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MG TC
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Do you like or dislike the new dashboard ?
Yes I do like the new dashboard
100%
 100%  [ 7 ]
No I do not like the new dashboard
0%
 0%  [ 0 ]
Total Votes : 7

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peter scott



Joined: 18 Dec 2007
Posts: 6578
Location: Edinburgh

PostPosted: Wed Dec 23, 2020 6:18 pm    Post subject: Reply with quote

Perhaps I've just been unlucky but I've had two of the screwdriver slot type become leaky. The lever type seem to work well.

Peter
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Wed Dec 23, 2020 6:29 pm    Post subject: Reply with quote

peter scott wrote:
Perhaps I've just been unlucky but I've had two of the screwdriver slot type become leaky. The lever type seem to work well.

Peter


I think you must have been unlucky. I have fitted them
throughout my house and not had a leaky one yet.

The important thing is that the lever one doesn't leak as it could scald my foot. My wife saw what I had done and warned me about it! Shocked
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Bitumen Boy



Joined: 26 Jan 2012
Posts: 1499
Location: Above the snow line in old Monmouthshire

PostPosted: Fri Dec 25, 2020 2:18 am    Post subject: Reply with quote

Ray White wrote:
peter scott wrote:
Perhaps I've just been unlucky but I've had two of the screwdriver slot type become leaky. The lever type seem to work well.

Peter


I think you must have been unlucky. I have fitted them
throughout my house and not had a leaky one yet.

The important thing is that the lever one doesn't leak as it could scald my foot. My wife saw what I had done and warned me about it! Shocked


I've never come across one that leaks externally, which I think is what Peter means. I have seen them seize and thus become inapable of isolating anything; and sometimes they might pass a little water when ostensibly turned off, but (when used for their intended purpose!) not so much as to prevent you changing the washer in a tap or ball valve. On the whole though they seem pretty reliable for how little they cost.
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Fri Dec 25, 2020 12:30 pm    Post subject: Reply with quote

Seeing as I have an audience on Christmas Day Very Happy perhaps someone can help me with my car seat.

This seat came with the car but it is not original to it. In fact the seat is from an earlier TC. That detail aside, I would like to be able to use it. Unfortunately, although the seat cushions are fine, the squab (back rest) is in much worse condition than I thought.

The good thing is that it is not badly rusted. The bad news is that some of the cone springs have broken; 6 in fact. I have looked on the internet and the only new springs I can find are double cone. The ones I want are 12 gauge single cone coil.


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alanb



Joined: 10 Sep 2012
Posts: 514
Location: Berkshire.

PostPosted: Fri Dec 25, 2020 3:30 pm    Post subject: Reply with quote

Ray, there is a guy called Bobby Fettes who specialises in vintage car upholstery, he has a Facebook site, there have been many very good reviews for his work on the Morris 8 Facebook page, worth having a look he may be able to help
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Fri Dec 25, 2020 4:02 pm    Post subject: Reply with quote

alanb wrote:
Ray, there is a guy called Bobby Fettes who specialises in vintage car upholstery, he has a Facebook site, there have been many very good reviews for his work on the Morris 8 Facebook page, worth having a look he may be able to help


Alan. I know who you mean. I am sure he is excellent but he is in France and shipping pushes the price up.

I expect PJM Motors in Market Drayton will be my next best thing. They are making me a complete interior kit in a leather of my choice. (All the other kits contain vinyl elements that I don't want). I should think they will be able to point me in the right direction. I know they sell the complete seat assembly but I only want a few springs.!

I will have to replace the plywood back board as well because mine is splintered. It looks like someone might have driven over the seat back at some time - who knows?

I am now hoping to save money where I can. This interior kit is really as far as I want to go; with the hood and side screens I am already in for 3K.
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petelang



Joined: 21 May 2009
Posts: 311
Location: Nottingham

PostPosted: Sat Dec 26, 2020 10:55 am    Post subject: Reply with quote

Ray, I dismantled a Daimler DS420 bench seat and I'm sure the same type of springs were inside it. They're probably abundant in many saloons of the era.
Peter
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Sat Dec 26, 2020 11:42 am    Post subject: Reply with quote

petelang wrote:
Ray, I dismantled a Daimler DS420 bench seat and I'm sure the same type of springs were inside it. They're probably abundant in many saloons of the era.
Peter


That's what I thought. They are in upholstery and old beds too. I thought someone might be selling them on Ebay but apart from a French seller and some that were too small there is only the double cone type. I had some here for ages but thinking they would never get used and were Justin the way I threw them out.

MOTTO: Never throw anything away! Wink
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Fri Jan 01, 2021 10:49 pm    Post subject: Reply with quote

What follows is a tale of two sender bulbs.

I did a bit of head scratching when it came to installing the sender bulb for the electric fan. The top hose is very short meaning that the sender bulb would foul the thermostat. The only solution I could find was to fit the sender in from the bottom of the hose so it projects upwards into the radiator header tank. This is not ideal but it should work so long as the water level is kept topped up.



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The plan is to also have a water temperature gauge but I have yet to fit it's (larger) sender bulb as I need to find a 3/8" x 3/8" BSPP male/male pipe fitting. This will be attached to the nut on the capillary tube and screwed into the threaded hole in the rear of the radiator header tank.


Having unscrewed the blanking plug (photo) I have established that the thread is the same.



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Farmer John



Joined: 18 Feb 2010
Posts: 181
Location: Manawatu NZ

PostPosted: Sat Jan 02, 2021 8:38 pm    Post subject: mgtc Reply with quote

Hi Ray. The fan's temperature sensor goes in the bottom tank of the radiator.
John
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Wed Jan 06, 2021 4:37 pm    Post subject: Re: mgtc Reply with quote

Farmer John wrote:
Hi Ray. The fan's temperature sensor goes in the bottom tank of the radiator.
John


That's interesting, John. The instructions with the fan say to fit it in the top hose. I guess it would work in either place because the thermostat can be set to switch the fan at any temperature.
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Farmer John



Joined: 18 Feb 2010
Posts: 181
Location: Manawatu NZ

PostPosted: Thu Jan 07, 2021 8:16 am    Post subject: mgtc Reply with quote

Hello Ray. Yes, there is a perpetual argument surrounding the placement.
What you, Ray, really want to know is the temperature of the cooling water entering, in general terms, the bottom of the engine. (Mostly an engine is happy with 20-30 degrees lower than the thermostat opening temperature.) You do not know how much cooling the radiator is doing as it depends on airflow and air temperature. As you will realise there is a large mix of possibilities when you factor in wind direction, following another vehicle, street surface temperature in towns as well so we simply say lets measure the temperature of the coolant as it enters the engine and if it is too high we will ask Mr Sensor to switch on the fan. Your engine needs to cope with a long steep hill on a frosty morning as well as crawling slowly along hot tarmac behind an exhaust exiting in front of the radiator on a 30 degree day. I am guessing at your hot day.
Do not be misled by computer controlled engines using a sensor close to the thermostat, lots of engines are run up to 120 degrees internally because they have control of all systems, and run at high coolant pressure. Thats not a world you want your lovely MG venturing anywhere near.
That is basically what we need to cosider for a classic, Peugeot Renault VW and others all had a threaded boss in the bottom radiator tank in those days.
John
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alastairq



Joined: 14 Oct 2016
Posts: 1541
Location: East Yorkshire

PostPosted: Thu Jan 07, 2021 11:24 am    Post subject: Reply with quote

As an aside, I used to run rear engined Skodas in motorsports.

When pressed, the engine cooling systems had a tendency to suffer a sort of 'lag'.

Radiator, and electric cooling fan, were up front...with a long run of pipework to the rear, underneath the car.

The engine temp gauge sender was located at the rear, on the thermostat housing.
But the electric fan temp controlled switch was at the front, on the radiator.
By the time the radiator got itself hot enough to activate the fan, it was already too late, and chances were, the cylinder head gasket was on the point of blowing.
So, wise users would add in a manual over-ride switch on the dash, for the cooling fan [I fitted two fans...side by side, just in case one failed]

The switch could be used instead of the thermostatic switch, or in addition.
A weather eye could be kept on the temp gauge, especially when pressing....
I used to switch the fan on before starting an observed section, i any case.
But, if there were delays, I used to find the engine becoming over-cooled...

If I forgot, then by the time I got to the top of a section, the temp gauge would be in the uh-oh section....with the fan still not cutting in by itself.
First gear, and lots of revs, with little airflow...
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Thu Jan 07, 2021 12:16 pm    Post subject: Reply with quote

Many thanks John. It is precisely that kind of "back to basics" thinking that I am looking for.

I am scratching my head about where else I could fit the sender if it doesn't go in the top hose. There would be fitting issues with the bottom outlet due to the design. Ideally, following your advice, I would fit it in from either the left or right side of the bottom tank and (somehow) seal the hole.

I have just been out (- 5 deg C.) to look at the radiator.... Maybe leave it for today!

The worry I have with the top hose fitting is that should the water level fall the sender would be exposed. Not being a sealed system, evaporation is a potential issue requiring a daily inspection and top up.
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Ray White



Joined: 02 Dec 2014
Posts: 4214
Location: Derby

PostPosted: Thu Jan 07, 2021 12:34 pm    Post subject: Reply with quote

Alastair; that Skoda sounds like a poor design. No wonder they were modified!

In a way, the MG TC also had a number of design flaws; one of which was reliance on the cooling system to such an extent that no temperature gauge was deemed necessary. Claude Bailey's brilliant design - that kept the temperature constant - has been a feature of cars into modern times but as the original engines and radiators become clogged up with silt and replacement skirt type thermostats are less well made, the driver needs to know what is going on under the bonnet,
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