Heater update.....not good :( - Page 2

48pop · Sep 19th, 2007, 21:03

OK, tried again tonight, same result.....The bottom of the radiator and the bottom hose are stone cold, and thats after 20 mins fast idle and a run around the block......

Water flows out of the drain ****...I'm wondering if there is a blockage somewhere in the bottom of ther rad, seems like no water is circulating.

I dumped the thermostat in boiling water, it opened up fine.

I'm flummuxed, because with an open thermostat, it runs cool.....never getting above the middle point on the gauge.

Any thoughts?

Cheers
Gerry

JIM C · Sep 19th, 2007, 21:54

I think I would remove the radiator and try back flushing it.

48pop · Sep 20th, 2007, 14:45

OK, had the rad out, back flushed, flows freely, same on the engine block, what goes in comes back out in real time.....

Popped in the stat, very carefully filled it, "burped" the top hose........No result, temp still rises, rad does not get hot at bottom.

Spoke with an old mate who used to be in the rad business, descibed the problem...he imediatly diagnosed a blocked rad. He says the flow test with a garden hose will always give a good result....you need a proper test rig for testing flow....

So, off now to find out the cost of a rebuild....

Cheers
Gerry

48pop · Sep 20th, 2007, 15:20

Rebuild with new core....£70+ VAT + labour, new £127 delivered.....Hmmmm decisions decisions...

BillKat · Sep 20th, 2007, 16:01

New sounds better, but I got a new Volvo 740 alloy one for £70 minus the unmentionable so might be worth more shopping around, unless there's a Choice of One : )

48pop · Sep 20th, 2007, 17:03

Whit ! £70...

and I thought £127 was not too bad......Supply and demand I suppose..Going to take it for testing tomorrow just to make sure.

Its a family firm, 70 yrs on the same site, the only one who didn't say, "a Volvo whatazon??", when I called...In fact he's doing a 144 rad today.....

BillKat · Sep 20th, 2007, 19:29

LOL 'whatazon'

Brand spankers in the box it was, most posh : ) Maybe it is a supply thing, newer car and that.

48pop · Sep 21st, 2007, 16:09

Well, the rad was fine apart from a small leak....Guess its an airlock after all....

Sep 19th, 2007, 21:03	#11
48pop Senior Member Last Online: Feb 13th, 2019 21:41 Join Date: Apr 2007 Location: Near Glasgow	OK, tried again tonight, same result.....The bottom of the radiator and the bottom hose are stone cold, and thats after 20 mins fast idle and a run around the block...... Water flows out of the drain ***...I'm wondering if there is a blockage somewhere in the bottom of ther rad, seems like no water is circulating. I dumped the thermostat in boiling water, it opened up fine. I'm flummuxed, because with an open thermostat, it runs cool.....never getting above the middle point on the gauge. Any thoughts? Cheers Gerry __________________ ________________________________________ Gerry (nr Glasgow) Last edited by 48pop; Sep 19th, 2007 at 22:16.*

Sep 19th, 2007, 21:54	#12
JIM C Forum Support Team Last Online: Jul 4th, 2021 16:28 Join Date: Dec 2003 Location: Scotland View Photos By: JIM C	I think I would remove the radiator and try back flushing it. __________________

Sep 20th, 2007, 14:45	#13
48pop Senior Member Last Online: Feb 13th, 2019 21:41 Join Date: Apr 2007 Location: Near Glasgow	OK, had the rad out, back flushed, flows freely, same on the engine block, what goes in comes back out in real time..... Popped in the stat, very carefully filled it, "burped" the top hose........No result, temp still rises, rad does not get hot at bottom. Spoke with an old mate who used to be in the rad business, descibed the problem...he imediatly diagnosed a blocked rad. He says the flow test with a garden hose will always give a good result....you need a proper test rig for testing flow.... So, off now to find out the cost of a rebuild.... Cheers Gerry __________________ ________________________________________ Gerry (nr Glasgow)

Sep 20th, 2007, 15:20	#14
48pop Senior Member Last Online: Feb 13th, 2019 21:41 Join Date: Apr 2007 Location: Near Glasgow	Rebuild with new core....£70+ VAT + labour, new £127 delivered.....Hmmmm decisions decisions... __________________ ________________________________________ Gerry (nr Glasgow)

Sep 20th, 2007, 17:03	#16
48pop Senior Member Last Online: Feb 13th, 2019 21:41 Join Date: Apr 2007 Location: Near Glasgow	Whit ! £70... and I thought £127 was not too bad......Supply and demand I suppose..Going to take it for testing tomorrow just to make sure. Its a family firm, 70 yrs on the same site, the only one who didn't say, "a Volvo whatazon??", when I called...In fact he's doing a 144 rad today..... __________________ ________________________________________ Gerry (nr Glasgow)

Sep 20th, 2007, 16:01	#15
BillKat Senior Member Last Online: Aug 16th, 2023 21:45 Join Date: Dec 2003 Location: Cambs	New sounds better, but I got a new Volvo 740 alloy one for £70 minus the unmentionable so might be worth more shopping around, unless there's a Choice of One : )

Sep 20th, 2007, 19:29	#17
BillKat Senior Member Last Online: Aug 16th, 2023 21:45 Join Date: Dec 2003 Location: Cambs	LOL 'whatazon' Brand spankers in the box it was, most posh : ) Maybe it is a supply thing, newer car and that.

Sep 21st, 2007, 16:09	#18
48pop Senior Member Last Online: Feb 13th, 2019 21:41 Join Date: Apr 2007 Location: Near Glasgow	Well, the rad was fine apart from a small leak....Guess its an airlock after all.... __________________ ________________________________________ Gerry (nr Glasgow)

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