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31st October 2021, 10:01 | #1 |
Avid contributor
MG ZT-T Join Date: Feb 2019
Location: Stockport
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Overheating problem solved - eventually!
2002 KV6 114k Miles
A few weeks ago, the dreaded "Engine Overheat" warning appeared and I managed to tiptoe about a mile and a half home. First thing I looked at was the expansion tank cap. The O-rings were pretty flat and my local garage kindly supplied some rings that were almost the same. No Luck. Next I noticed the fan wasn't running so decided to check the motor brushes. After a lot of bother with seized fasteners (much Dremel work here) I renewed the brushes. No luck. Taking it all apart again I saw the commutator was worn concave, so really goosed. I then fitted a new fan(2-speed, silver resistor); that worked ok but still overheating. Next, having felt the top hose was cold, I replaced the thermostat. https://www.the75andztclub.co.uk/for...=129825&page=9 post 90 Still no luck, top hose hot but coolant being expelled from the cap. So although thoughts of HGF were creeping into my mind, I bought a new cap. Joy of joys - all ok and back on the road! Quite how three things all went wrong at the same time I don't know but maybe running on engine overheat for 5 mins was the root cause. All this took about 3 weeks with weather interruptions and waiting for parts and I'd just had the front end re-painted requiring delicate handling. New fan £200 Brushes £50 ( passed on to another member) Thermostat £50 New cap £20 Gallons of OAT £32 It soon adds up!! |
1st November 2021, 11:52 | #2 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Where on earth did you buy the thermostat and brushes ???-------Well over priced.
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1st November 2021, 12:11 | #3 | |
Give to Learn
Freelander 2 Join Date: Aug 2010
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Quote:
https://engineeringcarbonproducts.co...variant/795934
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Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise " |
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1st November 2021, 14:54 | #4 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
It's still a cost effective repair compared with a completely new fan system though. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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