Re: oil percentage ?? type of oils ?
 

what brand fuel?

its just a brand of fuel that the hobby stores in australia sell

no major brand like trinity or so

Make sure it's not air-plane fuel.

hey guys
i did some maths
and the fuel has 200mls to the litre of oil

in a litre that means it has 20% oil!! crap
im gonna make something useful from it and pour it over the weads in the driveway.

Are they still making the TR engine..?

factory setting
 

Hi guys,

Recently, I got a used O.S .12TR 5ports (blue head) engine. It didn't come with any instruction so can anyone pm me the factory setting of this engine? Thank you.

gordon

I know it's been discontinued at Tower & they are a major OS distributer

OS has them on hteir website

Re: factory setting
 

my base setting for it is....

-hsn...1 1/2 turn open from close
lsn- 1 1/2 - 2 turn close from flush.

and mid needle setting - 1 turn from flush...:) hope thats help..:D

Thank you guys! :)

os tr r spec fuel efficiency!
 

hey guys

just wanted to comment on the os tr r specs fuel efficiency

i cant believe after running a 5 min heat that i still have half a tank of fuel in my car

the engine still comes back pretty cool at about 80degrees celsius thats truly amazing. my mates collari 12 is lucky to finish the 5 min heat with a drop of fuel left.

However i did notice some fuel/dirt stuck under the low end needle so ive taken apart the carb and sealed it up with carb sealant to try stop that leak.

Hehehe- I like your username!!

Bearing freeplay
 

I have a question on the front bearing.
The one on my engine has about 0.5mm of axial freeplay on it. I noticed it when I stripped the engine to clean it. Only done 1 gallon through it. Now I'm a bit puzzled. Why does the bearing get damaged so quickly. As far as I know, there should be negligible axial load on the bearings.

Is it still ok to run the engine with that freeplay? Or will it tear up the con rod and crankshaft?

Any advice is much appreciated.

Cheers...

Re: Bearing freeplay
 

i myself just gone through almost a gallon..and already the conrod need to be replace.....as for the bearing i don't see anything...

but if u have doubts u better change the bearing... ;)

Re: Re: Bearing freeplay
 

Con rod koyak after 1 gallon???
How come...?

I think changing conrod is easier than changing bearing. It's a pain to remove and fit. Have to figue out how to heat up the crank case without damaging the other inner bearing...:rolleyes: