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Ef Falcon wont cool down after driving engine hard 

 

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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:45 pm 
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93EB wrote:
So if it dosent get hot from normal driving it may be ok ??
Running the car in second is making the engine run and tranny run faster hence it will get hotter. How hot does it actually get ?

Well the longer i drive it in second (4000rpm) redline is 5500 the hotter it gets, got it to almost in the red, then shifed it into drive, didnt boil, didnt get any hotter but didnt drop temp either,
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:45 pm 
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Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:46 pm 
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93EB wrote:
So if it dosent get hot from normal driving it may be ok ??
Running the car in second is making the engine run and tranny run faster hence it will get hotter. How hot does it actually get ?

well the longer i drove it in secnd at4000 rpm the hotter it got was almost out of the normal range shifted into drive, didnt get anyhotter, didnt boil, but didnt cool down either..
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:51 pm 
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SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:52 pm 
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Brett570 wrote:
SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new

o bubles either, just a stream of water
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:54 pm 
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Brett570 wrote:
Brett570 wrote:
SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new

o bubles either, just a stream of water


He didnt do any of the work hes only 300 meters from where i live i just ask him questions..
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:56 pm 
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Brett570 wrote:
Brett570 wrote:
Brett570 wrote:
SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new

o bubles either, just a stream of water


He didnt do any of the work hes only 300 meters from where i live i just ask him questions..


Stop asking him questions and go further down the road................. :roll:

Last edited by SWC on Tue Mar 19, 2013 9:57 pm, edited 1 time in total.

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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:56 pm 
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Brett570 wrote:
Brett570 wrote:
Brett570 wrote:
SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new

o bubles either, just a stream of water


He didnt do any of the work hes only 300 meters from where i live i just ask him questions..


I did have the thermost in when i first tested it, when i pulled it out it was still open, has been checked in hot water too..

as i said im stumped, even tried turning the car off to reset the guage..
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:58 pm 
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Brett570 wrote:
Brett570 wrote:
SWC wrote:
Silly question, but is the radiator blocked?

As Dave said, refit the Thermostat, they are there for a reason.

Is the system pressuring, are there bubbles in the header tank while the water is circulating?

The only reason you don't put coolant in staright away is to lest for leaks. 1000 Km my a***, change mechanics.

Its a new radiator, cheap but new

o bubles either, just a stream of water


Have you checked the radiator cap. If the cap is ok and the water is streaming out then the system is pressurising.
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 9:58 pm 
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have you changed the water pump since you put chemi weld in it???
worse thing you could have done was use chemi weld on an engine your planning on fixing, because that s**t gets everywhere..
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 10:05 pm 
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TROYMAN wrote:
have you changed the water pump since you put chemi weld in it???
worse thing you could have done was use chemi weld on an engine your planning on fixing, because that s**t gets everywhere..

Havent changed pump, could pull it out and check if its barnacles on it i guess, cause the thermostat is out you can see water circulatin, next plan is drive it in drive without thrasing it, what a replacement engine worth for one of them?.
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 10:06 pm 
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Brett570 wrote:
TROYMAN wrote:
have you changed the water pump since you put chemi weld in it???
worse thing you could have done was use chemi weld on an engine your planning on fixing, because that s**t gets everywhere..

Havent changed pump, could pull it out and check if its barnacles on it i guess, cause the thermostat is out you can see water circulatin, next plan is drive it in drive without thrasing it, what a replacement engine worth for one of them?.

For sale, EF falcon, reco head, any takers...
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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Tue Mar 19, 2013 10:22 pm 
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you need to test the thermostat in water that is the same temp as the thermostat is rated to, it may be a 92 degree thermostat that is not opening until 110 degrees. You need a thermometer to test it accurately. I've seen this many times before. for a few dollars you can safely rule it out. I would still be putting my money on a rooted thermostat. Also when you do reinstall, hopefully a new thermostat drill a small 1/8th hole in it, if it does not already have one. helps with pressure bleed and allows for a small flow of water.

As mentioned your radiator is new, but with the old one being cactus, there is a damn good change the crud that killed that one has made its way into your water pump. as a minimum, while the thermostat is out, drop your bottom radiator hose and get the garden hose and flush water through in reverse, it might help clear any possible obstruction.

If, after installing your new thermostat the problem is still there with the cooling system, I'd personally be looking at the waterpump myself

Hope this helps and clarifies things a little for you.

 

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 Post subject: Re: Ef Falcon wont cool down after driving engine hard
Posted: Wed Mar 20, 2013 11:24 am 
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As for running no antifreeze/coolant for the first 1000kms (or 100kms), I have heard the same thing from a highly reputable Ford mechanic. The theory is that it helps the new head gasket bond to the block and head. He has seen brand new head gaskets being replaced because the coolant had tracked past the gasket and created a small but permanent leak. It's to do with surface tension of the coolant or something similar. Could be all smoke and horsefeathers, though.

 

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