Old 222 in the garden !!!!

[andyquirot]

Hi all
Making some progress 2 wire brushes later. Don't know what order the photos will display?.
Regards Andy Q

[Robert Reid]

The textures on that finished 'restoration' are going to be amazing. In the spirit of "war finish" and forgings...

This is going to be an utterly fascinating model when done!

Well done with the restoration so far!

Cheers,

RPR

[mark lawson]

could I ask, why was this model in a garden, what is the story indeed the reason why it was in a garden. I'm curious.

[andyquirot]

Hi there
The story as I know it. Mr x brought the kit and then built it (not much etch primer) and then found it did not steer very well and when driving there was a problem with the difs so it did not drive very well. He call it ( X^$%&^"#$^"~^$%$£ ) rubbish and stuck it in the garden. I have been trying to get it off him for a number of years till finely I got it and here we are now.
Regards Andy Q

[mark lawson]

so it would seem MrX has no patience, the diffs can be made to work my own can have a wheel off the ground in opposing corners and still drive this it couldn't original, the steering may just need tweaking.

[andyquirot]

Hi mark
Did you replace the dif oil with something thicker. and i will post some build photos. If i do any thing wrong please point it out.

[mark lawson]

I spent many weeks and diff rebuilds to sort this problem out, the 222 has x3 diffs from a 1/8 high speed RC car this is not required for the 222, to quicken this story up I simply cleaned out all x3 diffs the center and rear diffs were locked solid simply by filling with resin this completely stops any slip and you will always have drive to the rear the front diff I filled with 100000 silicone diff oil, will clarify that latter.

[andyquirot]

Couldn't resit it to test fit some of the parts back together.

[andyquirot]

Center diff ready for diff oil .
Question!!!
100000 or 300000 i have read that the center diff is best locked witch points me to the thicker oil 300000. What do you all think.
Regards Andy Q

[Adrian Harris]

The 222 becomes immobilised if used on any surface which causes a wheel to lift off the floor, so the stiffer the oil the better. If the 300K isn't stiff enough, there is a 1M weight silicone oil available.

What would be interesting to know is whether locking the diffs in this way causes any increased wear in the diffs or on the tyres, as there is no way to compensate for the difference in wheel speed when cornering.

222's are very rare on the show scene, so I wonder whether any have had enough running for wear to be discernible ?

Adrian.

[mark lawson]

forgot to respond, its the 300000 grade, first clean out the diff completely then using a wooden stick start to scrape some of the oil into the diff this stuff is very thick and you need to remove all the air gaps a small amount of air will defeat the project I think it took several day for all the air bubble to come out of my diff, the rear of some gears there are gaps these need to be filled before reassembly as you have gathered this will not be a quick job, only the front needs to have diff oil lock the center and rear completely.

[Simon Peck]

Looks to be cleaning up nicely! I think the problems with the 222’s running are two fold. Secondly the differentials allow any wheel that looses contact with the ground to spin freely starving the remaining three wheels of drive. But firstly, this occurs easily as the suspension itself is both too hard and not of sufficient travel. If you can find softer springs and adjust the chassis slightly for longer travel it should work better. That said, it’s a theory I’ve not yet put to practice!

[Christoffer Ahlfors]

I used to have an old Kyosho RC car with the exact same problem. There, there was plenty of travel and the wheels adapted pretty well to uneven ground, but there are always situations when one wheel lifts and it got stuck. My thoughts went to construct some sort of brakes in the differentials, but I never got around to. The oil method seems like a simple solution!
But, of course, RC controlled differential locks is the engineer's solution...

[Robert E Morey]

Boy what a difference from the rusted up mess! Looks wonderful! Great work to resurrect this model!
Bob

[andyquirot]

Hi all
Its on its wheels.
I have made and fitted drive shafts to test it after changing the diff oil and it should be OK. We will see??
Also i have made my first diff cover from tin plate.
I am going to have a go making new bodywork from sheet tin as you can see there are some holes in the oil bodywork.
I am thinking about using a large 1.4 scale servo for the steering as i have some. What do you think.

Slow going but interesting.

I know the build wont be up to the Forms standard of builds. But i way i look at it it will be battle damaged.

Regards
Andy Q