New long block, high fan run times..

TopherSho

New member
So I have the new long block in, it seems smooth as glass.  But my paranoid brain thinks the cooling fans are on too much.  Here in Oregon it's 54' and about 75% humdity... But my fans are almost always on.  I found the overflow cap loose and tightened it... But is there any special prep for the water pump when the block is installed ... The fan is 90-100% almost all the time I stop and listen for it.  Will hook up the sct tool later.

So is there any special water pump steps before block installation?

What's everyones oerating temps for water and cylider heads.

Ty in advance.
 
If A/C is on whether for cooling or removal of humidity, fans will run.  If they both run at startup at ambient with A/C off, then fan failure might have occurred.

No special prep for WP.
 
I cycled the AC SWITCH a number of times.  I have not been on the highway yet so I need to try that and pull over rapidly and check fan status.  Just unsure.  I will check fan status on cold start in a little while..
 
Definitely overheating.  On the freeway at 65mph it climbed to 265, and the temp guage started swinging g up. 

Interesting bit, letting off the gas drops the temp 20 degrees for about 10 seconds..

I think there is air in the system for sure.. but I also think there's another temp issue as well because at 2500-3000 rpm it should flow enough to offset it.

 
:o  something wrong with the install.  The dealer needs to fix it.  Hopefully just needs a burping, like you said.  If the level in the reservoir dropped any after you let it cool down, that would lend support.
 
SHOdded said:
:o  something wrong with the install.  The dealer needs to fix it.  Hopefully just needs a burping, like you said.  If the level in the reservoir dropped any after you let it cool down, that would lend support.

It is going back Monday for a second look.
 
day 3, no word back from mechanic. 

My guess... the remanned block is bad, has issues with the cooling jackets.  calling today in about 3 hours to poke the bad-news-bear.
 
SHOdded said:
Criminey!

If my 'car' were a solid lead brick,  as in a literal brick... it would have a bad motivator, keep luke at the farm, kill obi-wan, maul kittens and burst into flames.

I
just
can't
win ...
 
TopherSho said:
SHOdded said:
Just ... too ... funny!  LOLOLOLOLOL

o.0 sense humor is all I have left these days .. :P


Brand new Thermostat stuck 80% closed.    LOL.... well fine thats cool with me.  there burping it.  pick it up tomorrow... *again* 

:starwars:

 
Yup, good news, hope that's it.  Another 50 miles to the 1st oil change, cutting open the filter.  Then 300 more miles to the next oil change.. cut open that one too... Then 1100 miles to go. 

The 1st 400 are still planned to be under 3000 rpm.
 
Ok, just to check with others, It's 70 outside, What is your coolant temp avg at on long stretches with steady gas at about 65-70 mph?

Should I put in a new 170 tstat?  Does the livernois/Torrie/eccopower tstats flow more? 
 
TopherSho said:
Ok, just to check with others, It's 70 outside, What is your coolant temp avg at on long stretches with steady gas at about 65-70 mph?

Should I put in a new 170 tstat?  Does the livernois/Torrie/eccopower tstats flow more?

Stock T-stat runs at 186 ish for me in 70 degree weather.  These cars are designed to run at a certain temp.  Ford designed them that way.  IMO there is zero need in any clime or place for a "colder" T-stat other then the factory t-stat.  It is a marketing gimmick...period.

http://www.tuneruniversity.com/blog/2012/04/low-temp-thermostats-whats-the-advantage/

 
#$%@ me,  i thought so.  im still running 215-230 degrees f ... where is this measured at?  maybe the sending unit/sensor is bad...

Hey AJP?  does your tune run the fans on a more aggressive curve ? 
 
Yuk!  Still a problem that has to be resolved by the dealer.  But wondering if there any air bubbles in the system, which you can try "burping" it for.  Also a thermal image of the radiator would reveal any hot/coldspots indicating radiator blockage.  Maybe incorrect spark plugs have been installed?  Might want to pull and check them (ALL of them).
 
TopherSho said:
#$%@ me,  i thought so.  im still running 215-230 degrees f ... where is this measured at?  maybe the sending unit/sensor is bad...

sensor is on the back of the head above the trans, I have a flex not SHO so air flow to radiator is different (worse) and on a 75 degree day doing pulls for logs I was at 182degrees. I have a 160tstat.

my fans shut off as soon as car is turned off?
 
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