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5KinKP60 Regular Location: Finland Registered: June 2002	Re: Overheating Tue, 03 December 2002 23:28 I had my VW to overheat the other day. Not enough coolant in the system, the flipping water partially froze over. Caused pretty apparent circulation problem. I take it this isn't one of your worries over there. --- Anyhow, get a pressure gauge (industrial supply hardware store should be able to cater this need, elaborate connections DIY way) that reads at least up to 2 bars. Pipe that in onto anywhere between wasser pumpen and thermostat. Good cooling system should run at about 1,5 to almost 2 bar pressure level. Maybe previous owner yanked that plastic cover away that used to be installed in between bottom of radiator and engine cross member. That is ever so important. It helps to maintain ever so slight underpressure area right behind cooling radiator - it helps air draught to walk right through the radiator. See if any plastic coverings are removed from either side of radiator. They have to be there. Otherwise air draught will walk right past/around the radiator since that route has less restrictions. This applied to all sides of radiator, top and bottom also. For reference have a look at engine bay of any modern car in a showroom - very well enclosed radiators you will see. No other way for air draught than go right through the radiator. Some have reported resorting into opening enginebay lid from windscreen side by few centimeters. This does generate a local low pressure area at back of enginebay, thus helping to extract air away and encouraging ventilation this way. My personal opinion is that such cars most likely have previously mentioned plastic OEM covers yanked away from enginebay frontal area, thus driving car into overheating problems in the first place. Normal OEM air circulation is as follows. Air draught rushing past car chassis creates previously mentioned low pressure area right behind radiator. This attracts some fresh air to engine bay htrough radiator. This slightly warmed up air is quickly sucked away by low pressure area lingering between engine and bottom of firewall - well actually between engine cross member and bottom of firewall. This phenomena can be enhanced further (to some extent) by bolting on that all so ever cruicial tuning apparel - front spoiler. This is why many cars (even way back in the -70's and -80's) had 'em installed at the factory already. It may not have been any more monumental than a mere 2 inch wide strip running from left to right - but it did the job. Bottom line is to restore cooling system to OEM condition and making sure of proper enginebay ventilation. (Corroded head water ducts/channels will lessen heat soak into water by fairly remarkable percentage. Have a look into this good people over there. Trapped air bubbles in the cylinder head may give problems at times. Have a look into different ways for making sure system is rid of air bubbles.) Comments welcome. -A. [Updated on: Tue, 03 December 2002 23:48] [Report message to a moderator]

	Subject	Poster	Date
	Overheating	wilbo666	Tue, 03 December 2002 03:00
	Re: Overheating	GZE-STYLE	Tue, 03 December 2002 06:48
	Re: Overheating	5KinKP60	Tue, 03 December 2002 23:28
	Re: Overheating	mrshin	Wed, 04 December 2002 00:45
	Re: Overheating	wilbo666	Wed, 04 December 2002 06:13
	Re: Overheating	justcallmefrank	Wed, 04 December 2002 06:42
	Re: Overheating	Pumpkin	Wed, 04 December 2002 21:15
	Re: Overheating	wilbo666	Fri, 06 December 2002 05:29
	Re: Overheating	skitz_supra	Fri, 06 December 2002 06:07
	Re: Overheating	wilbo666	Fri, 06 December 2002 06:10
	Re: Overheating	Esteban	Sun, 08 December 2002 10:08

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