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tow bar
by G Walker - 24/08/26 06:52 PM
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Forums39
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Jun 14th, 2026
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Joined: Feb 2016
Posts: 8,657 Likes: 407
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,657 Likes: 407 |
It seems likely all the OE radiators leak eventually Ben. The plastic side tank to aluminium core interface being the usual place. Remember also the same radiator was used on the Roadster as lower powered Classics so greater heat stress. ![[Linked Image]](https://i.imgur.com/CQwe1X2.jpg) Mulfab are the only remaining company offering all aluminium replacements.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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1 member likes this:
Whizjet |
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Black Rat Charter Member
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Black Rat Charter Member
Joined: May 2014
Posts: 5,437 Likes: 131 |
As a matter of interest? If you up the tyre size say from 165 to 185, do you increase or decrease the tyre pressure?silly question but just interested. Methinks decrease but hey I havn’t a clue. Sorry for thread drift but may help the OP. I have 185/70 tyres run at 22 psi for the last 11 years.
Keith
2013 narrow bodied + 4 Ruby.
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Whizjet |
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Joined: Jun 2015
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Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2015
Posts: 2,085 Likes: 69 |
It seems likely all the OE radiators leak eventually Ben. The plastic side tank to aluminium core interface being the usual place. Remember also the same radiator was used on the Roadster as lower powered Classics so greater heat stress. Mulfab are the only remaining company offering all aluminium replacements. For me, it was when I went to remove that plastic drain plug to do a routine coolant change…the cross head and part of the plug broke away leaving the threaded portion stuck inside. Luckily for me, SIFAB was in business then. Incidentally, I believe Williams may now be trialing a new source for Aluminium rads.
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,663 Likes: 489 |
Thanks all, tyre pressures now sorted.
Interesting to note the posts regarding after market rad upgrades - was there a specific reason for this? I'd read somewhere about on particular Morgan having a leaking rad issue solved by this upgrade but the dealer told me not to worry.
I also asked about sump guards - any thoughts from anyone?
Oh, and whilst you're being kind enough to reply, how reliable is the fuel gauge and how reliable is the range function - on my K1600 GT, the fuel was extremely accurate but I'm sensing this may not be the case with the Morgan, and while the info functions are useful, they seem to have such low brilliance as to make them nearly impossible to read unless it's dark! The fuel gauge on all Mogs is notoriously inaccurate, however the selectable little digital bit shows 'range' (distance to empty) and is surprisingly accurate on the 3.7's (note the MPG is in US galls) plus you'll get a ping and dash warning below about 40 miles left If you look under the dash on the undertray far right, there's a black potentiometer that controls gauge brightness & a little black knob to adjust the time clock
Jon M
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Joined: May 2025
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Just Getting Started
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OP
Just Getting Started
Joined: May 2025
Posts: 67 Likes: 15 |
Thanks Jon M, much appreciated. The brilliance control seems to be, erm, inoperative, I hadn't seen the clock adjust, I'll take a look when I get back (currently in Riyadh). If the mpg is in US gals, does that mean the range readout is in US miles?
Ben
2014 Roadster 3.7
2016 Audi S-Line Black Edition TT
2018 Mini Cooper (herself's)
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Joined: Feb 2016
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Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,657 Likes: 407 |
Note the dash illumination control that Jon describes only functions when sidelights or headlamps are selected on light stalk. Because sidelights are permanently on with ignition, selecting them on stalk simply dims dash illumination from full daytime brightness to whatever the under dash rheostat is set to - or it should  BTW the range readout is in US miles but also UK miles 
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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