nelstomlinson
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Everything posted by nelstomlinson
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A little update on this. I had bypassed the ignition switch, ran power from battery to starter solenoid through a momentary contact switch on the dash. We noticed that it only started hard if we turned the key to on, then cranked the engine. If we turn the key briefly to start, then let it go back to run, then push the starter button, it starts easily. Probably the computer is confused. With all the problems my old diesels have, they are still so much better than this.
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It's turned cold again, and the old silver subie is starting hard again, so I took it to a pro. He's telling me that the aftermarket o2 sensor works when hot, but isn't working right when cold, so the computer floods the engine on a cold start. Sounds plausible, I guess. He's trying to source an OEM o2 sensor now.
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She has a budget of $6k, wants something newer than ma and pa have, and wants to stay away from modern innovations like hybrids, continuously variable transmissions and variable valve timing. I know to avoid the early 2.5L DOHC, but I really know nothing about the Subies from this century. So, what's an age range that'll be a sweet spot between "old and odd and falling apart" and "too new and trendy to be reliable?" Are there models or features to avoid?
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@ccrinc, thanks, I roughly followed your instructions, and took care of a ticking noise on the passenger side of the engine. The #3 intake vales were a little loose, and the exhaust valves were probably double the lash they should have had. I must have messed up setting them when it was on the stand, but it's not too hard to do in the car. Anyway, it's running great now, no ticking, and the CEL hasn't come on again.
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I've gotten a little over 500 miles on the rebuilt EJ25, and I'm starting to wonder when I should do the first oil change. I filled it with Royal Purple special break in oil, I've been trying not to run at any one RPM for very long, doing all the usual break in routine. Should I change it out soon? or maybe just swap out the filter and keep using that fancy, expensive oil a couple thousand more miles? There's very little carbon showing in the oil, so I suspect the rings are seating nicely.
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Y'all were right: it was the timing. When I got everything off the front of the engine, I could see that both cams were advanced about half dozen teeth relative to the crank. I have no idea how I did that. When we put it together the first time, we got the lines on the belt on the marks on the sprockets, and stood back and admired it, and looked twice...and somehow we got it wrong. So, we reinstalled the belt, and got the lines on the belt on the marks on the sprockets, and looked twice, and somehow we got it right, because this time it started right up. Thanks for your help!
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The old short block had the keyway get ruined, so crank, sprocket and harmonic balancer all had to be replaced. So, a new short block and new sprocket. I compared the old and new sprockets, they have the same number of teeth, and the tone rings look identical. I'll replace the cam and crank sensors this weekend. If that doesn't do it, we'll pull the engine and try reinstalling the belt, I guess.