Ford 9N Holley vapouriser

Big Mac T20 · Jun 11, 2020

Can someone explain how this vapouriser works or send me
an illustrated diagram.

TheOldHokie · Jun 11, 2020

(quoted from post at 05:02:07 06/11/20)
<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto46853.jpg">
Can someone explain how this vapouriser works or send me
an illustrated diagram.

You have a collector's item there. It's a dual fuel system. In a nutshell the vaporizor uses exhaust manifold heat to preheat kerosene prior to induction into the engine. The engine has to be started on gasoline and run up to temperature before the fuel supply is switched over to kerosene. On shutdown the fuel is again switched back to gasoline to purge the intake of kerosene in preparation for the next cold start. A more complete description and history can be found with a Google search for "Tractor Vaporizing Oil". You can also find some documentation for the 8NAN in the manuals library over on the N Tractor Club site.

TOH

Big Mac T20 · Jun 11, 2020

Thanks for the reply. I’m in the uk and not allot of information
is out there for them and not allot of people know how to work
them so on a learning curve!

TheOldHokie · Jun 11, 2020

(quoted from post at 08:36:28 06/11/20) Thanks for the reply. I m in the uk and not allot of information
is out there for them and not allot of people know how to work
them so on a learning curve!

Yes, historically TVO tractors were popular in the UK as a way to avoid the road tax on petrol. What you have looks to be a much different design than the 8NAN variant.

TOH

Smalltowner · Jun 11, 2020

From an old tech school manual.

Big Mac T20 · Jun 11, 2020

This is great thanks!

Duner Wi · Jun 11, 2020

This might be of interest. Ralph Johnson worked at Holley and is involved with Smokey's "hot vapor engine". Don't know if any connection to your vaporizing engine.

https://www.hotrod.com/articles/hrdp-1009-what-ever-happened-to-smokeys-hot-vapor-engine/

TheOldHokie · Jun 11, 2020

(quoted from post at 12:34:37 06/11/20) This is great thanks!

Very interesting and informative but looking at the diagram I dont think that is he Holley 295 vaporisor you have.

TOH

FLOLDFORD · Jun 11, 2020

Did you notice it also has a magneto.

Tim PloughNman Daley RIP · Jun 13, 2020

Get your ESSENTIAL MANUALS -all FORD TRACTOR MPC's, 39-52 have the Kerosene Vaporizer Assembly diagram with itemized parts list.

FORD 8N TRACTOR ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS:

Tim Daley(MI)

rodney.gibson775 · May 13, 2022

Can somebody point me in the right direction as to where i can buy a Ford 9NAN carburettor bowl please

Rod

Ford 9N Holley vapouriser

Big Mac T20

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