Re: '87 535i Oil in coolant

[Ilia Zharkov <zharkov@xxxxxxx>]

Sorry to post again, it does seem clear that the hairline cracks are on the 
block itself, not on the head.
Thanks,
Ilia Zharkov.


>From: Ilia Zharkov <zharkov@domain.elided>
>To: bmw-digest@domain.elided
>Subject: Re: '87 535i Oil in coolant
>Date: Mon, 7 May 2001 00:58:23 -0400 (EDT)
>
>Hi guys,
>Thanks a lot for your replies.
>
>  I have taken the head off. Here is what I
>see. The gasket appears to be
>defective in a couple of places. Since I never saw a blown gasket it is
>not clear whether mine is realy bad. On the other hand there are bad
>news. I
>have noticed two hearline cracks from the bolt hole towards both nearest
>coolant passages. The bolt is on the passenger side between #4 and #5
>cylinders
>where there is one of the two small bushings (I think, those are supposed
>to help installing
>the gasket and the head). Otherwise both the head and the block seem to be
>OK.
>
>   How fast oil can migrate through such tiny cracks, or do they become
>considerably larger when the engine is hot? In my case the rate is about 1
>qt in 5-10 hours (highway speed, no traffic, normal operating
>temperature).
>
>   Any suggestions what I can do with the car besides replacing the motor
>(I guess, it would cost about the same as the car's street price).

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