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Thread: R I P bettsy,, & probably R I P sri too

  1. #1
    Regular Member indial's Avatar
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    Vehicle : vectra SRI

    Trim : estate

    Engine : eco 1800 z18 xer

    Year : 2009

    Mileage : 90,000 is

    Eek R I P bettsy,, & probably R I P sri too

    my beloved and sometimes hated 2003 veccy has gone to the great scrap yard in the sky.
    then instant lust; a sri black estate 1800 cc...loved it until now.
    replaced the coil curing a misfire. great.
    replaced the oil cooler/heater? after it dumped oil all over the road.yep good stuff.so far, until today when i discovered emulsified oil in the coolant header tank, there is no emulsified oil in the cam cover or in the sump...no loss of power yesterday(shopping run) so where to go from here?
    i am going to remove the oil filter and check for funny oil soon
    and contemplating dropping out the oil drain plug.
    so other than the cylinder head where else could oil and water meet.

  2. #2
    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

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    One the heat exchanger on the recently replaced oil cooler.... so chances are it didn't seal right or the heat exchanger has an internal crack/leak allowing oil in.

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    Regular Member indial's Avatar
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    Vehicle : vectra SRI

    Trim : estate

    Engine : eco 1800 z18 xer

    Year : 2009

    Mileage : 90,000 is

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    Hi north pole,
    That was exactly what i was thinking, but oil filter is clean, that is only oil present in the filter body no emulsified gunk.
    so..it will be replaced and what about the thermostat housing? as the oil and water pass though the body, I am thinking if there is no gunk in the oil water heater
    then it has to be the thermostat body.
    will be taking the oil water unit off today.
    Good news is none of the bolts have sheared and the nuts have come off cleanly, part due to a good soaking in paraffin I'm sure.
    .
    Thank you for your reply north pole, much appreciated.

  4. #4
    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

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    ermmm afaik the cooling system goes from the heat-exchanger on the oil-cooler to the coolant reservoir so you wouldn't be finding it in the oil filter, as the oil has already been filtered and the expansion tank caught the oil already... and yes the thermostat could be another point where it leaks but it almost never leaks oil around that area... unless it has been disturbed previously.

  5. #5
    Regular Member jonnybravo's Avatar
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    Vehicle : Signum


    Engine : 20 Dti


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    the oil passes in to coolant through heat exchange because oil pressure is higher than water pressure,as northpole says oil in coolant not in sump

  6. Likes northpole liked this post
  7. #6
    Regular Member indial's Avatar
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    Vehicle : vectra SRI

    Trim : estate

    Engine : eco 1800 z18 xer

    Year : 2009

    Mileage : 90,000 is

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    So, new O/M oil cooler fitted, (a cool £108 ) new thermostat with housing ready to put on.
    with the old thermostat removed i have ran the engine whilst poring in fresh water (brittle throttle body pipe, honest, it broke in my hand)
    and it would appear to be making more mayo than Hinze. sump and cam cover still mayo free.

    any other places where oil and water mix or meet?

  8. #7
    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

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    Headgasket or thermostat... and that is it... must be a really big problem for it to keep making mayo... if it is the thermostat...

  9. #8
    Regular Member indial's Avatar
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    Vehicle : vectra SRI

    Trim : estate

    Engine : eco 1800 z18 xer

    Year : 2009

    Mileage : 90,000 is

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    well the thermostat body will have to come off first and then the head, chances are it will be a cracked head that will be a hard blow to the wallet but on wards and up wards.

    now i need to know what tools to use locking the cams once i have set the engine timing up.
    thank you for your input nothpole, will let you know what happens with the head off

  10. #9
    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

    Default

    look on ebay there are locking tools specifically for your engine at decent prices... but before you go and buy anything... i would take the thermostat off,, check if it passes scrutiny and if it does, either the headgasket has gone or as you suspect a crack in the head... in both cases weigh the price of parts against getting a complete used low mileage engine... as the z18xer's can be picked up from 150 up to 300 pounds... and it might be cheaper to just drop another engine in... so never dismiss that option.

  11. #10
    Regular Member indial's Avatar
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    Vehicle : vectra SRI

    Trim : estate

    Engine : eco 1800 z18 xer

    Year : 2009

    Mileage : 90,000 is

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    Yes i found the cam locking tools on e bay , also found a recon head for £225, head gasket set for £55 ish and new head bolts for £8
    a few photos.

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