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Thread: Does Astra prove evolution a con?

  
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    kdchorse2's Avatar
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    Does Astra prove evolution a con?

    Being old enough to have experienced three Cavaliers 1.3 / 1.6 / 1.8, Vectra V6, Calibra 2.0 and V6... I never came across mayo in the oil filler / camshaft cover until I bought a 2001 model 8V Astra 1.6 for my daughter.
    What is it about the design that converts the engine into a Hellmans factory without a leaking head gasket... is it the plastic ( has anyone switched to an old style metal rocker cover..do they fit?) or are the breather tubes too narrow.. or can you drill the cover in some way?
    And as for the egr valve...

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    leeeeshad's Avatar
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    wrong forum mate
    Mk4 3 door sxi

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    kdchorse2's Avatar
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    Thx.. whre does it belong?

    Whichforum should it be in or will the moderators rescue it?

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    Tom{BSc}'s Avatar
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    I think the 1.6 8v engine suffers from overcooling. This is what leads to the mayo. Try a full oil change and then something to cover the radiator lol. Or maybe a higher opening temp sensor I dunno.

    I think it's the right forum, unless it's already been moved :P
    124.6 Bhp and 133.5 lb/ft from an x18xe1 (Now Sold)

    Now Drive a Corsa VXR

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    frostbite's Avatar
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    It is due to it not getting up to operating temp and being driven short distances, just clean it off if its just on the cap

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    leeeeshad's Avatar
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    its been moved, it was in suggestions testing and FAQs
    Mk4 3 door sxi

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    alimighty's Avatar
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    there is another post called mayo on oil cap should still be on page 1. ffoeg explains why there is mayo on the oil cap ( his post is on the 1st page but if you fancy a good read then go all the way through)

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    Ffoeg's Avatar
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    All my previous 8v VX's had emulsified oil in the rocker cover when I purchased them - that's a 1256 OHV Chevette, a 1.6 OHC Mk1 Astra, and, 1.4 OHC Mk2 Astra. But during my ownership, they never suffered form it again.

    The same goes for my folks 8v VX's - a string of various Viva's, Chevettes and Novas/Corsa's. None of those suffered either.

    IMO it's the longer modern service intervals that allow this problem to manifest ot the extent that it does... possibly couple tho the every decreasing size of engine bays which has a some compounding effect heat retention once the car is switched off

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