Air lock?
#1
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Air lock?
Think i have an airlock, as coolant keeps bubbling up from the plastic thingy near the battery and my heaters are cold also i keep putting coolant (water) in the other water thingy near the turbo as that just disappears any help much appriciated
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#8
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cant find any leaks but the coolant has been changed recently, does tend to get a lil hot thou and theres a hissing sound coming from the tank near the turbo
#10
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There have been a few very detailed threads on filling the Scooby with coolant
To avoid air locks (if it is an air locks)
I seem to remember the America site had a very detailed one
To avoid air locks (if it is an air locks)
I seem to remember the America site had a very detailed one
#11
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There's one on here: I posted it myself.
Basically, you drain it all.
Then refill by removing the rearmost pipe from the coolant reservoir on top of the engine, stuff a funnel down it and pour in the rquired amount of anti-freeze at the correct dilution S L O W L Y.
Don't let it gurgle or gulp.
Once you see coolant in the reservoir on top of the engine, remove funnel, refit hose and fill.
Now start the engine, filler cap still off. Let it run until the fans kick in, mopping up, or topping up as necessary.
Once the fans kick in, switch off, replace cap and drive it round the block as normal...no mucking about
When you get back, allow to cool and check level at that same reservoir, top up if necessary again. Replace cap. Job's a good 'un.
Be aware: THERE IS NO KNOWN WAY TO PROPERLY ELIMINATE AN AIRLOCK, BURP THE SYSTEM ETC. Just do the above.
And whoever did it last time: don't use him again.
Basically, you drain it all.
Then refill by removing the rearmost pipe from the coolant reservoir on top of the engine, stuff a funnel down it and pour in the rquired amount of anti-freeze at the correct dilution S L O W L Y.
Don't let it gurgle or gulp.
Once you see coolant in the reservoir on top of the engine, remove funnel, refit hose and fill.
Now start the engine, filler cap still off. Let it run until the fans kick in, mopping up, or topping up as necessary.
Once the fans kick in, switch off, replace cap and drive it round the block as normal...no mucking about
When you get back, allow to cool and check level at that same reservoir, top up if necessary again. Replace cap. Job's a good 'un.
Be aware: THERE IS NO KNOWN WAY TO PROPERLY ELIMINATE AN AIRLOCK, BURP THE SYSTEM ETC. Just do the above.
And whoever did it last time: don't use him again.
#19
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When you refilled it did you have the heater on hot with the fan running? The heater matrix is probably where the air lock is if its blowing out cold.
Try running the engine with the expansion tank cap off and the heater and blower on. Squeeze the pipes while its running and look for bubbles.
Try running the engine with the expansion tank cap off and the heater and blower on. Squeeze the pipes while its running and look for bubbles.
#20
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How do you know it's not the rad cap? It sounds as if it's not pressurised.
Could be water pump too.......the impeller comes loose on it's shaft, so the pump goes round but the water doesn't. that will overheat what's close to the engine.
Could be water pump too.......the impeller comes loose on it's shaft, so the pump goes round but the water doesn't. that will overheat what's close to the engine.
Last edited by alcazar; 04 April 2014 at 01:13 PM.
#22
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got a new rad cap, seems like when fill up the top tank near the turbo it drains into the plastic 1 as filled plastic 1 to minimal level, went for a drive had a look and was above max
#24
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get this, drained rad again, filled up metal tank near turbo, put nothing in plastic one near battery, went for spin, hardly any in metal tank but plastic one was full and bubbling