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New motor light white smoke/steam?

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Old 05-04-2014, 03:50 PM
Fl2500 Fl2500 is offline
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Question New motor light white smoke/steam?

New motor is in, headers installed, EGR block off etc. Starts right up and sounds good. There is a little white smoke/steam (I cant tell), total run time is still less than 30 minutes. Could it be water/moisture in the exhaust system since it was unbuttoned and outside for 5 months that is burning off? There is no puff of smoke on initial start up that I would normally associate with a bad valve seal (they are all new), no color to the smoke/steam either. Cant see it above 1500 RPM, only when she idles/fast idles. My instinct tells me to wait and see but I thought I would stop in for opinions. Thanks all.
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Old 05-05-2014, 12:15 AM
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weedahoe weedahoe is offline
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Is this a motor your rebuilt or one remanufactured? What size engine by the way?
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Old 05-05-2014, 06:41 PM
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Re-manufactured, 5.7 long block. All I can think of is to drive it like usual and wait. Oil pressure and temps are perfect, no odd sounds.
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Old 05-05-2014, 10:54 PM
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Yeah, if it was a short block and you put the heads and head gaskets on then I was going to say check there but with a long block, that's already done.

Let us know if it quits
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Old 05-08-2014, 02:24 PM
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Cleared up after another 30 minutes or so. Must have been lots of water in the muffler (which is coming off soon anyhow). Now I need to go re torque all my header bolts as i hear some leaks.
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Old 05-08-2014, 02:54 PM
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Good job
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Old 05-08-2014, 10:11 PM
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It is pretty normal to have a little smoky looking steam after an engine replacement-old soot etc condensation build up has to burn out of the exhaust system-the longer the vehicle sits the more u will have-I try and do initial start up before the customer arrives for pick up so they don't freak out 0-o -------
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Old 05-08-2014, 10:46 PM
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I am relieved for sure
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Old 05-16-2014, 08:24 PM
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All good on the exhaust front. However I drove it a good 50 miles and found an oil leak, and its coming from where the dipstick tube goes into the block. I looked at the service manual and it does not reference any o ring or grommet here... am I wrong? Maybe the dipstick tube is not fully seated or is messed up somehow? ideas please
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Old 05-16-2014, 08:24 PM
 
 
 
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