Ital to Minor top hose

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Martlin
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Ital to Minor top hose

Postby Martlin » Fri Aug 16, 2019 1:27 pm

How on earth can I overcome the mid-match between the thermostat housing and the radiator,any suggestions more than welcome.
Thanks for looking.
Martin.
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darrenj
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Re: Ital to Minor top hose

Postby darrenj » Fri Aug 16, 2019 1:48 pm

How about a "S" shaped hose, looks like it should work simply enough,

philthehill
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Re: Ital to Minor top hose

Postby philthehill » Fri Aug 16, 2019 1:50 pm

Use a Marina thermostat housing with the three securing stud holes drilled out to 3/8".

There is a 1275cc engine to Minor radiator thermostat housing available that involves no drilling of the thermostat housing bolts or cutting of the radiator top hose pipe. If I can find the link I will post on here.
Last edited by philthehill on Fri Aug 16, 2019 2:13 pm, edited 2 times in total.


millerman
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Re: Ital to Minor top hose

Postby millerman » Fri Aug 16, 2019 2:01 pm

Cut off the pipe on the radiator leaving approx 1" and purchase a rad hose with a 90deg bend from your local motor factor, make sure you get the correct internal diameter, or cut a Minor bottom hose to fit

philthehill
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Re: Ital to Minor top hose

Postby philthehill » Fri Aug 16, 2019 2:19 pm

David Manners Group Thermostat housing Pt No: 12M220 is the part you require.

https://www.morrisminorcentrebham.co.uk ... 5cc/12m220


midget
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Re: Ital to Minor top hose

Postby midget » Sat Aug 17, 2019 2:37 pm

MGB one Martin. Cast iron, but correct shape.
John

jaekl
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Re: Ital to Minor top hose

Postby jaekl » Sun Aug 18, 2019 1:28 pm

Isn't the MGB sized for a larger hose? What's the best way to deal with that?

philthehill
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Re: Ital to Minor top hose

Postby philthehill » Sun Aug 18, 2019 6:12 pm

https://www.ebay.co.uk/itm/MG-NEW-MGB-T ... XQQJBQ6dox

There are two thermostat housing with different top hose connections:

12H2556...…………..Small outlet.

12H797...…………….Large outlet.

There are variations in the outer shape of the MG thermostat housing.

I have a MG cast steel thermostat housing 12H2474 (with air pump mounting bracket) which has a 28.5 outside diameter outlet pipe.

It looks to fit correctly when offered up but would require the air pump mounting bracket to be removed - and I would suggest that the 5/16" holes are bored to 3/8" to allow a better alignment.

The Marina/Ital thermostat housing has a 25.4mm outlet pipe.


paul 300358
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Re: Ital to Minor top hose

Postby paul 300358 » Sun Aug 18, 2019 6:48 pm

philthehill wrote:
Sun Aug 18, 2019 6:12 pm
and I would suggest that the 5/16" holes are bored to 3/8" to allow a better alignment.
What a brilliant idea. This is what I will be doing the next time the thermostat housing is removed.

ColinChandler
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Re: Ital to Minor top hose

Postby ColinChandler » Wed Aug 21, 2019 8:33 pm

Evening all,
I went the other way and modified the radiator. The curved top tube can be unsoldered with a blowlamp and then shortened to just leave a straight spigot with the rolled end on it to stop the hose coming off. It can then be soldered back in place. The radiator can then be connected to the thermostat housing using a standard bottom hose trimmed to suit. It works for me although it does make the radiator non-standard.
Hope this helps. Regards, Colin.
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ColinChandler
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Re: Ital to Minor top hose

Postby ColinChandler » Thu Aug 22, 2019 8:39 am

P. S. The thermostat housing is standard Minor rather than an Ital/Marina one.

Martlin
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Re: Ital to Minor top hose

Postby Martlin » Thu Aug 22, 2019 4:52 pm

O.K, Many thanks again for all the suggestions.
I looked into all possibilities,and decided to go the MGB route.
I hadn’t realised there where two different types till Phill highlited the part numbers.
So I bought both parts!
The one that fits in the photo is part number 12H797,the other part 12H2556 won’t look at it.
I had to shorten the top hose slightly,but all seems good.
Martin.
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ColinChandler
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Re: Ital to Minor top hose

Postby ColinChandler » Thu Aug 22, 2019 7:55 pm

That looks tidy. I also keeps the bellows in the hose too to allow a bit of movement between the engine and the radiator.
Good one.
Cheers, Colin.


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