Join Date: Jan 2002
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Re: 1989 258 I6 - same old problem with a twist
Sounds like you've got classic 258 blow-by, no real way to fix it except with a ring job. Just do a search for the topic and you should see a hundred solutions for the water/oil mess. At a minimum, you want to remove the breather line from the air cleaner to prevent oil from mucking things up - sounds like you've already done this.
Switching to a different carb will likely produce much better engine performance, but won't cure the blow-by. Just live with it and make sure that a carb swap won't cause you problems with emissions testing.