Turbo Burns - Putting in new OS RG Engine

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Lex - 18 Dec 2003 02:53 GMT

I have an old Kyosho Turbo Burns that I blew an engine on. The original
engine was an OS .21 EX.

I bought an OS .21 RG as a replacement. I am having 2 problems.

1 - The new carb has a ball link. The old carb has something else. I need
to know where I can get a throttle linkage kit to work with the ball link.
Here are some pix:

Old engine:
http://www.amsnet.com/wizards/rcengine/engine-1-1.jpg

New Engine:
http://www.amsnet.com/wizards/rcengine/engine2.jpg

Instructions:
http://www.amsnet.com/wizards/rcengine/Instructions.jpg

2 - The bigger problem is the the body of the new engine is about 3-4 mm
longer than the old engine. I need to knwo where I can get a engine mount
kit that will work with the new engine.

Best Regards

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Mark Stevens - 19 Dec 2003 00:42 GMT

> I have an old Kyosho Turbo Burns that I blew an engine on. The original
> engine was an OS .21 EX.
[quoted text clipped - 21 lines]
>
> I take it that is the new engine fitted on the old mount, if so there is

no problem...if it is too close then just file the holes out a little to
make a slot for the bolts where they fit into the chassis so that the engine
sits in the right position, 3 to 4 mm ain't going to harm it and once the
bolts are tightened it shouldn't move.
Most r/c car chassis that I know of have slots for the engine mounting bolts
to allow for adjustment for best mesh etc with the main drive gears, I even
did this on a home made custom chassis for my nephews car recently and it
works fine.

As for the Ball link for the the throttle, standard plastic ball link
adaptors are readily availble from any hobby store, you might need to change
the throttle push rod to fit it but they do come ready threaded, just screw
the ball link adaptor onto the end and pop it onto the ball on the
throttle....This is a very cheap and reliable set up and again is another
mod I did recently on my nephews car.

Regards........Mark

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Lex - 19 Dec 2003 11:50 GMT

Thanx for your reply.

I should have mentioned that the new engine did not fit on the old
mount. I had to drill and tap a new hole because the mounting holes
on the RG were much futher apart than on the EX. The engine is
sitting as far back on the mounts as possible.

I was hoping there would be some mounts that I could just buy that
worked because I feared that enlongating the holes in the chasis to
move it back a bit would not allow for a sturdy mount of the engine.
The existing hole in the chasis are threaded - if I enlongate the
holes this won't be the case anymore.

The other option I was considering wa enlongating the holes on the two
flat plates that sit between the mounts and the chasis. If I can
slide this back I would be golden. My biggest concern here was that
the existing hole in that is not far enoungh from the edge where I
could enlongate it enough.

Anyway, I wanted to make sure there were no parts available before I
go hacking. I emailed Kyosho about this but have not gotten a
response in 7 days.

Thanx again.

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Mar1 - 19 Dec 2003 07:15 GMT

For the first problem try using the mp6 or mp7.5 linkage. And for the
second one go to http://www.osengines.com/manuals/21rg-manual.pdf page
7.

> I have an old Kyosho Turbo Burns that I blew an engine on. The original
> engine was an OS .21 EX.
[quoted text clipped - 19 lines]
>
> Best Regards

Reply to this Message

Mark Stevens - 20 Dec 2003 00:07 GMT

Re my last post, just to clarify things a bit, If your engine fits ok on the
old mount then keep that as it is,
It is the engine bolt holes on the chassis itself that I was referring to re
making them into slots, providing you have enough metal around the holes
that is. (ie they are not too close to the edge of the Chassis)

Most I/C Engined cars come with the bolt holes on the chassis made as slots
to allow for adjustment as stated.

Hope this helps and Good Luck.

Merry Xmas too and Hope Santa brings lots of R/C Goodies for you......LOL

Regards...........Mark

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Model Forum / Radio Controlled / Land Models / December 2003

Turbo Burns - Putting in new OS RG Engine