Click here to return to the home page.
Image of a road.
Who's Online Now
16 registered members (Robbie, +8Rich, Stringers Best Mate, Grumpy2, Tresco, Sir Percival, Richard Wood, David_E, Graham, G4FUJ, TBM, Dab of oppo, mph, Fuel.inj, Ricardo, Gordon D, Hamwich), 59 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 256
John V6 120
Peter J 119
Hamwich 111
Newest Topics
Radio reception
by Riverstar. 26/01/20 12:51 PM
Coronavirus / Corona Virus
by Cat302. 26/01/20 01:54 AM
Wiper end caps
by David_E. 25/01/20 10:19 PM
Speedometer Calibration
by planenut. 25/01/20 09:02 PM
Easy-Up Hood stay
by Themorganeer. 25/01/20 07:37 PM
Aerial Fitting "HELP"
by Nostalgiajohn. 25/01/20 07:19 PM
Germany - an aera of MORGAN thieves?
by xc68anc. 25/01/20 02:01 PM
Latest Photos
New year walk
Seals and wreck of the Ythan estuary,
Saint Ex the Morgan in all its glory
Bevel box oil leak
Hogmanay Run
Newest Members
craig123, Martin Medland, banjo2005, kailambers, Martin Peel
6812 Registered Users
Forum Statistics
Forums34
Topics37,081
Posts601,729
Members6,812
Most Online1,033
Dec 28th, 2019
Today's Birthdays
No Birthdays
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
2011 +4 Overheating - But Temp Indicating Low #541993
10/11/18 11:21 AM
10/11/18 11:21 AM
Joined: Jan 2010
Posts: 570
Lampeter, Wales
Jon G4LJW Offline OP
Talk Morgan Regular
Jon G4LJW  Offline OP
Talk Morgan Regular

Joined: Jan 2010
Posts: 570
Lampeter, Wales
I just got back from doing only 10 miles, and was surprised to see steam coming out of the bonnet.

The temp gauge was registering something like 80 I think. Am waiting for things to cool before checking coolant level, but I don't understand the temperature reading.

Any thoughts?

Thanks.

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #541995
10/11/18 11:24 AM
10/11/18 11:24 AM
Joined: Jun 2015
Posts: 351
North Somerset, UK
D
Deejay Offline
Learner Plates Off!
Deejay  Offline
Learner Plates Off!
D

Joined: Jun 2015
Posts: 351
North Somerset, UK
You didn’t happen to splash through a puddle near home? The CAT gets extremely hot under the wing, so if it got wet might very well issue lots of steam from under bonnet?


Doug

2011 +4 in Rich Maroon
Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Deejay] #541997
10/11/18 11:27 AM
10/11/18 11:27 AM
Joined: Jan 2010
Posts: 570
Lampeter, Wales
Jon G4LJW Offline OP
Talk Morgan Regular
Jon G4LJW  Offline OP
Talk Morgan Regular

Joined: Jan 2010
Posts: 570
Lampeter, Wales
Originally Posted By Deejay
You didn’t happen to splash through a puddle near home? The CAT gets extremely hot under the wing, so if it got wet might very well issue lots of steam from under bonnet?


Ah - very interesting - lots of rain earlier today, and I went through several very large puddles!

Would that also affect the temp gauge?

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #542005
10/11/18 12:19 PM
10/11/18 12:19 PM
Joined: Dec 2009
Posts: 22,005
Devonshire
+8Rich Online content
Member of the Inner Circle
+8Rich  Online Content
Member of the Inner Circle

Joined: Dec 2009
Posts: 22,005
Devonshire
Jon, the achiles heel on the newer models is the plastic top and bottomed alloy radiators - with the car flexing it soon finds a weak spot. Most replace these with an all aluminium one. With luck it'll be a loose hose.


Regards Richard

1999 Indigo Blue +8
2009 4/4 Sport Green
1994 Connaught Green +8





Re: 2011 +4 Overheating - But Temp Indicating Low [Re: +8Rich] #542013
10/11/18 12:29 PM
10/11/18 12:29 PM
Joined: Jan 2010
Posts: 570
Lampeter, Wales
Jon G4LJW Offline OP
Talk Morgan Regular
Jon G4LJW  Offline OP
Talk Morgan Regular

Joined: Jan 2010
Posts: 570
Lampeter, Wales
Thanks Rich - I'll look out for that.


Originally Posted By +8Rich
Jon, the achiles heel on the newer models is the plastic top and bottomed alloy radiators - with the car flexing it soon finds a weak spot. Most replace these with an all aluminium one. With luck it'll be a loose hose.

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #542046
10/11/18 03:24 PM
10/11/18 03:24 PM
Joined: Jan 2010
Posts: 570
Lampeter, Wales
Jon G4LJW Offline OP
Talk Morgan Regular
Jon G4LJW  Offline OP
Talk Morgan Regular

Joined: Jan 2010
Posts: 570
Lampeter, Wales
I don't think there's anything loose.

I took the car around the block - just 1.5 miles - and the engine seems very hot again.

Coolant level looks good though.

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #542047
10/11/18 03:25 PM
10/11/18 03:25 PM
Joined: Jul 2014
Posts: 523
Cornwall
griffo Offline
Talk Morgan Regular
griffo  Offline
Talk Morgan Regular

Joined: Jul 2014
Posts: 523
Cornwall
I would endorse what deejay says. It's almost certainly that. The cat gets very hot (it has to to work) which does not affect coolant temp gauge reading. It's difficult at this time of the year I know but if you can avoid splashing a hot catalyst with ice cold puddles it's a good idea. They have been known to crack and fail on Morgans because of this. I insulate my cat with heat shielding material which helps.

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: griffo] #542048
10/11/18 03:33 PM
10/11/18 03:33 PM
Joined: Jan 2010
Posts: 570
Lampeter, Wales
Jon G4LJW Offline OP
Talk Morgan Regular
Jon G4LJW  Offline OP
Talk Morgan Regular

Joined: Jan 2010
Posts: 570
Lampeter, Wales
Thanks for that - it was impossible to drive around some of the big puddles today!

Originally Posted By griffo
I would endorse what deejay says. It's almost certainly that. The cat gets very hot (it has to to work) which does not affect coolant temp gauge reading. It's difficult at this time of the year I know but if you can avoid splashing a hot catalyst with ice cold puddles it's a good idea. They have been known to crack and fail on Morgans because of this. I insulate my cat with heat shielding material which helps.

Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #542052
10/11/18 03:49 PM
10/11/18 03:49 PM
Joined: Apr 2014
Posts: 4,397
Llanelli
Ray Offline
Part of the Furniture
Ray  Offline
Part of the Furniture

Joined: Apr 2014
Posts: 4,397
Llanelli
Originally Posted By Jon G4LJW
I don't think there's anything loose.

I took the car around the block - just 1.5 miles - and the engine seems very hot again.

Coolant level looks good though.
. Check the fan is working. I once managed to knock a spade connection off going through a flood.


.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
Re: 2011 +4 Overheating - But Temp Indicating Low [Re: Jon G4LJW] #542054
10/11/18 03:59 PM
10/11/18 03:59 PM
Joined: Dec 2011
Posts: 292
South West France
C
CBY Offline
Learner Plates Off!
CBY  Offline
Learner Plates Off!
C

Joined: Dec 2011
Posts: 292
South West France
Check the temperature of the lower hose (output) of the radiator. If the temperature is relativity warm vs the upper hose: thermostat problem.


Regards
2005 PLUS 4
Page 1 of 2 1 2

Moderated by  Aeroman, Simon 

Powered by UBB.threads™ PHP Forum Software 7.7.1