Spark Plug enquiry for IH U9 engine

Jeremy42 · Mar 16, 2011

Hi all,
I have recently become involved in the restoration of this war time beauty

The engine that powers the crane is an International U9, it came with only 3 spark plugs balanced on top, too rusty to get back in the holes.
The only markings on the plugs is the manufacturers name "Marchal Corindon".
Can anybody tell me the modern equivalent spark plugs to use with this engine please?
You can keep track of the restoration if you're interested at

http://514th.co.uk/english/site.php?use=Forum&act=viewtopic&t=890

Many thanks in advance.

Kentb ofSWMO · Mar 16, 2011

Do you know if the plugs are 18 MM or 7/8 inch/23 MM?

Kent

Anonymous-0 · Mar 16, 2011

Nice bit of kit lads, here in the UK I run my IHtractor engines on Champion D21 plugs. Good luck with your restoration and were in the UK are you located, I am near Newark Notts. MJ

jim johnson · Mar 16, 2011

7/8ths

glennster · Mar 16, 2011

if they are the 7/8 inch thread, and a 15/16 socket to remove them it should take an autolite 3076 spark plug. champion number i think crosses to w-14

Jeremy42 · Mar 16, 2011

Thanks to all, they are indeed 7/8ths and I have also heard from another source that we can use Champion W-14, as glennster said.

We are located in North Hampshire and hope to be exhibiting her in action at the War and Peace show in Kent next year also at some shows local to us.

Spark Plug enquiry for IH U9 engine

Jeremy42

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Kentb ofSWMO

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Anonymous-0

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jim johnson

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glennster

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Jeremy42

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