*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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Anyone had any issues with their c20xe engine getting hot in their corsa. The coolant temp never coes above 98 but the actual engine its self gets bloody hot. I know that the nature of an engine is that they do but this seems crazy hot. Im thinking due to lack of air flow.
Its even got to the point where the inlet manifold bolts are coming slightly loose after a good run and im sure thats because the heads expanding more than the bolts.
Im thinking that i need to get all of the below:
Twin fans (mounted infront of the rad and keep the standard one)
Change my bonnet for a vented one or fit bonnet raisers
Drill holes in the bumpers
Morettes with the inner lamps removed.
Cheers 
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Generation
Member
Registered: 7th Jul 09
Location: Essex
User status: Offline
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Shouldn't need any of that? If bolts are getting loose, ten get new ones and torque them up properly
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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Im gonna use locktight on the bolts but it was just how hot the engine gets that worried me. When you open the bonnet it hits you. Lol
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BenC1985
Member
Registered: 5th May 12
Location: Northants
User status: Offline
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My old let wasent that bad. Even after a good run. Lol What rad are you running?
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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Standard 1.4 rad and fan with a cool running stat. As i ssy the coolant temp is perfectly fine (always below 98 even sat in traffic for ages when its 29'C outside) its the actual engine temp that worries me. I.e if you touch the rocker after a run or even just hover your hand near it its crazy hot. Ive worked on many engines and never felt one as hot but it may be fine and not bother the engine ?
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bigron1988
Member
Registered: 29th Aug 09
Location: Southport, Merseyside
User status: Offline
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get the proper nuts from vauxhall for the inlet if there coming loose, there copper deformed nuts and cost about 15 p each and there designed so they dont come loose
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monkeytwizzel
Member
Registered: 10th Aug 11
Location: Chard, Somerset
User status: Offline
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Rseeley has an alloy rad for sale for £100 if you want to increase the coolant capacity.
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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I have replaced the stud/nuts for bolts so that the inlet can be removed in the car. I think im going to have to locktite the bolts and hope for the best there. When it comes to rads are the tx auto alloy rads a greater capacity then if so are they a direct replacement? I think a alloy rad with twin fans is the first step and see what happens. Lol.
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bigron1988
Member
Registered: 29th Aug 09
Location: Southport, Merseyside
User status: Offline
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There is your problem then replacing them with bolts, they need the copper nuts on them so it all can expand with the heat
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FlaFFy_91
Premium Member
Registered: 30th Sep 08
Location: Formby, Merseyside
User status: Offline
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As Ben said. The coper nuts and studs are there for a reason. If it gets that hot it would melt the lock tight anyways.
As for the cooling. Make sure your cts for your dial is reading correctly. There about £10 from vauxhall. Could be broken hence not showing you any readings
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AlexW
Member
Registered: 25th Oct 08
Location: Essex
User status: Offline
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I like how 90% of this thread is about coolant, when if coolant temp was an issue, the fan would be on constantly, which I'm guessing its not.
I'd be more interested into looking at how lean its running, running lean would cause it to be very hot.
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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Ah so i need to get rid of the bolts and put the studs and copper nuts back. Thats a bummer.
The fan only cuts in when it needs to then cuts out exactly as it should.
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monkeytwizzel
Member
Registered: 10th Aug 11
Location: Chard, Somerset
User status: Offline
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quote:
Originally posted by AlexW
I like how 90% of this thread is about coolant, when if coolant temp was an issue, the fan would be on constantly, which I'm guessing its not.
I'd be more interested into looking at how lean its running, running lean would cause it to be very hot.
What about the fact that if the engine was still in it`s original car that it would have a larger rad so therefore would have a larger coolant capacity to keep it that little bit cooler so if it was running lean or rich it wouldn`t show up in the coolant temp?
Some engines do just run hotter than others but that doesn`t mean that they have a fault.
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AlexW
Member
Registered: 25th Oct 08
Location: Essex
User status: Offline
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If the temp gauge is showing 98, thats bang on what it should be, a bigger rad would just lower that a couple of degrees perhaps (Only once the thermostat is open anyway!), which won't make a lot of differance to the engine temp anyway!
On another point, might be worth checking the oil temps, as I assume it hasn't got a oil cooler on it atm
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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Yer the coolant temp is fine perhaps the oil is hot as you say? No i havent got an oil cooler atm. Is this something thats recommended?
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monkeytwizzel
Member
Registered: 10th Aug 11
Location: Chard, Somerset
User status: Offline
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Yes fitting an oil cooler will help to remove some more heat from the engine,If you drive it hard a lot then definitly a good idea.
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Stoneyginger
Premium Member
Registered: 25th Jan 01
Location: Stonehaven, Aberdeenshire
User status: Offline
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i run my c20xe without an oil cooler and have done for years, ran a standard radiator from a 1.4 sport and now a 1.0 12v radiator and again never had a problem. Oil cooler is not a must unless you really are going to drive the nuts off it constantly or use it for track days or racing. Check the obvious stuff thermastat isnt stuck shut and that it is an 82 degree cool running one, guage in the car is working properly
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Dan
Premium Member
Registered: 22nd Apr 02
Location: Gorleston on Sea, Norfolk
User status: Offline
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If the engine feels hot. But the coolant temp is fine.
There is nothing to worry about. It would continue rasing the water temp.
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