Hi,
I am new here. I am french so sorry if my post is not very clear!

I have done some rallying in the past 2 years and now, I do some autoX, lapping and others.

I have a 1992 si hb. You can see some pics here:
http://public.fotki.com/evh1pe..._2001/
and here
http://public.fotki.com/evh1pe..._2002/

My question is: I've built a B18B1 and done some porting in the head. The exhaust valves guide has been shorten a bit (dont know how much exactly). The engine work fine but I have to add 1 liter each 1000km of normal driving. There is a lot of oil in the exhaust of cylinder 3!

All valve seals are new because they have been replaced last year for the same problem.

Can it be the same problem? or can it be the valva guide? How can I found the problem?

Thanks a lot. I wish you understand my post well.

 

This may sound redundatnt, but have you considered doing a leakdown test? This can tell you exactly where the leak is coming from.