Talk Morgan Forums Morgan Sports Cars Morgan Plus Four, Supersport & Plus Six (CX & CXV Generation Vehicles) Morgan Radiator issues — Again!!!!!!!!!!

I think many new cars now have an ECU controlled coolant thermostat. As I understand it's a familiar wax stat with a tiny heating element in the wax capsule triggered by the ECU to pre-empt coolant warming. I guess this has the advantage of providing a failsafe back to old style thermo mechanical operation to still control coolant temp.

Thank you again John!

It was my understanding that the second "cooling systemÈ is needed to cool the air entering the turbo and has nothing to do with engine cooling per se.

Do either or both those overflow tanks have blank or pressure caps? Do the other turbo cars leak as well? Simple cooling systems have been doing their job
for a very long time. This one is certainly not money based . A glance of the money generously lent to the Company during the rad/brake period certainly
establishesTHAT. So I wish this rad things they had to failed with another company or had been quickly corrected years ago..


Thermal shock is MMCspeak. Actually, the only occasion I have seen it appropriately applied was with the last LR V8s. John (Eales) has a very cogent
theory about that.

Generally, there are three types of rads for this simple soul..

1.Badly designed..for example the canted rads sold by the still sold by the aftermarket.

2. Badly made rads that leak.

3. Good rads that work and cause no problem.

Take your pick. What concerns me is that it has taken so much time to resolve the issue. This is painful for the market and the company. And while I GREATLY
ADMIRE the new MMC stepping up to the plate and backing their product as few do these days, I believe that the length of time and faulty designs ?),
point to someone at the MMC rather than a supplier. Suppliers are only responsible until the Company becomes aware of an issue, after that it is the Company..


No clue myself either. I asked about Radshape involvement as it became insolvent last year. I shall make inquiries.

L.

P.S. I am charmed at your brake/clutch reservoir, John! It is same one they fit to the car they specially made for me 22 years ago! It is off the Aero of the day.

I think now is peak service and mot time for them. Plus sales of new reg cars

I think were all of a certain age and our expectations get a kicking from time to time. We bought our tin top from a local garage serviced every year to keep the warranty going, we got a text to say it was due its service I immediately give them a ring to book it in and was told there was nearly a 5 week wait. I know Morgan try and pass work to the various dealers but they dont help themselves sometimes. Em

For 3 years? One of the more pleasant surprises of my Morgan life is I find myself liking the new owners and their new top
Management. They have the perfect Morgan demographic. Mid-50s, sophisticated, honourable, affable, attractive....ven dashing!
fingers crossed) And the ultimate owners desert-rally 1980 Plus 8s! A great set of aesthetics of the Midsummer is an example0
Nothing not to like in that list. I want them to succeed.

The CX was designed by the previous regime during the "hard times", though the Plus Four specification is one of the very best ones. I
have seen ever from Pickersleigh Road. It is not a car for me, one who adores interacting mechanically and (forgive me) has no budget
..at this level of hobbying "Three years" has to indicate a deeper personel issue..which I hope they resolve. Even if the latest
CX rad works, it has taken too long.

My Plus 8s have used many rads...stock and aftermarket. I enjoy trying new stuff..like my deeply missed mate Button did. My Morgan hp
has always been very high, as high as the highest today. I have tried many rads in 27+ years (5 aftermarket) on three trads.. None of
them has ever leaked and I have never boiled over in 400,000+ kms except when a deeply tuned 3.5 succumbed to a common issue
has https://www.gomog.com/headgaskets.html in the Dordogne. (Well worth it, we were having a blast! The car had a more appropriate
4.6 and staged heads within 48 hours.

This says nothing special about me. Merely common sense and priorities. I will never lose any more mogging than I have to. And if I want
to drive like a hooligan, I should prepare my Morgan for that. Who on earth takes up to 5 rads and three years to cure a simple problem? The
UK can make super rads. [i]Aside from very brief flirtations with two US rad makers (Griffin and RDR) I stick with the British. Peter Mulberry
is/was brilliant with deep production skills.

L.

Alternatives are Ledgerwood, nr Scunthorpe or Central Morgan, Nottingham if you need it quicker

My advice avoid Central Morgan

As there is a bit of speculation ref how the cooling system operates, the following are the basic flow diagrams of the BMW B58 engine ( Plus Six) . These diagrams are from BMW training information available online so only reflect the installation in a BMW vehicle. However, they do show the split flows during warm up and the electronic control valve, Morgan uses broadly the same system but with their radiators, dual expansion tanks ( I believe the BMW expansion tank is a semi twin tank in one housing in some models ) and installation etc.. I believe the Plus Four engine flows are broadly similar. Its a fairly complex system engineered to meet emissions and controled by the ECU. The Morgan ECU reflash must have changed the engine coolant flow control during warm up and maybe at other times of light load, but this is only a surmise.

Thought I had dodged the dodgy leaky radiator blight but had to have mine replaced during a service.

I hope it was a warranty job.