leaking auxiliary water pump

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Alan 480
480 Is my middle name
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Location: Aberdeen

Re: leaking auxiliary water pump

Post by Alan 480 » Tue May 31, 2016 11:51 am

480s partner wrote:Hope I am not asking a dumb question, but can I activate-test the pump as of now, like this (outside car, no coolant)?

I have a power supply unit of DC 12V (or 13,8V) up to 5 amps/ 7amps peak available, would it just be a matter of making the connections and see if I get response?
a quick run off a car battery will do no harm BUT as the seal is 'lubricated' / 'cooled' by water dont run too long.

to check if leak tight you could attach a long length of garden hose to it and fill with water and top of hose on second floor will give a decent 'static-head' :wink:
Alan

480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1

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480s partner
Knows an Aerodeck isn't a 480
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Joined: Wed Jul 12, 2006 11:44 pm

Re: leaking auxiliary water pump

Post by 480s partner » Tue May 31, 2016 6:35 pm

480s partner wrote:
Haynes manual keeps reffering to an elusive cylinder block drain plug "located below the inlet manifold near the oil pressure switch"...?

I may have found it!

I suspect this is the one:

Image

Picture was taken from above with cell phone with screen facing bulkead/camera facing back of the engine.

There seems to be a plastic or rubber washer between the plug and the block, so surely this can't be used for oil, right?

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480s partner
Knows an Aerodeck isn't a 480
Posts: 236
Joined: Wed Jul 12, 2006 11:44 pm

Re: leaking auxiliary water pump

Post by 480s partner » Tue May 31, 2016 6:37 pm

Alan 480 wrote:
480s partner wrote:Hope I am not asking a dumb question, but can I activate-test the pump as of now, like this (outside car, no coolant)?

I have a power supply unit of DC 12V (or 13,8V) up to 5 amps/ 7amps peak available, would it just be a matter of making the connections and see if I get response?
a quick run off a car battery will do no harm BUT as the seal is 'lubricated' / 'cooled' by water dont run too long.

to check if leak tight you could attach a long length of garden hose to it and fill with water and top of hose on second floor will give a decent 'static-head' :wink:

Thanks Alan, I will give it a try.

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480s partner
Knows an Aerodeck isn't a 480
Posts: 236
Joined: Wed Jul 12, 2006 11:44 pm

Re: leaking auxiliary water pump

Post by 480s partner » Wed Jun 01, 2016 7:31 pm

I made a little experiment today:

Suspended the pump, attached some hoses (one connected to shower :lol: )and let the water run through for a few minutes.

Image

When I turn the power on there is a small boost in water flow.

So, pump is working and apparently there are no leaks visible! :hopping:

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jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: leaking auxiliary water pump

Post by jamescarruthers » Wed Jun 01, 2016 7:54 pm

Impressed, well done!
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

Alan 480
480 Is my middle name
Posts: 1489
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: leaking auxiliary water pump

Post by Alan 480 » Thu Jun 02, 2016 11:37 am

480s partner wrote:I made a little experiment today:

Suspended the pump, attached some hoses (one connected to shower :lol: )and let the water run through for a few minutes.

Image

When I turn the power on there is a small boost in water flow.

So, pump is working and apparently there are no leaks visible! :hopping:
now connect the shower head to the outlet and you have a 'power shower' ? :lol:
Alan

480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1

mathrock
480 Newbie
Posts: 49
Joined: Sat Jan 05, 2019 2:57 pm

Re: leaking auxiliary water pump

Post by mathrock » Mon Jun 03, 2019 1:25 am

480s partner wrote:
Mon May 30, 2016 10:03 pm
Ok, new ring is in place and cleaned surfaces mate perfectly.

Image
I know this is an old post, but do you happen to know the o-ring size you used? The aux water pump on my 1993 turbo is leaking in the same spot yours is and I'd like to order a replacement to have it on hand before taking it out.

Thanks!

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