Armstrong Siddeley Cheetah Engine

Need help with cheetah X

we at sola aviation museum ( Stavanger Norway ) need som help to compleat this old engine. It is a mk X ( OHX, R02192, A233880 on crank case ). It is for static display only, so we dont need airworty parts. This forum seams to be a great place to start. The museum are most famus for the He115 recovery last summer.

Ernst Knutson FMS

I am afraid I have to sell mine as well, my attention is into my Allison V1710. The Cheethah has been crated since WWII and is in good condition. It is a Cheetah IX. Please send me a PM is you know of somebody that is interested. The engine is located in Pretoria, South Africa.

sorry to hear about it.tell the new buyer to join up here and continue the journey.

Im sorry to say that due to my hand injury my cheetah has been offered to a fellow cheetah rebuilder. Thankyou all for your fantastic support With this project of mine Its a very sad decision but I had to make it due to various circumstances with my hand.If any spares do come up in the future I will keep all the other cheetah rebuilders informed.

thanks for the update wildside. im at a full standstill on mine, the usuall parts search continues. keep us posted on those cylinders/parts cache. im definitly interested. if i could score a full set or just 1 would be great. depends on $$$. keep up the wrench turning . mine is put away for now while i play on some v-12 rangers.

ok

Anyone need a couple of valve covers? Drop me a PM

Hi Rkamm,

Just stuck with the Cheetah’s for the Oxford.

Cool, Ill keep looking. I found mine on barnstormers. it was is out west.Chicago area. he has nothing else for it. :(. I need parts for a few projects. (kinner and ranger) . its all part of the fun in doing these restorations. I try to keep all of my engines in ready to run condition. nothing is just for looks. who doesnt like a smokey radial starting.you seem to have a huge collection. what do you have?

Hi Rkamm,

There are carbs and manafolds out there, the best source is evil bay especially the Aussie website. How did you obtain your Cheetah in the first place, perhaps there is more parts from that source? Your doing a great job of restoring it.

Looks like a really nice engine. ive never seen the spark plug wires routed that way. I think the russian v-12s may be a great deal for somebody. If i was local i would definitly check them out. my next projet im starting on are a pair of ranger v770s i just picked up.

Seen this?

http://rainbowaviation.co.uk/parts.html

Managed to get all the spares back to my place this weekend Wildside(would love to show you),hopefully getting the engine back when I get a tractor to lift it in the garden with its bucket.Managed to get a gyro for the autopilot for my Stirling too…sadly not been able to upload any photos to my thread (or any other)for days…………:mad:

Hello Miclittle, nice collection of stuff. want to sell me some stuff? I need a carb and manifold, 1 cylinder assemble and 2 rocker covers. let me know if you want to sell and how much. there is nothing here in the USA. my parts lead i had didnt happen for the big stuff. cheers Robert.I have nothing cheetah to trade sorry.

The front nut would be wonderful:p

Hi tony the side plate is around 6mm thick I will get exact dimensions later for you. Mr mclittle what would you be doing with the badly seized mk9? parts????????? as you have some parts there that I havent managed to find for mine yet no matter how hard I look and pester people.

I’m going to use it as a trade item later on, However I need all the Valve Gear/Push Rods and any part that is compatible with the MK10, and swap the non airworthy parts on to it. Came very bare with no parts or ancillaries
What did you still need in addition to the starter/front nut?

I’ve only just read through this thread for some reason, the detail makes very interesting reading and great to see this enthusiasm for restoring old engines in sheds.
Hope to tackle something like this one day.

Hi tony the side plate is around 6mm thick I will get exact dimensions later for you. Mr mclittle what would you be doing with the badly seized mk9? parts????????? as you have some parts there that I havent managed to find for mine yet no matter how hard I look and pester people.

Why do people with surplus plane and engine parts always want so much money for them? Ive just had a chap on that auction site with a starter tell me to get lost and not to politely because I offered him a sum that I thought was fair for it and its been relisted about 5 times. I know it is specialist but how many people want an ex raf starter motor I just cannot understand it. Any way thats my moan over. The cheetah is singing along all the induction pipes and push rod tubes are blasted primed and painted The next plan of attack is the cylinders they need honing then a light sand blast and either powder coated or a coat of heat proof paint. Then I will be back on with the crankcase. Does any one have a crank nut for a mark 9 surplus to requirements and the oil sheild that goes behind it??????

The starters were actually quite rare on the Cheetah engines as they were all hand started as far as I know, they only appeared in greater numbers on the Airspeed Consuls being civil aircraft.
I must have about 15 of the non motorized ones and only 3 motorized units,
but it looks like they can be converted if you can find the electric motor.
I managed to pick up two more engines, one badly seized MK9 which looks like those Peak District examples and a partially
seized MK10 which was very complete , so that seems the way to go to get parts at my end of the world.
My carb adaptors have corrosion on the sides on some of them but the manifold always seems to escape unscathed, a couple of thick alloy plates will do the trick for your one Wildside.

Wildside is it just an ally plate? How thick is it, might be able to get you a lump.