stravi757 Posted February 19, 2014 Share Posted February 19, 2014 hey guys, I just picked up a very clean early 71 240z. Car has nearly zero rust! Anyways I picked up the car and it wasnt starting. After some tinkering I got it to fire up. I was told It had a rebuilt engine 55,000 miles ago. Although there is no paper work I believe it, because they also said the transmission was rebuilt, new clutch, new rear brakes etc etc which I confirmed are all true. Engine is an l26 I have had the engine running this past week, mostly idling.The Engine had a total of maybe 30-40 minutes of run time tops. It was revving nicely, but choking a little bit upon acceleration. As I was messing around with the idle mixture today while the engine was idling, all of the sudden I saw oil leaking from under the exhaust manifold on cylinder #5. Now it looks very apparent that oil is leaking from the valve stem seals pretty badly as I can see oil on top of all the intake valves. There is also a pretty good sized puddle on cylinder #4 among some on other valves. I also cannot see any signs of oil leaking from the valve cover nor the head gasket to rule out the oil leak coming from either of those places. I wonder though how it is possible that a steady and quite strong stream of oil/gas was leaking out of cylinder #5 exhaust gasket? It just seems very excessive the amount that came out in less that 1 minute. I could visually see the leak happening rapidly. I thought there would atleast be a obvious crack in the exhaust manifold gasket where oil could leak out from. I took some pictures to show. Has anyone ever dealt with a problem like this? The picture of the gassy oil on the ground is just the fluid that made in to the floor in that small amount of time, not the mention the amount that accumulated on the side of the block. Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted February 19, 2014 Share Posted February 19, 2014 So when you bought it it wasn't running? Did they say why? Quote Link to comment Share on other sites More sharing options...
stravi757 Posted February 19, 2014 Author Share Posted February 19, 2014 (edited) So when you bought it it wasn't running? Did they say why? Yes it was not running when I bought it. The guy really didnt know anything about cars. He owned it for three years and said one moring he tried to start it and it just wouldnt. It was in the same state when I got it, but once I reset the gap on the points for the dizzy, replaced the plugs, Took off the carbs and cleaned them, and sprayed some started fluid. It came back to life. Edited February 19, 2014 by stravi757 Quote Link to comment Share on other sites More sharing options...
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