2.8 got HOT

[trekster]

There is no bleed on the 2.8 from what I have found, the radiator cap is the highest point in the cooling system, And if there is one somewhere, I have yet to find it.....

[patrol2.8]

these are the causes for over heating according to the manual
Overheating Cause Analysis
Symptom Check items
Cooling
system parts
malfunction
Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat stuck closed —
Damaged fins
Dust contamination or paper
clogging
Mechanical damage
Clogged radiator cooling tube
Excess foreign material (rust,
dirt, sand, etc.)
Reduced air flow
Cooling fan does not operate
— —
Fan coupling does not operate
High resistance to fan rotation
Damaged fan blades
Damaged radiator shroud — — —
Improper coolant mixture ratio — — —
Poor coolant quality — — —
Insufficient coolant
Coolant leaks
Cooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap
Loose
Poor sealing
Radiator
O-ring for damage, deterioration
or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tank
Exhaust gas leaks into cooling
system
Cylinder head deterioration

[patrol2.8]

And according to the book this is how you refill it and bleed it
—REFILLING ENGINE COOLANT—
10. Install reservoir tank, radiator drain plug, and cylinder block
drain plugs.
+ Apply sealant to the thread of cylinder block drain plug.
Cylinder block drain plug:
: 34 - 44 Nzm (3.5 - 4.5 kg-m, 25 - 33 ft-lb)
11. Fill radiator and reservoir tank with coolant up to the MAX level
and install radiator cap.
For coolant mixture ratio, refer to MA-11.
Coolant capacity (With reservoir tank): ! (Imp qt)
RHD models
Without rear heater 11.8 (10-3/8)
With rear heater 12.9 (11-3/8)
LHD models
Without rear heater 11.6 (10-1/4)
With rear heater 12.7 (11-1/8)
Reservoir tank capacity (for MAX level):
1.2 ! (1-1/8 Imp qt)
Pour coolant through coolant filler neck slowly to allow air in
system to escape.
12. Warm up engine to normal operating temperature.
13. Run engine at 2,000 rpm for 10 seconds and return to idle
speed.
+ Repeat 2 or 3 times.
Watch coolant temperature gauge so as not to overheat the
engine.
14. Stop engine and cool it down.
+ Cool down using a fan to reduce the time.
15. Remove the radiator filler cap and check coolant level.
+ If necessary, refill radiator up to filler neck with coolant.
16. Refill reservoir tank to Max line with coolant.
17. Repeat step 12 through step 16 two or more times.
18. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 2,000 rpm with heater temperature
control set at several positions between COOL and HOT.
+ Sound may be noticeable at heater water cock.
19. If sound is heard, bleed air from cooling system by repeating
steps 12 through 16 until coolant level no longer drops.
+ Clean excess coolant from engine.
SMA003D
SMA182B
SMA412B
SMA004D
ENGINE MAINTENANCE
Changing Engine Coolant (Cont’d)
MA-

[krbrooking]

There is no bleed on the 2.8 from what I have found, the radiator cap is the highest point in the cooling system, And if there is one somewhere, I have yet to find it.....

I think there is on under the inter cooler at the back along the fire wall where the heater hoses are, unless mine is an add on.


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[trekster]

I think there is on under the inter cooler at the back along the fire wall where the heater hoses are, unless mine is an add on.


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Maybe so, I'm used to the bleed generally being at the highest point of the system to get the air out, I'll have to have a look at mine as it would be interesting to know, mine definitely has none on the thermostat housing as that is 1/3 of the way down the motor.

Cheers,
Eric.


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[patrol2.8]

2.8s going by the book can only be bled with the radiator cap off re above post tells how its done its an easy job to do

[krbrooking]

Mine must be an add on then as it's the highest point pretty much in line with the rocker cover.


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[chipppa]

on this theme of over heating is the a way to tell how accurate my heat gauge is working?

[P4trol]

Mine must be an add on then

Mine has it too.

As for accuracy, it's extremely accurate if you use it as a cold/normal/too hot indication.

Ecu talk.

[brendi]

thanks for your help guys re bled the cooling system and now all is good atm