Engine overheated - lower coolant hoses

baggy798 · Jul 17th, 2012, 01:37

Engine overheated a couple days ago in slower traffic, the temp gauge touched the red area for about a mile before I could pull over. I had to put in 6 litres. So before that there's a good chance I covered 50 miles with only about 2 litres left in the system. Hope I haven't damaged anything.

The two coolant hoses under the turbo were on their last legs, and the hose clips were super overtightened:

Part numbers:
9161383 - Hose - £6.60
9161384 - Hose - £9.96

I also changed the hose clips to 'JCS HiGrip Stainless' types, as they have a wider 13mm band and don't cut into the hose. (14-22mm size)

Other parts that I replaced at the same time:

9445462 - Filler Cap (green, 150kpa) - £14.64
273459 - Thermostat (87c) - £17.04

david philips · Jul 17th, 2012, 09:02

first, really hope the engine is ok , good luck with that.

this thread just shows what i am always ranting on about , one of the best things to do when maintaining a car is a good visual look, tyres brakes hoses radiator wiring and belts.

940_Turbo · Jul 17th, 2012, 09:15

I'd keep an eye on the headgasket, those hoses failing have a nasty habit of taking it out.

I replace mine every few years, they fail often, probably because they get splashed by oil every time the filter is changed.

gpl1968 · Jul 17th, 2012, 20:36

One more good reason to to fit a coolant level warning lamp/sensor.

Mine paid for itself when the heater control valve started dumping water onto the road.

baggy798 · Jul 20th, 2012, 16:31

Oh crap! Now its leaking oil at the oil/water sandwich:

Looks like I now need part number 5 on this diagram. Has anyone removed the oil/water sandwich thing before? Is it a simple bolt to remove or is a special tool required?

940_Turbo · Jul 20th, 2012, 21:04

It just unbolts no special tools. I wouldn't be surprised if the block seal is leaking. The bolt on the bracket (6) has a weird habit of snapping and then the whole thing moves.

baggy798 · Jul 20th, 2012, 21:23

Hi,

Sorry, I meant undoing the threaded thing (8). I think the block seal is OK, I certainly don't want to disturb it if I can get away with it.

940_Turbo · Jul 20th, 2012, 21:52

Quote:

Originally Posted by baggy798

Hi,

Sorry, I meant undoing the threaded thing (8). I think the block seal is OK, I certainly don't want to disturb it if I can get away with it.

It's just a nut, nothing special

Dr. Rog · Jul 21st, 2012, 10:50

Great thread, thanks.

Definitely a maintenance task for anyone hoping their car will stay on the road, and a pretty cheap one at that.

Is this arrangement a sort of elementary oil cooler? My auto has the gearbox oil going through the water radiator, is this the same concept?

gpl1968 · Jul 21st, 2012, 11:23

Quote:

Originally Posted by Dr. Rog

Great thread, thanks.

Definitely a maintenance task for anyone hoping their car will stay on the road, and a pretty cheap one at that.

Is this arrangement a sort of elementary oil cooler? My auto has the gearbox oil going through the water radiator, is this the same concept?

Yes it it is a basic water-oil charge cooler.
It also repositions the oil filter (on the turbo models) so as not to foul the turbocharger.

Interestingly, my old 1990 2.3 Turbo had a proper oil cooling rad mounted next to the main radiator:

Jul 17th, 2012, 01:37	#1
baggy798 🤍💙💗 Last Online: Yesterday 14:41 Join Date: Mar 2006 Location: Lichfield	Engine overheated - lower coolant hoses Engine overheated a couple days ago in slower traffic, the temp gauge touched the red area for about a mile before I could pull over. I had to put in 6 litres. So before that there's a good chance I covered 50 miles with only about 2 litres left in the system. Hope I haven't damaged anything. The two coolant hoses under the turbo were on their last legs, and the hose clips were super overtightened: Part numbers: 9161383 - Hose - £6.60 9161384 - Hose - £9.96 I also changed the hose clips to 'JCS HiGrip Stainless' types, as they have a wider 13mm band and don't cut into the hose. (14-22mm size) Other parts that I replaced at the same time: 9445462 - Filler Cap (green, 150kpa) - £14.64 273459 - Thermostat (87c) - £17.04 Last edited by baggy798; Jul 17th, 2012 at 01:39.

Jul 17th, 2012, 09:02	#2
david philips panic captain manwaring ? Last Online: Jul 2nd, 2018 17:16 Join Date: Aug 2011 Location: craggy island	hope the engine is ok. first, really hope the engine is ok , good luck with that. this thread just shows what i am always ranting on about , one of the best things to do when maintaining a car is a good visual look, tyres brakes hoses radiator wiring and belts.

Jul 17th, 2012, 20:36	#4
gpl1968 VOC Member Last Online: May 5th, 2024 23:42 Join Date: Jun 2007 Location: Wirral View Photos By: gpl1968	One more good reason to to fit a coolant level warning lamp/sensor. Mine paid for itself when the heater control valve started dumping water onto the road. __________________ Gavin 1997 945 CD (B230FK) [RIP: 1991 945 Turbo (B230FT) 1992 945 SE turbo (B200FT)]

Jul 21st, 2012, 10:50	#9
Dr. Rog Master Member Last Online: Oct 21st, 2017 22:15 Join Date: Aug 2010 Location: Kingsclere	Great thread, thanks. Definitely a maintenance task for anyone hoping their car will stay on the road, and a pretty cheap one at that. Is this arrangement a sort of elementary oil cooler? My auto has the gearbox oil going through the water radiator, is this the same concept? __________________ Cheers Rog Previously owned 1996 940 SE auto and GLE manual, both B230FK estates.

Jul 17th, 2012, 09:15	#3
940_Turbo . Last Online: Jul 14th, 2013 14:28 Join Date: Dec 2009 Location: MK	I'd keep an eye on the headgasket, those hoses failing have a nasty habit of taking it out. I replace mine every few years, they fail often, probably because they get splashed by oil every time the filter is changed.

Jul 20th, 2012, 16:31	#5
baggy798 🤍💙💗 Last Online: Yesterday 14:41 Join Date: Mar 2006 Location: Lichfield	Oh crap! Now its leaking oil at the oil/water sandwich: Looks like I now need part number 5 on this diagram. Has anyone removed the oil/water sandwich thing before? Is it a simple bolt to remove or is a special tool required?

Jul 20th, 2012, 21:04	#6
940_Turbo . Last Online: Jul 14th, 2013 14:28 Join Date: Dec 2009 Location: MK	It just unbolts no special tools. I wouldn't be surprised if the block seal is leaking. The bolt on the bracket (6) has a weird habit of snapping and then the whole thing moves.

Jul 20th, 2012, 21:23	#7
baggy798 🤍💙💗 Last Online: Yesterday 14:41 Join Date: Mar 2006 Location: Lichfield	Hi, Sorry, I meant undoing the threaded thing (8). I think the block seal is OK, I certainly don't want to disturb it if I can get away with it.

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