Number 5 cyl problem in my E28 520i...

Aug 04, 2005 2 Replies

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Zoidberg 20 years ago

I have a 1984 e28 520i with 220.000 kms and I have problem with the number five cyl. When I take out the the spark, this it is covered with oil. The CO2 reading of the car is 1,4 % and the HC is 450 ppm. The compression of the cyl. is 150 psi and the others cyls. is betwen

175 and 180 psi.

Any of you have a similar problem? what happen? Is the rings? What can I do without overhaul? A ring change?

I only use a Liqui Moly oil and change it each 5000 kms.

Regards, and sorry for my English, I live in Chile...

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sylvain,sylvie 20 years ago

9 out of 10 it's the head gasket, but in the same time check carefully the cylinder head...

good luck

"Zoidberg" a écrit dans le message de news:

1_641843 snipped-for-privacy@autoforumz.com...

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Don Corleone 20 years ago

1.- Revisa regulación de válvulas. Sería el ideal que perdieras compresión solo por eso. 2.- Antes de medir la compresión echa una gota de aceite en el cilindro que está con problemas. Si sube, son los anillos. 3.- Podrían ser también los retenes de válvula pero lo dudo.

Suerte y cuenta cómo te fue.

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