hadyn Posted May 14, 2005 Share Posted May 14, 2005 Had a look under the rad cap today and noticed a tiny bit of light brown crap in the rim of the hole which you screw the cap into. No other signs of mayonaisse type stuff. I've attached some blurry pics, but you should be able to make out what I've found. No gunk under oil cap, no loss of coolant, so i presume this is nothing to worry about? Link to comment Share on other sites More sharing options...
hadyn Posted May 14, 2005 Author Share Posted May 14, 2005 *bump* Link to comment Share on other sites More sharing options...
absz Posted May 14, 2005 Share Posted May 14, 2005 me thinks all you need is to flush out the coolant system and refill with fresh coolant. it seems that its been running with water only with no antifreeze. Link to comment Share on other sites More sharing options...
hadyn Posted May 14, 2005 Author Share Posted May 14, 2005 changed the coolant with fresh toyota 4life a couple of months ago.... Link to comment Share on other sites More sharing options...
JohnA Posted May 14, 2005 Share Posted May 14, 2005 Does the 'forlife' change colour if there are exh gases present? meant to inform you of impeding headgasket galore, I guess. If that is not the colour the coolant is meant to be, I'd flush it and investigate what the feck is going on. Is it rust? If so what has suddenly deteriorated? I'm about to flush my own cooling system later today by the way. I've got lots of litres of deionised water ready to gargle Link to comment Share on other sites More sharing options...
hadyn Posted May 14, 2005 Author Share Posted May 14, 2005 well its the reddy/brown colour 4life has always been. The coolant was the same colour when I bought the car and after the change too and I havent really had any problems in 4 months? Link to comment Share on other sites More sharing options...
JohnA Posted May 14, 2005 Share Posted May 14, 2005 Ah, so the colour is normal then? Can't say from the pics, they look out of focus here. Link to comment Share on other sites More sharing options...
Toms Supra Posted May 14, 2005 Share Posted May 14, 2005 Possibly not mate, if was head gasket there would be mayo on the oil cap and the system would pressurise. It would also have a distinct smell to it. Link to comment Share on other sites More sharing options...
hadyn Posted May 14, 2005 Author Share Posted May 14, 2005 No overheating, car runs perfectly, no coolant loss Link to comment Share on other sites More sharing options...
paul mac Posted May 14, 2005 Share Posted May 14, 2005 STEP AWAY FROM THE RADIATOR SIR, nothing to see and nothing to worry about, if you are worried do a search on blown head gasket, gunk in the rad cap/oil cap has been done to death Link to comment Share on other sites More sharing options...
Alex Posted May 15, 2005 Share Posted May 15, 2005 I'd say you still had crap in it from before your last flush and so you didn't do a good enough job I'd put some radiator flush in, run it through the cycle suggested on the packet and then flush the system with a hose via the pipes at the back of the engine....and by unhooking the lower rad pipe from the radiator. Link to comment Share on other sites More sharing options...
JohnA Posted May 15, 2005 Share Posted May 15, 2005 If there is a lot of crap in the radiator, perhaps you can see it with the coolant flushed, the exposed rad core under the cap may still have rusty flakes staring at you Link to comment Share on other sites More sharing options...
michael Posted May 15, 2005 Share Posted May 15, 2005 I agree with Alex, whoever 'flushed' the system last time didn't do it properly I had a similar problem when Toyota serviced my car, I asked for a full flush but within months it was like yours again. I solved it with a new radiator but some people might consider that overkill Link to comment Share on other sites More sharing options...
Matt T Posted May 15, 2005 Share Posted May 15, 2005 There was a very thorough 'flushing' guide i found on supraforums the other day, worth giving it a go Link to comment Share on other sites More sharing options...
JohnA Posted May 15, 2005 Share Posted May 15, 2005 One problem with coolant flushing agents is that you have to keep the engine running for a while, so that they circulate and heat up. In the meantime the water pump is in contact with them, which is not ideal. I'll be running mine with mostly distilled water (plus what's left of the old coolant, some lubricating agents are welcome anyway) for a few miles. Then empty the rad again (whatever comes out, 4-5 litres) and refill again with distilled water for another short drive. Then I'll assume that the whole system is practically all water, so fill with 3 litres of pure coolant, rest water (de-ionised, ALWAYS) (9.4 litres is the capacity for the Auto so that will result to approx 30% strength, more than enough. ) Link to comment Share on other sites More sharing options...
hadyn Posted May 15, 2005 Author Share Posted May 15, 2005 just did 2 13.7 1/4s at shakespeare raceway today in blistering heat with absolutely no probs whatsoever Link to comment Share on other sites More sharing options...
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