Carolina Broncos › 66-96 Ford Broncos › Bronco Talk v
cooling the EB

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Threaded Mode
cooling the EB
broncosbybart Offline
Moderator
*****
Posts: 3,290
Threads: 141
Joined: Dec 2007
Reputation: 0
#11
09-11-2012, 10:27 PM
That is a weird one Chuck. Usually the engine will run hotter during no airflow, vs full airflow. What rad are you running? Water pump? Could the lower hose be collapsing on itself? Let us know how you make out.
Find
Reply
blazinchuck Offline
Administrator
*******
Posts: 6,190
Threads: 511
Joined: Oct 2005
Reputation: 0
#12
09-12-2012, 04:41 PM
Stock rad, explorer pump, not sure on lower hose collapsing ...how would I tell that?

Sent from my DROID BIONIC using Tapatalk 2
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
Find
Reply
broncomatt Offline
Administrator
*******
Posts: 1,383
Threads: 84
Joined: Oct 2006
Reputation: 0
#13
09-12-2012, 05:02 PM
At higher rpms the lower hose can colaps due to restriction (or strong suctionin the cooling system. Hold the rpm around 2000-2500 once warmed up.
Barts right, it isnt normal to not cool when driving. Its a long shot but could the fan be turning the wrong direction?
[SIGPIC][/SIGPIC]
Find
Reply
blazinchuck Offline
Administrator
*******
Posts: 6,190
Threads: 511
Joined: Oct 2005
Reputation: 0
#14
09-12-2012, 05:30 PM
broncomatt Wrote:At higher rpms the lower hose can colaps due to restriction (or strong suctionin the cooling system. Hold the rpm around 2000-2500 once warmed up.
Barts right, it isnt normal to not cool when driving. Its a long shot but could the fan be turning the wrong direction?
no...its a thread onto water pump deal. i guess the fan to clutch could be...but no reason that should be wrong-came off stock explorer and colls like a cucumber 40 mph or less
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#15
09-13-2012, 01:11 PM
At highway speed you are relying on ram air to cool radiator rather than the fan. Seal up all your gaps and get the flashing installed on the upper support and I promise you will see a change.

I have that big 8274 blocking half my grille and I never get above 190 on the interstate in the middle of summer.

BTW, the eec will retard the timing 2 degrees once you hit 195.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
SC74 Offline
Posting Freak
*****
Posts: 2,525
Threads: 67
Joined: May 2006
Reputation: 0
#16
09-13-2012, 01:19 PM
Show me this flashing you plan on putting around the shroud?
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig

[Image: Bannerpic.jpg]
Website Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#17
09-13-2012, 01:31 PM
I will take a pic when I get home. I have simple angled roof flashing that sets in the top gap between the grill and the core support. Goes all the way across with a gap in the middle for hood latch stuff. Keeps air from going over radiator.

The addition of foam vertically just inboard of the turn signals will also help.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
blazinchuck Offline
Administrator
*******
Posts: 6,190
Threads: 511
Joined: Oct 2005
Reputation: 0
#18
09-13-2012, 02:46 PM
Also...im running a hard crossover tube for lower hose...so it can't collapse

Sent from my DROID BIONIC using Tapatalk 2
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
Find
Reply
DirtyWhiteBoy Offline
Member
***
Posts: 102
Threads: 5
Joined: Feb 2012
Reputation: 0
#19
10-08-2012, 08:47 PM
When you can post that pic of the flashing, I'm not running EFI but want to keep this thing as cool as possible. Dirtywhiteboy
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#20
10-10-2012, 05:11 PM
[Image: y7ygy5y2.jpg][Image: sygugy2a.jpg]

Got it from lowes. It is roof flashing I just cut to size.

Sent from my Droid using Tapatalk 2
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply


Forum Jump:


Users browsing this thread: 2 Guest(s)