Overheating - Page 2

arcturus · Jul 10th, 2011, 09:23

Hi again, the weather has cooled down here and I haven't Had the 140 out but ran it stationary in garage. Fitted new bottle cap and ran the engine with the heater full on.I started with the bottle on the min' and it didn't overflow. I also ran it for a short time with the cap off to allow any air which might be there to escape. I will top it up to max and see what happens. In the mean time I was thinking about fitting an electric fan, one the stayed on after switching off untill the temp' fell. Any coments or sugestions. Would a viscous fan do that? I' not sure if it would.

940_Turbo · Jul 10th, 2011, 10:31

I wouldn't top it up to the max when cold; the coolant has to go somewhere when it gets hot and expands..

Michael J · Jul 10th, 2011, 10:33

Viscous-coupled fan only turns when the engine is running.

john h · Jul 10th, 2011, 13:19

The fan shroud is the black plastic part immediately behind the radiator. Does yours not have that?

John

arcturus · Jul 10th, 2011, 13:49

No, just the rad. What year is the one in pic? Mine is 68. maybe absent from earlier series?

john h · Jul 11th, 2011, 18:28

Quote:

Originally Posted by arcturus

No, just the rad. What year is the one in pic? Mine is 68. maybe absent from earlier series?

I don't know - just a photo I googled.

I'm not a 140 expert I'm afraid - maybe someone else can assist with your question.

I can tell you that my 1969 164 had a fan shroud, but of course that doesn't prove yours should have one.

John

80sRich · Jul 11th, 2011, 19:04

Quote:

Originally Posted by john h

I can tell you that my 1969 164 had a fan shroud, but of course that doesn't prove yours should have one.

John

My '71 144 doesn't have a fan shroud either, but again that doesn't mean it didn't have one originally.

arcturus · Jul 11th, 2011, 20:21

Well, so far I have run the car with the heater full on, stationary and in open garage, Also fitted new cap to bottle. It will overflow after running about 10 min's only when I switch it off. I am now running it with the bottle filled only to just above min' and It's a lot better. I think that it could really do with a larger expansion space in the bottle. I'm still wondering about the 10 lb cap. Thinking about it it would only raise the boiling off point but they seem to be fitted to later cars My handbook states 10lb for B20 I would love to have a definitave answer to that. Thank's for all your input

arcturus · Jul 14th, 2011, 09:02

I'm going to flush rad and then fit a new 'stat. See if that improves things.

arcturus · Aug 1st, 2011, 16:37

Up date. Fitted 82c thermostat plus 10 psi bottle and cap. Seems to have solved the problem. Will replace all hoses in near future to allow for higher pressure in system.

Jul 10th, 2011, 09:23	#11
arcturus arcturus Last Online: Yesterday 08:20 Join Date: Mar 2006 Location: Sagres Portugal	Hi again, the weather has cooled down here and I haven't Had the 140 out but ran it stationary in garage. Fitted new bottle cap and ran the engine with the heater full on.I started with the bottle on the min' and it didn't overflow. I also ran it for a short time with the cap off to allow any air which might be there to escape. I will top it up to max and see what happens. In the mean time I was thinking about fitting an electric fan, one the stayed on after switching off untill the temp' fell. Any coments or sugestions. Would a viscous fan do that? I' not sure if it would. __________________ life's too short to drink bad wine Last edited by arcturus; Jul 10th, 2011 at 09:25.

Jul 10th, 2011, 10:33	#13
Michael J Master Member Last Online: Jan 21st, 2018 16:48 Join Date: Nov 2010 Location: Nottingham	Viscous-coupled fan only turns when the engine is running. __________________ rollin' rollin' rollin'

Jul 10th, 2011, 13:19	#14
john h VOC Member Last Online: May 30th, 2024 11:13 Join Date: Jan 2007 Location: Huddersfield View Photos By: john h	The fan shroud is the black plastic part immediately behind the radiator. Does yours not have that? John __________________ XX

Jul 10th, 2011, 13:49	#15
arcturus arcturus Last Online: Yesterday 08:20 Join Date: Mar 2006 Location: Sagres Portugal	No, just the rad. What year is the one in pic? Mine is 68. maybe absent from earlier series? __________________ life's too short to drink bad wine

Jul 11th, 2011, 20:21	#18
arcturus arcturus Last Online: Yesterday 08:20 Join Date: Mar 2006 Location: Sagres Portugal	Well, so far I have run the car with the heater full on, stationary and in open garage, Also fitted new cap to bottle. It will overflow after running about 10 min's only when I switch it off. I am now running it with the bottle filled only to just above min' and It's a lot better. I think that it could really do with a larger expansion space in the bottle. I'm still wondering about the 10 lb cap. Thinking about it it would only raise the boiling off point but they seem to be fitted to later cars My handbook states 10lb for B20 I would love to have a definitave answer to that. Thank's for all your input __________________ life's too short to drink bad wine

Jul 10th, 2011, 10:31	#12
940_Turbo . Last Online: Jul 14th, 2013 14:28 Join Date: Dec 2009 Location: MK	I wouldn't top it up to the max when cold; the coolant has to go somewhere when it gets hot and expands..

Jul 14th, 2011, 09:02	#19
arcturus arcturus Last Online: Yesterday 08:20 Join Date: Mar 2006 Location: Sagres Portugal	I'm going to flush rad and then fit a new 'stat. See if that improves things. __________________ life's too short to drink bad wine

Aug 1st, 2011, 16:37	#20
arcturus arcturus Last Online: Yesterday 08:20 Join Date: Mar 2006 Location: Sagres Portugal	Up date. Fitted 82c thermostat plus 10 psi bottle and cap. Seems to have solved the problem. Will replace all hoses in near future to allow for higher pressure in system. __________________ life's too short to drink bad wine

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