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Model specific boards => Golf mk2 => Topic started by: superted on 12 April 2011, 17:45
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Well everything was going to plan today getting the car ready for its M.O.T, as it been off the road for two years. i have a problem already with the temp gauge, but after spending the last hour trying to bleed the system out after fitting new water pump it gets a build up of air in the system, with the top rad hoses getting quite firm.
I ve done all the basic checks no oil in water, and no water in the oil, got heating, no weaping around the base of the head, the only thing that stands out is the spark plugs, no1 is black at the tip. no2 slighty white, no3 white and so is no4, i know lack of fuel or running lean can cause this but so can water if weaping into the cyclinder but it seems fine, i did notice a slight misfire for a few minutes when cold this morning but cleared when engine got up to tempuature.
Any help would be greatfull
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Have you done a compression test? Any loss of coolant?
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No water in the oil does not mean the head gasket is fine. If you've got a firm radiator hose, then it's likely your head gasket has blown.
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I hate bleeding mk2's.I think maybe you may have an airlock in the matrix.Sometimes it takes ages to get it out.To get around it i usually run around with less water in for a while then add more as the level drops.
Otherwise i'd twit it as i have no patience and end up with no car lol
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I think maybe you may have an airlock in the matrix.
Why?
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because air gets trapped in there and does cause airlocks and and cooling problems
Thats why
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because air gets trapped in there and does cause airlocks and and cooling problems
Thats why
But he has heating.
Firm coolant hose = gasket.
An airlock alone wouldn't cause a firm hose.
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Clean the plugs off and leave her running for a bit and then inspect them again. If the same thing happens run a comp test, if is shows you are running low on the two mayo colored plugs your going to have to go digging to find the problem. You say she hasnt been ran/on the road for two years, did you have the correct coolant levels in/drain the coolant over winter. You could have cracked the block if you simply had water in, my car froze up even with the correct coolant in. Sorry if this seems a little drastic, I doubt its the case but still somthing to look out for. :smiley:
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Do a compression test as a 1st step but does sound like a h/g issue.
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No water in the oil does not mean the head gasket is fine. If you've got a firm radiator hose, then it's likely your head gasket has blown.
Yer I know no water in the oil dosnt mean the head gasket fine, just doing the basic tests till my mate comes round with pressure test kit from work. I only got the golf last week i thought i would save it from getting broken up for parts as it sat in a workshop for 2 years with no coolent in as one of the core plugs was leaking, but i've done that and fitted new water pump and rad, then flushed the system through till flowing clean.
After starting from cold lots of steam on start up and misfire this morning got a little video, after running for a little while fan kicks in but water in the header tank not hot, water dripping out of rad return at boiling point then water surges backwards up into the header tank and overflows evrywhere, then water goes back down into the system.
http://www.youtube.com/watch?v=O9y46McTHS4
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You can buy test strip kits for like a few quid just to check for hydrocarbons in the water?
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With the header tank cap off check for a steady stream of water from small hose when revved. Mine was blocked at the radiator end and this caused pressure in the system to an extent that I lost water and when removing the cap even when the car was cold the level tended to want to overflow.
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With the header tank cap off check for a steady stream of water from small hose when revved. Mine was blocked at the radiator end and this caused pressure in the system to an extent that I lost water and when removing the cap even when the car was cold the level tended to want to overflow.
Took return hose off the rad and its foaming bubbles lots of air in there, got to go back to work wont be home till 5 so will try and get the head off tonight :smiley: im not giving up on her just yet.
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I have to admit I had heat issues once, the water return pipe to the expansion tank was blocked, but you should be able to see a steady flow of water from that pipe into the tank!
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As jay says look at the header tank end - air might be getting past a blockage at the rad end even if water is not.
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I have to admit I had heat issues once, the water return pipe to the expansion tank was blocked, but you should be able to see a steady flow of water from that pipe into the tank!
yea got a dribble coming through, cleaned no 4 spark plug left running 1/2 hour, slight white effect to tip of plug. fan come in 3 times temp half way, water in header cold waited 30 secs then surge of hot water comes back up bottom hose in header and over flows so i reckon water leaking into 3/4 bore causing steam and mis fire on start up.
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Yeah could be a worn ring on no. four, head off time I'm afraid mate!
Emulsified oil on the tip a sure sign of water ingress on a bore!
Sorry fella it might be just one new ring, new gasket, flush, light skim on the bore and light skim on the head?
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Yeah could be a worn ring on no. four, head off time I'm afraid mate!
Emulsified oil on the tip a sure sign of water ingress on a bore!
Sorry fella it might be just one new ring, new gasket, flush, light skim on the bore and light skim on the head?
Right took the head off today, what a pain the exhaust was my right shoulder is killing, anyway lifted the head off and 2, 3, 4 valves coated white, found a small amount of silcon in one of the water ways on the head, pistons all black so dont think water has been getting in the bores or not alot to clean the face of the piston, so im goimg to strip the head get it skimmed monday, and order the parts going to replace all gaskets and put her back together and hope it sorts it out. Replaced all the core plugs and flushed through, as well today.
(http://i668.photobucket.com/albums/vv41/superted1982_photos/golggtihead001.jpg)
(http://i668.photobucket.com/albums/vv41/superted1982_photos/golggtihead002.jpg)
(http://i668.photobucket.com/albums/vv41/superted1982_photos/golggtihead003.jpg)
(http://i668.photobucket.com/albums/vv41/superted1982_photos/golggtihead004.jpg)
(http://i668.photobucket.com/albums/vv41/superted1982_photos/golggtihead005.jpg)
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No.1's where your problem has occurred, I'd say. The dark-coloured exhaust valves are the odd-ones-out.
Excuse me borrowing/doctoring your pic, but I think the fire-ring has leaked where the yellow arrow is pointing:
(http://i219.photobucket.com/albums/cc138/EZ_Pete/9d326d72.jpg)
When getting the head skimmed, ensure that enough material is taken off to 'make-good' any erosion of the alloy between the waterway nearest that point, and the area which that fire-ring of the gasket occupies. :smiley:
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No.1's where your problem has occurred, I'd say. The dark-coloured exhaust valves are the odd-ones-out.
Excuse me borrowing/doctoring your pic, but I think the fire-ring has leaked where the yellow arrow is pointing:
(http://i219.photobucket.com/albums/cc138/EZ_Pete/9d326d72.jpg)
When getting the head skimmed, ensure that enough material is taken off to 'make-good' any erosion of the alloy between the waterway nearest that point, and the area which that fire-ring of the gasket occupies. :smiley:
Cheers for that, the gasket was old and falling apart. I Surpose sitting for two years probley didnt help, i hope when i put it all back together i wont have a misfire or air lock problems, ive changed everything else :laugh:
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SOrry just seen this thread could some1 please clear this up for me so as some1 has said their is Supose to be no pressure in rad hoses what about the bottom 1 I thot the collant system on a mk2 was pressurized would that not make top and bottom hoses hard after a long run ?
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SOrry just seen this thread could some1 please clear this up for me so as some1 has said their is Supose to be no pressure in rad hoses what about the bottom 1 I thot the collant system on a mk2 was pressurized would that not make top and bottom hoses hard after a long run ?
Yes it was building up pressure and not following correctly, changed rad, water pump and flushed system a few times, bottom hose didnt get that firm compared to the top hose.
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OK am just wondering is the bottom hose not Supose to feel hard after a good drive ? CHeers