Overheated and coolant spewed out of header tank

[mikeonb4c]

Cold water (from the hose) will shut the thermostat down won't it so the whole system isn't purged of air?

[haydn callow]

Have pm'd "bleeding" instructions........Putting cold water through and if that's all your doing will not work....
DANGER>>DANGER

[mikeonb4c]

...and in case you want it from the horses mouth that is the Mazda Bongo Workshop manual:

Once you have drained the system and tightened the radiator drain plug

10. Set the air bleed hose downward as shown in the diagram [hooked over steering wheel]
11. Set down a container for draining coolant
12. Remove the [radiator] filler cap
13. Fill the coolant to the upper surface of the radiator
14. Attach the filler cap
15. Fill the coolant to the radiator reservoir tank flange surface

Caution
* Remove the reservoir tank cap to bleed air
* A/C Switch should be turned off

16.Start the engine and idle for approximately 10 minutes to warm up

Caution
If any of the following phenomena occurs, stop the engine to lower the water temperature as filling is incomplete. After water temperature is lowered, repeat steps from (15)
(1) Water temperature rises too high
(2) Cooling fan operates
(3) Steam comes out constantly from the air bleed hose

17. Perform the following operations after the engine is warmed up
(1) Keep the engine running at 2500rpm for 6 minutes

Warning
When checking the lower radiator hose (radiator side), be aware of burns or getting caught in the cooling fan.
(2) Check the lower radiator hose (radiator side) is warm. If it is cold, keep the engine running at 2500rpm for 3 minutes, then check again if the radiator hose is warm.
(3) Fill with coolant up to the radiator reservoir tank flange surface

Warning
When attaching the air bleed hose plug, the air bleed hose should be facing upwards as it could cause a burn if it leaks on you
(4) Attach the air bleed hose plug as shown in the diagram
(5) Attach the reservoir tank cap
(6) Keep the engine running at 25000rpm for 5 minutes
(7) Keep the engine idling for 3 minutes
(8) Keep the engine running at 25000rpm for 5 seconds then return to idling status. Repeat this 4 to 5 times.

18. Stop the engine and check the coolant level after coolant temperature has lowered.

[francophile1947]

(6) Keep the engine running at 25000rpm for 5 minutes
(7) Keep the engine idling for 3 minutes
(8) Keep the engine running at 25000rpm for 5 seconds then return to idling status. Repeat this 4 to 5 times.

18. Stop the engine and check the coolant level after coolant temperature has lowered.

[/quote]

Mine won't rev that high - does that mean I can't bleed it?

[mikeonb4c]

(6) Keep the engine running at 25000rpm for 5 minutes
(7) Keep the engine idling for 3 minutes
(8) Keep the engine running at 25000rpm for 5 seconds then return to idling status. Repeat this 4 to 5 times.

18. Stop the engine and check the coolant level after coolant temperature has lowered.

Mine won't rev that high - does that mean I can't bleed it? [/quote]

Oh bum That ypot was pointed out to me yonks ago and still I miss it

[scanner]

(6) Keep the engine running at 25000rpm for 5 minutes
(7) Keep the engine idling for 3 minutes
(8) Keep the engine running at 25000rpm for 5 seconds then return to idling status. Repeat this 4 to 5 times.

18. Stop the engine and check the coolant level after coolant temperature has lowered.

Mine won't rev that high - does that mean I can't bleed it?

If it did rev that high it wouldn't need bleeding...................... ever again.

[samuel]

Sorted.

Bongo's back to normal running.

Touch wood, cross fingers and i think all is well.

See you at Stourport on Wednesday.

Thanks for all your support.

Tim

[the janner vanner]

great news Tim, phew!!!!!!!!!!! glad it's sorted

[samuel]

Thanks Dave.

Gonna give her good thrash across to Perranporth this afternoon. That will test her.

Will call you and arrange time to meet at Exeter Services.

Cheers

Tim

[missfixit70]

Fingers crossed Tim See you guys on wednesday

[blobber]

great news Tim, looking forward to meeting our younger twin.

[francophile1947]

Gonna give her good thrash across to Perranporth this afternoon. That will test her.

Was everything OK?

[samuel]

Kirsty -Uncross your fingers!!

Blobber - Yep. Can't wait to meet our TWIN!!

Francophile - Everything turned out fine and thanks for asking.

Did as i said and gave her good run to Truro, then to Perranporth before returning at high crusing speed across A30 back to S'nostl. No loss of water, exhaust is fine, oil is clean, no sign of emulisfied oil and coolant is visually clear. Temperature at 4/10ths of gauge as normal. Chuffed to nuts!!

[helen&tony]

Hi
So glad you got it sorted out, Tim, yours is one smart Bongo...and now with a cooling system that's the "Mutt's Nuts"
Cheers
Helen

[francophile1947]

Excellent news