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displaying posts 1 to 22 of 22
| Author | Subject: Head gasket symptoms |
 gota6again
Seasoned Pro  Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #1
Evening chaps,What are the symptoms of a head gasket dying? I think something is SERIOUSLY wrong with mine. The temp went all the way to red, the fans were on high speed and the interior heating was blowing cold. Also, after searching, mine is doing the misfire on cold starts  |
 Posted 20th Jun 2011 at 23:53
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kit
Seasoned Pro  Location: Location: Location: Registered: 22 Jan 2009 Posts: 2,394 Status: Offline |
Post #2
Is it running on all cylinders? Check for obvious symptoms such as oil in coolant, mayo type sludge in oil filler/dipstick, white smoke from exhaust. Also leave the car overnight and open the radiator cap, if there is built up pressure from overnight the HG is a goner.________________________________________ Racing driver, fighter pilot, astronaut, compulsive liar. |
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Posted 21st Jun 2011 at 00:01
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #3
As far as I can tell it's running on all cylinders, it pulls well and seems ok in that respect. I had a look for mayo and there was nothing. How likely is an airlock? Do they just happen randomly? |
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Posted 21st Jun 2011 at 00:01
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bigbadbowen
Seasoned Pro  Location: Winchester Registered: 21 Nov 2003 Posts: 13,753 Status: Offline |
Post #4
No hot air usually means air lock ? Miss fire on start up means something in the bores ? usually water ? good excuse to have the head off and get a nice worked head back on with cams  |
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Posted 21st Jun 2011 at 00:02
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #5
bigbadbowen wrote: good excuse to have the head off and get a nice worked head back on with cams Or get a ready built engine.....oh wait its gone But in all seriousness, would it be cheaper just to replace the engine with a known working one? |
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Posted 21st Jun 2011 at 00:06
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mattgti6phase2
Seasoned Pro  Location: inside my 6 abusing the tarmac!! Registered: 16 Jul 2010 Posts: 2,371 Status: Offline |
Post #6
+1 for airlock.let her run up and open the bleed points if no water then most likely an airlock and will need bleeding. maybe check the stat as well, if thats not opening then that will cause over heating issues. ________________________________________ Team Nile 6 Team: 40.2 MPG  5 x a 306 owner! currently abusing type r's in a town near you ™ I truely live for the 306 ® Build date: 29th October 1997 Wednesday's car midweek madness  |
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Posted 21st Jun 2011 at 00:26
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #7
Will look at bleeding it, hopefully it's nothing but the horror stories really do shit you up with these things! |
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Posted 21st Jun 2011 at 00:27
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mattgti6phase2
Seasoned Pro Location: inside my 6 abusing the tarmac!! Registered: 16 Jul 2010 Posts: 2,371 Status: Offline |
Post #8
gota6again wrote: Will look at bleeding it, hopefully it's nothing but the horror stories really do shit you up with these things! they certainly do. but as you have said there are no mayo signs which is always good. to check the missfire unplug the injectors one by one and which ever one doesnt change the engine note is the one at fault. good luck. ________________________________________ Team Nile 6Team: 40.2 MPG 5 x a 306 owner! currently abusing type r's in a town near you ™ I truely live for the 306 ® Build date: 29th October 1997 Wednesday's car midweek madness |
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Posted 21st Jun 2011 at 01:57
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #9
mattgti6phase2 wrote: gota6again wrote: Will look at bleeding it, hopefully it's nothing but the horror stories really do shit you up with these things! they certainly do. but as you have said there are no mayo signs which is always good. to check the missfire unplug the injectors one by one and which ever one doesnt change the engine note is the one at fault. good luck. To be honest the misfire sounds like the coil pack, but the overheating really got me, hopefully a bleed and maybe a new rad cap will get her going again. |
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Posted 21st Jun 2011 at 02:02
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ryangti6
Seasoned Pro  Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #10
Sounds like being low on water symptoms to me.Check and bleed it then keep an eye on it, these engines have quite a habit of not mixing the oil and water especially in the early stages of failure. Hopefully it was just a bit low and you have got away with it but also have a good check for leaks after you have finished bleeding it all. ________________________________________ Ryan |
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Posted 21st Jun 2011 at 02:15
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #11
Cheers Ryan, will look at that too. Topped up last night and it was looking ok, but I suppose anything can (and usually does) happen. |
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Posted 21st Jun 2011 at 02:17
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ryangti6
Seasoned Pro Location: Pontypool Registered: 01 Sep 2006 Posts: 1,839 Status: Offline |
Post #12
Is the heater okay now then or still cold?Definitly bleed it through asap, if it was low or had an airlock when you added the water the rad will only take a bit of water without you opening the rad bleed point. It could easily lead you to think it was topped up enough when there is actually a lot of air in the system. ________________________________________ Ryan |
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Posted 21st Jun 2011 at 02:23
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #13
I haven't checked, got home and left the car  I'll have a quick look if it stops raining. |
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Posted 21st Jun 2011 at 02:25
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #14
HG gone, but will be she will be re-born soonish. |
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Posted 21st Jun 2011 at 18:27
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mattgti6phase2
Seasoned Pro Location: inside my 6 abusing the tarmac!! Registered: 16 Jul 2010 Posts: 2,371 Status: Offline |
Post #15
gota6again wrote: HG gone, but will be she will be re-born soonish. Deffo? Are you sure? ________________________________________ Team Nile 6Team: 40.2 MPG 5 x a 306 owner! currently abusing type r's in a town near you ™ I truely live for the 306 ® Build date: 29th October 1997 Wednesday's car midweek madness |
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Posted 21st Jun 2011 at 20:48
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #16
Yup, spoke to Deepak off of here and explained the symptoms plus I few more that I discovered last night, one being the stench of petrol from the rad filler, the pressure in the rad and then this morning the car spluttered and died. Just need to source an engine and she'll be back. |
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Posted 21st Jun 2011 at 22:51
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #17
Why not just change the gasket? It would be cheaper and easier than changing the engine.________________________________________ Rich |
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Posted 21st Jun 2011 at 23:00
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #18
Rich E wrote: Why not just change the gasket? It would be cheaper and easier than changing the engine. I had a chat with Deepak, the issue I have is that the head on mine has already been skimmed so I can't really afford to have it skimmed again, unless one of the wise chaps here can suggest a thicker gasket that would compensate for the skim? I would prefer mine to be repaired as it would have new shiney bits and I'd know what has been done - also eyeing up some cams as it's the perfect opportunity. |
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Posted 21st Jun 2011 at 23:04
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Rich E
Forum Admin Location: Hertfordshire Registered: 27 Apr 2005 Posts: 7,757 Status: Offline |
Post #19
Unless it was skimmed right to the limit before it should be fine to be skimmed again. Unless it's been massively overheated only a very small amount of material usually needs to be removed to regain a flat surface.________________________________________ Rich |
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Posted 21st Jun 2011 at 23:10
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #20
Ah ok, I didn't know that. Is there an option to have a thicker gasket though? For example the ones Rich at Lynx does? I'm not too clued up with uprated parts. |
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Posted 21st Jun 2011 at 23:13
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720puggti
Seasoned Pro  Location: West London Registered: 18 Jan 2009 Posts: 1,069 Status: Offline |
Post #21
Hi Dee,Repairing the head is an option, I'm not too up on the exact figures, but there is a maximum permissable amount you can remove. So it would involve removing the head and haing it's height measured along with flatness at the engineers. The only problem comes when it is measured and reads out of limits, everything turns into a waste of time... It's all up to you mate, a repair may be possible, but replacing the engine is also an option. Deepak ________________________________________ Deepak Gohil |
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Posted 21st Jun 2011 at 23:20
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gota6again
Seasoned Pro Location: Gone Registered: 18 Jan 2009 Posts: 1,595 Status: Offline |
Post #22
Hey Deepak, I'm totally open to the various options, I'm happy for you to suggest the best options. I would rather have mine repaired as like you said earlier it would have new items and I'd know the exact history of it. I'm waiting on a reply on how much an engine will be and go from there. If you're happy to measure up and advise that'd be great. |
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Posted 21st Jun 2011 at 23:53
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