[DML] Re: Traces of oil (?) in coolant

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

You can dip a paper towel or a rag into the neck of the header bottle.
The oil will be attracted to and absorbed by the paper (or the rag).
If it is just a tiny bit it is of no consquence. If it is a large
amount and/or you see bubbles in the coolant while the motor is
running then you can guess a head gasket. There is a combustion gas
tester you can buy that is not expansive. It draws the gasses in the
coolant through a liquid. If any combustion gasses are present the
indicator liquid will change color. You can also do a compression test
or a cylinder leak-down test to confirm which cylinder is the source
of the trouble. If you have any doubts also watch the oil level. If it
goes up and/or gets foamy you can guess you have a problem. The simple
procedure to change the coolant is as follows:
1) Remove old coolant
2) Fill with fresh coolant
3) Pressure test and bleed system
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, "Stian Birkeland" <delorean@xxxx> wrote:
> Maybe this has been covered before... still -
> I've noticed a rainbowish colour in the coolant (like petrol in water)
> It's not much - very little in fact - is this normal, if not what do I
> do? Am I in for a head gasket job? Or?
> 
> Also, does anyone have a simple procedure on how to change the coolant
> yourself? Thanks.
> 
> Best wishes
> Stian Birkeland
> VIN # 06759






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