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Unread 09-02-2014, 05:38 AM   #16
86cj74.2L
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2004 WJ 
 
Join Date: Jul 2006
Location: Stouchsburg, PA
Posts: 7,004
Quote:
Originally Posted by Knoxes
I rebuilt the top end. Had the heads decked .010, basic valve job, new gaskets, new water pump, some hoses, belt, etc. It's running fine, but seems to be running just a bit hot - hasn't really gotten over the 210 mark (maybe slightly), and seems to hold there even when left idling for some time. On the freeway, it's solidly below 210 - probably right on the 195 mark for the thermostat. But I'm not entirely sure that it's cooling properly. After the initial 2 hour drive home from the rebuild, it seems to have taken a bit more coolant from the reservoir. Concerned that I still have some problems here.
It will take about three drive cycles to stop pulling coolant from the tank.

Both my and Grammys 2004 4.7's run at or just below 210. Always........winter and summer. Driving or idling.

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Unread 09-02-2014, 08:02 AM   #17
Knoxes
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2004 WJ 
 
Join Date: Feb 2004
Posts: 313
Good to know.

I just don't recall what temp it ran at prior to this. Should post a poll...
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Unread 09-02-2014, 09:01 AM   #18
86cj74.2L
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2004 WJ 
 
Join Date: Jul 2006
Location: Stouchsburg, PA
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Quote:
Originally Posted by Knoxes
Good to know. I just don't recall what temp it ran at prior to this. Should post a poll...
You only start to OT attention to something after the fact. Its human nature.

Do some spirited acceleration to push any air trapped in the heater core to the rad. You may hear the air in the glove box sound for a little while till its all away.
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