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Old 11-20-2013, 02:09 AM   #1
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need advice for breaking in an engine

Just got my engine rebuilt, just after the previous owner had rebuilt it already. When I bought it, it had a valve tick and it turns out that it had a burnt valve and bad piston on cylinder one. Everything else was in good shape so I had a builder replace the piston, and just go over the rest of the engine. Now Im a little worried about damaging something else again as I'm not exactly sure what cause the burnt valve the first time. I'm not too confident in the tune it currently has. Will starting the engine and idling be a good idea?
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Old 11-20-2013, 11:38 AM   #2
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Originally Posted by Madridlv70duece View Post
Just got my engine rebuilt, just after the previous owner had rebuilt it already. When I bought it, it had a valve tick and it turns out that it had a burnt valve and bad piston on cylinder one. Everything else was in good shape so I had a builder replace the piston, and just go over the rest of the engine. Now Im a little worried about damaging something else again as I'm not exactly sure what cause the burnt valve the first time. I'm not too confident in the tune it currently has. Will starting the engine and idling be a good idea?
Just use break in oil and change it after 2,000 miles , then use regular oil and then drive it more
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Old 11-21-2013, 10:13 AM   #3
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Get it a good tune
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Old 11-21-2013, 01:23 PM   #4
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I'd look closely at the fuel delivery to that cylinder. It must have been running hot to do that damage.
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