GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Jay on 18 January 2009, 17:38
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reet, flushed the coolant system today by taking off both large pipes on the left hand side of the radiator, and also the small pipe at the top on the left that connects to the expansion tank (because it's cable tied to the large pipe just below it and didnt want to damage it in anyway).
Stuck a hose pipe up where I took the pipes off let it run clean, stuck the hose in the expansion tank to clean it out a bit too and left it there till it ran clear.
Put the hoses back on once the water had run clear, put 1ltr coolant, 1ltr water, then 1/2 a bottle of coolant into the empty bottle and filled the other bottle up with water so it was about 50/50 and put that in.
Squeezed/rev'd repeated until the hoses were getting hot, except for the bottom hose form the radiator, the by that time it was 3:30 and had to rush to Tesco to get some dinner before they closed.
After Tesco we went to the father inlaws and I had a quick feel of the bottom hose and it was warm, now after I've explained all that what I'd like to know is how much should a 1.6 Driver coolant system hold? because I've only put in about 3 ltrs of coolant/water (50/50) and I read that the GTi takes 5ltrs, does that sound right for a my model?
Also my temp guage does not go passed 1/4 now, I'm not sure if that's because it's winter (always got up to 1/2 in summer) or the sensor/valve thingy (forgot the proper name :tongue: ) is foobar'd... :undecided: as I said the bottom hose and all other hoses I could find in the dim light were warm when I got to the in laws (6miles away).
Should I bother taking the sensor out and testing it in boiling hot water? or do you lot reckon it's fine and just winter keeping the temp down?
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If your sensor was ok before the flush, it should be ok now. The amount of water in the system depends on how large your radiator is.
If your temp is indicating low, then you could have a thermostat issue, or an airlock right where the temp sensor is situated. Remove the temp sensor and bleed the air out, then refit and go for a drive.
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Well since it's been winter it's only ever got to 1/4 :undecided:
Not sure if it's just coincidental that the sensor goes bang when it gets cold... anyone else only getting up to 1/4 now that it's cold?
I thought that if the bottom hose got warm all was OK? :undecided:
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Go through the MFA menu and see what your oil temp is doing. When engine is warm, it should be somewhere above 85 degrees celcius, normally between 90 and 110. (Although 110 is a tad warm)
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What MFA? :grin:
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Oh!! :embarassed: :undecided:
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Yeh :embarassed: It's a pain in the arse to sort out an MFA for a Driver :sad: not something I'd do unless I was doing an engine swap.
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So are you saying that the temp is at 1/4 both before and after you did an engine flush? And it started since Winter?
If so, I'd be suspecting your thermostat. Perhaps it's slightly stuck open.
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mines been running colder going by the gauge of late jay :wink:
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mines also reading quater and was half in summer, but the ambient air temp has dropped massivly too
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Mine varies from 1/4 to 1/2, it was the same on my previous one too. Ambient air temp does make a difference, especially on older cars...
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mines also reading quater and was half in summer, but the ambient air temp has dropped massivly too
+1
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Thanks guys, I'm sure it's fine now that I know some of yours also do it, that or we've all got buggered thermostats :grin:
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mine would only go to 1/4, but after: 1) thermostat change, and 2) elimination of an airlock (which took several attempts and included the removal of the bypass valves) it is now working properly, that is, it goes to half.
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I don't have by-pass valves :grin: just copper piping :shocked:
I'll take the thermostat out at the weekend and test it in some boiling water just to be safe.
Gonna be doing another flush in a few weeks because the crud that came out was brown :sick: