Muir hills putting down the power

allistairc123

New Member
In an issue of the Classic Tractor in the early 2000s I recall reading the Muir Hill hp efficency dropped considerably from crankshaft to wheels compared to say a County. Possibly blaming the transfer box but I forget. Last century, the rule of thumb was 50% for pre-CVT hp loss.
A Muir hill is a lot more effecient to the wheels than a county. The county has no less than 5 90 degree Bevel gears to the ground where as a Muir hill has only 2. 90 degree drives are not very efficient. They were refering to PTO efficiency where the county is a bit more effecient where as the Muir hill PTO has a couple of idler gears to drop down through
 
Somewhere in North Lincolnshire I’m led to believe.
IMG_3341.jpeg
 

glasshouse

Member
Location
lothians
Were Muir Hills especially good?

They were before my time, but someone has sent me some late 70s and early 80s photos of the farm.

One shows a MH 121 is pulling a 9 leg shakearator up a mediumly serious hill, with the frame basically at ground level. This is on heavy ground, which in latter years took 390hp to pull a 3m solo and press.

Just interesting really. So much for progress!
A shakerator is easy to pull, thatsthe ehole idea
 

DrWazzock

Member
Arable Farmer
Location
Lincolnshire
My father had an early Muir Hill in the late 60’s early seventies. Sold it early seventies as things got tight on the arable front. It had a small yellow cab same colour as the rest of it. Incredibly noisy thing to drive. I remember it couldn’t pull a trailed mole plough, moling in our mains water pipe at 24” deep probably because there was little draft transfer. They got the old 45 hp Field Marshall crawler out and it pulled it no bother. That old crawler made the ground shake under your feet when it was pulling hard and blew smoke rings. It was impressive. Moling in the mains water pipe was the last job it did. I was only 3 years old but distinctly remember watching as I’d been placed in the parked up Muir Hill cab to keep me out of the way so had Birds Eye view of a fairly historic day. Mains water for first time and the last days use of the old Track Marshall. I remember it because that old crawler scared me as a kid.
 

agrimax

Member
Location
Co Down
What would a Muir Hill with this style cab be worth, was always kept in a shed but been lying out this past 4 years

Well here's what this one sold for last year and I don't think it has dual power,that makes them a little more desirable.
 

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