[Mini] Oil spitting

Anne minilists at mibv.com
Sat Apr 27 19:40:56 MDT 2013


Forgot to add this link, scroll down a bit to see the pistons and bores
http://goo.gl/KaDgS

Anne.


On Sun, Apr 28, 2013 at 3:38 AM, Anne <minilists at mibv.com> wrote:

> Here is some more information;
>
> The result of the RR done last week, when it wasn't spitting oil as much
> yet.
> RR result: http://goo.gl/QHvbF
>
> And as you can see, while on the RR black (rich) and grey (no idea :))
> smoke came out, not blue or white though
> http://www.youtube.com/watch?v=lpT_NhzMEEE
>
> If I recall correctly the engine was build in 2000 after the IMM trip.
> It's a 1293 with Stage 2 unleaded head (35/29), Hepolite 21253
> and Balanced/x-drilled bottom end.
> Since then it must have done at the least 85k miles, so yes I was
> expecting it to fail at a certain point in time.
> As most likely will the gearbox which, apart from the dropgears and
> clutch, has been arnoud since 1997 and done close to 240k miles.
> I had hoped they wouldn't untill I had had some experience driving with
> the charger installed so I would have an idea on what could be an
> improvement.
> Anywhoooo,
>
>
> We'll do a compression test, and if a leak tester can be sourced also a
> blow-by test to see if the pistons/walls/rings are in good order.
> Based on the numbers the head may come off to inspect the inside visually.
>
> We'll also try to do a suction test of the carb, while driving.
> It shouldn't be to hard to run a tube inside.
>
> Unfortunately it'll have to wait till Monday as the DIY shop is about an
> hour from where I live (20min from where Arnoud lives), so I can't hop by
> easily to check or work on it.
>
> After doing the tests there most likely will be two choices;
>
> a. cylinders are not in good state
>
> This would mean the mid section (short?) of the engine will need to be
> replaced.
> Or would I need to consider changing the head at the same time?
>
> Is there an option that would be more suited for a charger, where I might
> even do without the decompression plate?
> I'm currently at 1293 and would not want to use a bigger bore than that.
>
>
>
> b. Change breather setup
>
> This may even be advisable if a. is done.
>
> I can run an additional hose from the dipstickhole and rocker cover and
> eventually add one to the mech pump plate a bit like John had on Coo.
>
> The question would be; would I run these to an oil catch tank with an air
> tight connection to the carb, as per usual?
> Because if the current set up with 1 hose to the carb does not get the
> fumes out of the engine fast enough, adding additional tubing but no
> additional suction will not change much.
>
> Or will it?
>
> Anne.
>
>
> On Fri, Apr 26, 2013 at 6:11 PM, Anne <minilists at mibv.com> wrote:
>
>> After the fuel issues was sorted sorted and the clutch keeps working fine
>> with the washer installed, it was time for the Van to think of another
>> symptom to come up with.
>>
>> First it tried to impress me with a fairly lack of improvement in bhp or
>> torque (+ 4 and + 10 after fitting the charger), but as that did not work,
>> it started to throw out the engine oil.
>>
>> Although initially not directly a problem, I had a look at where all that
>> oil was coming from.
>> From the pattern it looked like it was being pushed out of the dipstick
>> hole. The stick was not really sticking anymore; just lying in there.
>>
>> After I 'solved' this by plugging the dipstick hole, the oil found other
>> ways to get out of the block.
>> Somewhere behind the distributor and also a bit past the oilfiller cap.
>> That did become a problem, and not just because it really DOES need oil,
>> but also because it was now spitting it over the hot parts of the engine,
>> resulting in nasty blue smoke getting into the cabin.
>>
>> Or at least I think that is what that smoke was. At least it is very
>> clear it's spitting out the oil in places it shoudln't.
>>
>> Pictures as always can be found here;
>> http://goo.gl/9400P
>>
>> Assuming the remaing crankcase breather (on the clutch side) was blocked
>> I took it off the carb nd checked it. Unforunately (would have been an easy
>> fix most likely) there is no blockage on either the engine nor carb side.
>>
>> Any hints as to what can be done to figure out where the problem is?
>>
>> Anne.


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