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Hornby Rebuilt MN chassis

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Peter Abraham - 27 Jun 2007 09:42 GMT
Can anyone give me the length of the MN chassis and also if there is
a difference, the rebuilt WC/BB.  (I refer to the chassis block).

Thanks in anticipation.

Peter A
Montarlot
John Turner - 27 Jun 2007 16:38 GMT
>  Can anyone give me the length of the MN chassis and also if there is
> a difference, the rebuilt WC/BB.  (I refer to the chassis block).

I thought the two were completely different, even down to driving wheel
size.

Which dimensions are you looking for on the MN chassis Peter.  The length
from immediately behind the buffer beam to the back of the loco is
approximately 172mm.

John.
Peter Abraham - 27 Jun 2007 16:49 GMT
>>  Can anyone give me the length of the MN chassis and also if there is
>> a difference, the rebuilt WC/BB.  (I refer to the chassis block).
[quoted text clipped - 7 lines]
>
>John.

Thanks for coming back John.    I have  a chassis unit which claimed
to be a MN , DCC ready. It was missing its valve gear so I bought in
the gear and fitted it. However, the cyl position proved to be too far
forward and I began to suspect it to be a r/B  WC/BB.  The spares
lists do not give dimensions  but I see that the Hornby Pub. gives
differing lengths.

So, any length which can be compared will give me the correct model!

Voilà!

Regards

Peter A
Peter Abraham - 27 Jun 2007 16:56 GMT
>>  Can anyone give me the length of the MN chassis and also if there is
>> a difference, the rebuilt WC/BB.  (I refer to the chassis block).
[quoted text clipped - 7 lines]
>
>John.

I have just measured the solid chassis section to be 145mm.   (rear
pegs to just before the front fixing screw.)
John Turner - 28 Jun 2007 12:47 GMT
> I have just measured the solid chassis section to be 145mm.   (rear
> pegs to just before the front fixing screw.)

The MN chassis (measured without removing the loco body and from the front
of the cast chassis to rear, but excluding mounting lugs)appears to be
approx 150mm.

John.
Peter Abraham - 28 Jun 2007 18:57 GMT
>> I have just measured the solid chassis section to be 145mm.   (rear
>> pegs to just before the front fixing screw.)
[quoted text clipped - 4 lines]
>
>John.

Hum!  It looks as if "mine" is a West Country. That would confirm my
suspicions regarding the valve gear.

Thanks John.
 
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