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Author Topic: Coolant temps  (Read 723 times)

Offline Dalo Harkin

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Coolant temps
« on: 06 June 2012, 19:52 »
Hi Guys,

Coolant temp gauge says 90 never goes above (it starts at 0 so thats a good sign  :laugh: )
But the rocker cover gets seriously hot, and if I fill the coolant bottle too high (roughly where the book and G12 signs are) I notice that it slowly looses coolant from the overflow over say a month (not a daily drive maybe used 2-3 times a week)
as there is no MAX sign on the bottle and only a MIN where do you all fill upto?

taken the top hose off the coolant bottle and its pumping so water pump ok, radiator only comes on now and again (hard to hear with a turbo back system  :grin: )

any thoughts?
« Last Edit: 06 June 2012, 19:57 by Dalo Harkin »
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ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)

Offline Bandit127

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Re: Coolant temps
« Reply #1 on: 06 June 2012, 20:06 »
Thoughts at the moment are:
You rocker cover will be heated by the oil splashing from the cams below so should be near the temperature of the oil - 90° or so. Not much cooler than a boiled kettle.
Your water should settle out at about an inch above the minimum line. (2.5 cm) when it is cold - a bit higher when hot. Any extra will be ejected by the overflow and that is as it should be.

Check your top hose when the car is hot (with gloves I guess) and it should feel inflated to about 10 psi. If not the reservoir cap might be leaking.
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Offline Dalo Harkin

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Re: Coolant temps
« Reply #2 on: 06 June 2012, 20:20 »
Cheers,

I'll get a new coolant cap and see what happen.
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ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)

Offline Granta Gti

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Re: Coolant temps
« Reply #3 on: 07 June 2012, 08:44 »
Mine does that too. I'd you fill it up too much it's like an overflow. It seems to settle where the ridge/seam is on the coolant resevoir.  :wink:
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