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OK...Now I'm P@#$$%, Need HELP ASAP PART 2 

 

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 Post subject: OK...Now I'm P@#$$%, Need HELP ASAP PART 2
Posted: Wed Nov 21, 2007 4:23 pm 
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Alrighty...problem is still occuring, but theres more information discovered...

Ok... i have tried

New Radiator
New Thermostat
New Coolant
New Temperature Sensor
New Radiator Cap
New Bottom and Top Hoses

Problem still occurs, temperature rises.

Basically, if i leave my thermo fans on, bonnet down, and sit there for ages, temp will not raise...it sits still...

If i hold revs up, on idle, to 2500rpm with thermos forced on, the temperature climbs, ~1/2 temp and only backs off when i let go of throttle...

As soon as revs are increased this motor is heating up quickly, otherwise on idle, temperature hardly increases....

Basically this is what ive come to now, a problem with bad fluctuating temperature guage, but only when revs are increased/or load.

Now this all happenend when the motor was takin to 5300rpm, i heard pinging at above 5grand so i backed off, and motor got to O (going ~150 clicks) then since then, the motors been heating up irratically and cooling down irratically

Now im desperate, any comments WILL be appriciated...

As i said, motor's heating up irratically under load (when driving then cooling down quiet a bit) or under revs on idle, (temperature increases pretty quickly).

Somethings not flowing right, becuase IDLING with fans on for 20 mins doesnt make the temperature move at all, but increasing revs makes the temp guage move up quiet a bit.

The only thing i havent tried is Water Pump...Its a burnsons one, dont know if that helps any one

 

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Posted: Wed Nov 21, 2007 4:28 pm 
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you heard pinging.. that'd be an alert wouldn't it?

maybe the water pump aint doing a thing?

 

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Posted: Wed Nov 21, 2007 4:29 pm 
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Sounds like a bad earth somewhere giving an incorrect reading on the guage.
If the guage is rising that quickly with engine revs its definately an electrical fault, as engine revs increase, alt output increases with makes your guage rise.

You could try unplugging alternator and revving it quickly, but dont keep it running as battery will be working its tits off.

 

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Posted: Wed Nov 21, 2007 4:49 pm 
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SgtBourne wrote:
you heard pinging.. that'd be an alert wouldn't it?

maybe the water pump aint doing a thing?


hence why i backed off but by then temp was on the O

 

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Posted: Wed Nov 21, 2007 4:56 pm 
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tighten up your earth cable on the block. mine had the fluctuating temp guage thing, almost like a boost gauge, it would build up as the revs increased and go down when i put the clutch in and the revs dropped.

i tightened up the earth cable (which was very loose) and havent had that problem since.

 

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Posted: Wed Nov 21, 2007 5:51 pm 
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Just went out and checked, the earth on the block is fine, nice and tight...and i checked the battery side, that was tight.

This has got to be the most annoying thing ever

EDIT i forgot to add, the temp guage doesnt shoot up as soon as u hold the revs, it takes maybe 20 seconds with the revs held up at 2500 for it to go from normal operating temp to start rising as if theres no fans on

 

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Posted: Wed Nov 21, 2007 6:23 pm 
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maybe the head gaskets gone might be letting gasses into the water
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Posted: Wed Nov 21, 2007 7:52 pm 
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i go for water pump, not pumping any coolant at low revs = low sensor reading. remember they only read the temp of the coolant thats in the thermostat housing.
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Posted: Wed Nov 21, 2007 10:39 pm 
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get another temp guage (like Autometer or something) and use that instead of the standard Ford one

 

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Posted: Thu Nov 22, 2007 3:27 pm 
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have you tried a cooler thermostat? instead of a 92 deg try a 87 deg thermostat.
you said you heard some pinging?
even if you cant hear the pinging after you back off slightly it doesnt mean its not still pinging.
and if the engine heats up rather quickly under load i would be starting to worry.
its either a headgasket/head problem about to give you grief or its something as simple as your ignition timing is out..

but i dont know exactly what model your talkin about?
if its ea/ed or el just back the ignition timing back a few degrees and see how it goes.
otherwise if its ef (coil pack) there isnt really any adjustment on the ignition timing.
or it could be s**t fuel causing pinging? which could make the temp rise rather fast

thats all i can think of right now..lol
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Posted: Thu Nov 22, 2007 3:40 pm 
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It will be the earth on the dash cluster.

The temp is probably fine.
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Posted: Thu Nov 22, 2007 5:53 pm 
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pretty confident thing to say for someone that doesn't have to pay to fix it when things do go pear shaped....

 

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Posted: Fri Nov 23, 2007 9:00 am 
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Hey,

When the engine is apparently hot, get someone to check that there is flow from the radiator return hose to the fill tank, mine does so i expect yours should as well. You will then know that water pump is working, and it's more than likely, an electrical issue. As suggested, get an aftermarket gauge and use that instead. I am using one similar to below.....
http://cgi.ebay.com.au/GAUGE-52mm-Water-Temp-NEW-Stepper-Motor-BLUE-AVAILABLE_W0QQitemZ320134932711QQihZ011QQcategoryZ102561QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
Very responsive and i believe it's quite accurate.

Cheers

8-) Daz 8-)

 

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Posted: Fri Nov 23, 2007 10:53 am 
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Did you do what 66_coupe suggested in your original thread ??

You could try running it for a while without a thermostat - it should be probably just reaching N on normal, and that's it's limit. If that's the case, then the new thermostat will be most likely ok.

Are your under manifold hoses hooked up correctly - is the heater valve in the correct flow direction ??

When the heater and blower fan is on high heat, is there hot air coming out ?? (air locks can be stubborn)

I always thought the rad upper hose will be quite hot at normal op temp (hot water exiting the engine), and the lower to be quite cooler (after rad cools).

 

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Posted: Sat Nov 24, 2007 4:11 pm 
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You's wouldnt Fken beilive it...

99% of you's were right

$310 later, we find, the old thermostat and new thermostat, werent opening, brand new faulty...

we put both in a glass, boiled the kettle, and poured water in, and none opened.

So i have a old one that was good but it broke, and a new one that was broke from factory ?

time for a new thermostat

 

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