Finally Got it running
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Senior User
Joined: Mar 2002
Posts: 117
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From: Rimbey Canada
Finally Got it running
Well today I finally fired up my 390. It is the first engine I have rebuilt, and it took most of my summer earnings just to build it, so you can imagine my relief when it fired up almost without a hitch, the only hitch was it seemed to run really hot, about 210-220 for the whole 20 minute run in is that normal.
Steve
Steve
Senior User
Joined: Dec 2002
Posts: 173
Likes: 0
From: Montana
Finally Got it running
I have had the same problem, sometimes it is an air pocket in the cooling system, what most people do not understand is that with a new engine tollerences are very tight. A new engine usually runs hotter, uses more gas and produces less horsepower than a broke in, good running, or looser runing engine. I have loosened the upper heater hose line and sort of burped the air out of it. Hope that helps.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
Finally Got it running
Congrats.. like he said they will tend to run hot for a bit. I always leave the radiator cap off and keep the radiator clear full until water starts flowing. Air pockets suck becasue you sometimes will get no flow plus no water around the temp sensor and it will show cold on the needle at 300 degrees.
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