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  #1  
Old 21-02-20, 02:48
Michael R. Michael R. is offline
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Default MK-II* Carrier trivia question

Many, if not all factory original engine cover ventilation screens from the UC NO2 MKII* have a small framed rectangular shape opening.

A similar opening is not observed in the MK-I* or UC-2 series carriers.

Trivia question:
What is the opening for?
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35D3705E-1372-4956-A50C-9BBAC82F9F7D.jpg   54AE8472-9E42-4F98-A07F-D51A1BD0F88B.jpg   338AEBD3-FB5C-45A1-A91A-E8F24699DC02.jpg  
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  #2  
Old 21-02-20, 03:06
B. Harris B. Harris is offline
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Adaptor, Grater, Cheese, Type 1, Mk.IV ?
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  #3  
Old 21-02-20, 03:30
Michael R. Michael R. is offline
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Default .... ď and their off . . .Ē

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Adaptor, Grater, Cheese, Type 1, Mk.IV ?
I do enjoy MLU Forum over the FB version.... it has a more intimate feeling developed over years of friendship and supporting each other in our illnesses.
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  #4  
Old 21-02-20, 07:35
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I have wondered! Although it's never kept me awake....Till now. I await the answer with trepidation. Ron
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  #5  
Old 21-02-20, 10:48
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I await the answer with Parmesan.
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  #6  
Old 21-02-20, 11:18
Tom Millward Tom Millward is offline
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Wrap your pasties in foil and leave them on the grate until lunch time?

But seriously, is it not for exhaust air from the cooling system; in from the front and out through the top. Without this the fan would have nowhere to vent the hot air from the radiator and the cooling system would not function efficiently. All tracked AFVs that I can think of have a similar system.

When I worked with Challenger 2 Recovery Vehicles the hot air outlets were a very popular place to dry off after recovering things from water!
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  #7  
Old 21-02-20, 12:02
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Question

Tom you missed the point! it's not the actual grill that is in question. It's the formed rectangular hole within the grill. Ron
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  #8  
Old 21-02-20, 14:27
Perry Kitson Perry Kitson is offline
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If you look down to the hull floor through the opening I believe you will see a hull drain fitting. If I remember correctly, on my (now someone else's) carrier, this is where the shaft came through to open and close the drain.

Perry
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  #9  
Old 21-02-20, 14:36
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Quote:
Originally Posted by Perry Kitson View Post
If you look down to the hull floor through the opening I believe you will see a hull drain fitting. If I remember correctly, on my (now someone else's) carrier, this is where the shaft came through to open and close the drain.

Perry
Not so Perry! The 'T' handle drain rod has its own location. Ron
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  #10  
Old 21-02-20, 14:40
Perry Kitson Perry Kitson is offline
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It appears my memory is not that good after all!

I now see the drain shaft in the first post.
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  #11  
Old 21-02-20, 16:05
Michael R. Michael R. is offline
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Default Grate thoughts ...

. . a few are kinda cheesy though.

Two framed openings within the engine ventilation screen of the MK-II. The round hole with brass grommet frame allows the rear hull drain seal assembly opening/closing rod to pass through. The MK-II* rear hull drain is unlike that found on the MK-I* series of three models of carriers.

Then there is that pesky rectangular shaped opening.
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  #12  
Old 21-02-20, 18:10
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Was it to let one fit a wrench in on the nut for the bolt in line with the cutout?
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  #13  
Old 21-02-20, 19:54
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I can't see anything in easy reach of a spanner! The only things that line up under that aperture are, the clutch rod pivot and the bush that the gear change rod runs through. If dripping oil onto those components were the case, then it could easily be done through the diamond mesh without the need of the rectangular hole.......I dunno!?? Ron
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  #14  
Old 21-02-20, 19:55
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Is it for access to the screw type fuel change over valve?
In A MkIIIw the screen has a hinged section which is held shut with a spring and a hooked catch like is found on early race car bonnets (hoods) and 3 inch mortars.
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  #15  
Old 21-02-20, 19:58
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I'll chip in again Lynn. The MK2 has a change over lever between the driver and gunner seats. Ron
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  #16  
Old 21-02-20, 21:39
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I know I know I know......but will see if anyone else gets it.
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  #17  
Old 22-02-20, 04:12
Michael R. Michael R. is offline
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Ron Pier... it kept me awake, on and off over some seven years.
Was it a left-over from an early stowage design? Did a portion of the BREN tripod some how touch that area? If the PIAT or Boys was mounted on the engine deck, did a portion of either somehow need clearance?

What about the change from the smaller engine ventilation screen of the MK-I* and UC-2 made of copper wire? The screens are not interchangeable between the MK-I* and the MK-II*, could that be a clue?
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  #18  
Old 23-02-20, 07:28
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Is it anything to do with the oil filter? Mine hasn't got one, so I can't check it.

Otherwise I haven't got a clue! Ron
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  #19  
Old 24-02-20, 00:47
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Oil filter sits on the drivers side roughly mid engine bay.
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  #20  
Old 24-02-20, 03:54
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I know there was a canvas winter cover that went over that grill for cold weather operations . Does it have something to do with that ?
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  #21  
Old 24-02-20, 07:14
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Quote:
Originally Posted by RichardT10829 View Post
Oil filter sits on the drivers side roughly mid engine bay.
Quite right! And you can see it through the hole in question in the second picture of the original post. Ron
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  #22  
Old 24-02-20, 10:04
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Top of the fitting has the hose coming out of the side, from memory nothing comes out of the top... need to dig my filter housing out of storage as you have me thinking now !!
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  #23  
Old 24-02-20, 11:27
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Quote:
Originally Posted by Jordan Baker View Post
I know I know I know......but will see if anyone else gets it.
I Know, I Know, I know too! Ron
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  #24  
Old 27-02-20, 02:15
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Donald Rumsfeld once said: "as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns; the ones we don’t know we don’t know.”

I think that applies to this thread. Some people Know. Some people Don't Know. And lots of people Know they Don't Know, and others Don't Know they Don't Know.

I sorta think I Know where I fit in? Or do I? I Dunno!
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  #25  
Old 27-02-20, 02:38
Michael R. Michael R. is offline
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Quote:
Originally Posted by Tony Smith View Post
Donald Rumsfeld once said: "as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns; the ones we donít know we donít know.Ē

I think that applies to this thread. Some people Know. Some people Don't Know. And lots of people Know they Don't Know, and others Don't Know they Don't Know.

I sorta think I Know where I fit in? Or do I? I Dunno!
It leaves me pondering the unknown. How long should I let the thread run before revealing what I think I know? Does anyone know?
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  #26  
Old 27-02-20, 04:07
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Quote:
Originally Posted by Michael R. View Post
It leaves me pondering the unknown. How long should I let the thread run before revealing what I think I know? Does anyone know?

Donít hold us all Ronson anymore
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  #27  
Old 27-02-20, 04:59
Michael R. Michael R. is offline
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Quote:
Originally Posted by Jordan Baker View Post
Don’t hold us all Ronson anymore
The word is ‘ransom’.

It may be a relief for some when the details are revealed.

Last edited by Michael R.; 27-02-20 at 05:40.
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  #28  
Old 27-02-20, 06:30
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So.... What about the rest of us?
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  #29  
Old 27-02-20, 11:45
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Oh! Oh! Oh!

Was "Ronson" a clue, or a typo?
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  #30  
Old 27-02-20, 20:54
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Or was he just maintaining the lighter mood?
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