and had covered around 100 miles untill i found the fault. the next day i started the car and had it running for no less then 10 mins while parking it up on the drive, checked the oil a while later after the engine had cooled and it was on the minimum mark on the dip stick. so i came online n started reading about gm heads havng a common fault with oil ways and waterways cracking between them but i feel its alot of oil to escape through the crack in 10 mins.
This engine is a early redtop with a dizzy cap, from wat i can make out it looks like a gm head not a coscast, i fink the donner vehicle was a g reg calibra. No idea on the engine mileage.
If Anyone has any opinions or past experiences that could help it would be a great help!
Chad.
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j.e.maltas
Member
Registered: 14th Nov 07
Location: Harrogate
User status: Offline
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yeh the gm heads do break. mine has done same thing just find a costcast and problem solved.
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andyc1234
Member
Registered: 7th Nov 06
Location: Lancashire
User status: Offline
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get it pressure tested at any garage. will tell you if its hg or not
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haydenover
Member
Registered: 17th Jul 07
Location: Portsmouth
User status: Offline
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quote:
Originally posted by j.e.maltas
yeh the gm heads do break. mine has done same thing just find a costcast and problem solved.
i have a coscast head for sale cheap has bronze guides etc?
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johnhara1
Member
Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline
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the head on mine was porous, drove it for about a yr like that and it didn't lose that much oil.
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Chadicles
Member
Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
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quote:
Originally posted by johnhara1
the head on mine was porous, drove it for about a yr like that and it didn't lose that much oil.
ha no mine guzzels oil like 3/4 of the dipstick in under 30miles lol hope it's just the head gasket then I can chuck the spare engine back 2gether n sell it
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philip2
Member
Registered: 1st Oct 06
Location: n.wales/chester
User status: Offline
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im looking at doing the sleeve mod as there arent that many people who do the porous mods. and i know the place down the road from me used to do the sleeve or externally for £250, but i think thats when the engines were pretty new
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johnhara1
Member
Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline
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there are tutorials floating about somewhere, just do it yourself if you're capable of taking the head off, you could do the sleeve inside the gallery.
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BeArDy
Member
Registered: 7th Aug 00
Location: Manchester
User status: Offline
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Or i will Sleeve the head for £60 plus shipping
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