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16th February 2013, 09:40 | #1 |
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Coolant loss and mayo on oil filler cap
Hi guys,
I have recently spotted some mayo on the oil filler cap. I am also having to top up my coolant once a week with about a coffee cup full of coolant. I drive 60 miles every day and the coolant temp never rises above 92 degrees. I also have a rattle when first starting the engine, which settles down after a couple of minutes. Do you think this is a sign of hgf starting? Any help appreciated as always
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16th February 2013, 09:50 | #2 |
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Steve,
When the engine is for started when cold, is it a bit lumpy, trying to misfire? I'm thinking about the inlet manifold. I know you have changed this for the Alloy VVC version, but it would be my first port of call. |
16th February 2013, 09:51 | #3 | |
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Quote:
it looks that way as you have both coolant lose and signs of mayo, condersation can be ruled out as you are doing long trips ,inlet manifold gasket being the cause wouldnt cause mayo so it would just cause a lumpy idle until coolant had been burnt off.so i would say the signs you have do point towards hgf,
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[ I'm really confused. -I keep dreaming I'm an insomniac Last edited by chrissyboy; 16th February 2013 at 09:54.. |
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16th February 2013, 10:36 | #4 | ||
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Quote:
I would say that a maximum of 92 degrees isn't hot enough, either for a good engine or one with head gasket failure. Try driving in 'econ' mode so that the radiator fan isn't running all the time. You should expect your temperature to approach 100 degrees when stationary in traffic after a run at cruising speed. A thermostat which doesn't close properly will cause low running temperatures which can result in the mayo under the oil filler cap. Quote:
Simon
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16th February 2013, 19:02 | #5 |
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Thanks guys for your replies. I got called into work earlier and haven't been home long.
Paul, I'll go over the inlet manifold again tomorrow. There is no sign of any leaks around that area. It doesn't seem lumpy or misfiring, just tappety Chris, as said it isn't lumpy. Simon, I always thought 92 degrees was a good temperature. When I have asked other 1.8 owners about their temps, they were the same as mine Do you think I should change the prt? I'll give it a go in 'econ' mode tomorrow.
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16th February 2013, 19:13 | #6 |
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Steve, 92 in my opinion on a 1.8 N/A is about right, The Turbo version slightly hotter around 96.
Check the Inlet for any leakage, The Mayo is a serious issue, have the Head checked out at the earliest opportunity. |
16th February 2013, 19:22 | #7 |
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Will do thanks
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Mods so far: Plenums, bonnet release mod, handbrake compensator (arctic), rear parking sensors, coolant level sensor (Vindaloo), DRL's, Fan resistor upgrade ( Jules), Marmite lighting, Auto dimming rear view mirror, twin horns, fog lights, real walnut dash, walnut gear knob, Sean DD unit with DVB-T, message centre ipk, electric sun blind, auto opening boot lid, walnut steering wheel, electric seats Link to my Auto Boot Lift Mod http://www.the75andztclub.co.uk/foru...d.php?t=114273 |
16th February 2013, 19:24 | #8 | |
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Quote:
I don't think you should change anything yet. 92 degrees is possibly o.k. if your 60 mile trip is at speed on dual carriageways. I'd be interested to know if it rises when you stop, or enter the urban crawl, because I would expect that. I'd like to rule out the possibility of low coolant temperatures before sounding any alarm bells. Simon
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16th February 2013, 19:30 | #9 |
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My journey to and from work is along the A14 dual carriageway at around 70-75mph all the way. There is a small section of local B roads where I have spotted the temp at 94 on occasion.
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Mods so far: Plenums, bonnet release mod, handbrake compensator (arctic), rear parking sensors, coolant level sensor (Vindaloo), DRL's, Fan resistor upgrade ( Jules), Marmite lighting, Auto dimming rear view mirror, twin horns, fog lights, real walnut dash, walnut gear knob, Sean DD unit with DVB-T, message centre ipk, electric sun blind, auto opening boot lid, walnut steering wheel, electric seats Link to my Auto Boot Lift Mod http://www.the75andztclub.co.uk/foru...d.php?t=114273 |
16th February 2013, 19:42 | #10 |
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Ahh, so first 92, then 94! So when you park at work, does it creep a bit higher, perhaps, maybe?
Simon
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