overheating

Technical questions and answers about the Mazda Bongo

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andyreality7

overheating

Post by andyreality7 » Mon Jul 24, 2006 12:49 pm

took my van for mot it passed hurray.but the temperature gauge showing
hot hot hot.expansion tank, bubbling over.changed thermostat,did not see a lot wrong with the old one.filled it back up with coolant .took the thingey out of bleed pipe .no change coolant seems not to be moving .heating on full
cold air comes out and a bit of a screech when i start her up and the van
where do i go from here? shall i change the water pump next ?and is it easy job for a novice .
Rkkibongo

Post by Rkkibongo » Mon Jul 24, 2006 1:33 pm

Check all the belts first, a screech is quite often a drive belt slipping.
Ozric

Post by Ozric » Mon Jul 24, 2006 2:13 pm

I do take it that you had the engine running when you say the coolant wasn't moving. If so I'd go with the water pump, but I ain't no expert.
alant54
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Post by alant54 » Mon Jul 24, 2006 7:47 pm

Wait for Peter Humphrey to pick up this topic.....he is our resident expert on overheating.....Alan
Alan...still plodding on....!
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Peg leg Pete
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Post by Peg leg Pete » Mon Jul 24, 2006 10:12 pm

Thanks Alan :oops: not true but had my fair share of problems!
Well I have not had much to do with the water pump, Andy have you checked the belts as suggested?
When you opened up the bleed pipe, did you not get any water flow, I wonder if you may have a blockage somewhere, perhaps the radiator needs a flush out. When I had my overheating problems I Flushed and better flushed the radiator, replaced the thermostat, the radiator cap, and a dodgy looking hose. My old thermostat was a little slow to open, my waterpump is a little noisy, but I was told it only sloshes a little water about, by a fellow in the know! I am sure someone will tell me the opposite. I have no experience of removing the waterpump, but sure other members will be able to help you. good luck
Image Pete
andyreality7

overheating

Post by andyreality7 » Wed Jul 26, 2006 4:46 pm

flushed rad out,did not see any see gunk come out though topped the ystem back up seems to have done the trick heaters are working again
gauge staying in middle,coolant circulating.belt a bit loose could not figger
how to tighten it s the one under the alternator what is that just under the alternator anyway its got 4 goldy copper thin bolts holding it on
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Peg leg Pete
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Post by Peg leg Pete » Wed Jul 26, 2006 5:07 pm

Hope it stays that way :wink: The guage I mean :wink: just keep an eye on the coolant level :lol:
Image Pete
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