got a problem with the 350 in this blazer I just spend money i don't have on, lol.. When I start it up, it fires right up, no problems.. but then after a minute or 2, it will start to smoke pretty bad. Also, smoke comes out of the oil filler hole. I don't have a compression guage to do a test, but what I'm thinking here is that it is either bad rings.. or more likely.. I have some bad lifter guides in the heads.. This blazer sat for prolly 5 years before I got ahold of it, so that may be a pretty good guess as to the problem, but no way to be sure without a compression tester, right? any comments on this one guys?
Sounds like rings to me. The motor warms up and expands and starts burning oil. Sounds like it might be time for a rebuild. The rings allow blowby into the crankcase which then vents through the oil filler hole. That sucks. :banghead: