fiatuno09

my orange o-ring in the center diff wont stay in either, its constantly leaking.

MiamizFinest what pinion are you running? do you have any close up pics of the teeth on it?


cheers

fiatuno09

hiya,

I have a Hyper 8 thats been converted to brushless, except the lipo's are so tall that it pushes the edge of the bodyshell way up and looks pretty stupid.

I'm just wondering what the tallest shell available for it is?

Is it compatable with Hyper 7 and 8.5 shells?

Is it just a standard 1/8 buggy sized shell?


Cheers for any help given!

MiamizFinest

The pinion is a 25T i posted it earlier a few posts up, good luck with the body issue it was a problem with my losi thank god losi makes a BRUSHLESS body for my car which is alot taller to clear the body. If i was you id look into the GTP-E body if the GTP and hyper 7 can share the same bodies you should be OK

dadon

tell me people,
is it possible to cook the engine???
I was running the 21 8p hyper 8.5 and then sudenly stopped. The flywheel will not turn. after taking off the spug I had a great deel of white smoke.
What can be the couse of this?? Did I fry my engine?????

46u

My Feedback: (3)

Yes it is possible to fry the engine. How many gallons have you run through it? Pull the engine and see if you can turn it if not start taking it apart and see. Good luck and let us know what you find.

dadon

It could be possible even more as it was still on the starter box??? possibly not enough cooling through it!!!!!! silly me!!!!!

dadon

I got time to disassemble my engine.
Everything was VERY hard to remove especially the piston and the sleve. Below you will see what is the outcome.
My guestion is... do I rebuild or buy a new engine or go brushless???
If new one... which engine do you recommend, bearing in mind that I do not race??

46u

My Feedback: (3)

Sorry to see that but as far as what to do that is all up to you.

dadon

Hi there,
Where can I get the piston and sleve parts???
I checked endless sites and nothing except one that was quoting me $100 for both.
If I can't get those parts or are to expensive which engine would you recommend???
Dont have to be racing one as I do not race. More torque would be prefferable option.

46u

My Feedback: (3)

There is a lot of good engines out there what is available in you area?

dadon

I could buy Hyper engines 21-28, or OS... March....savage 4.6cc......savage 4.1cc choice is endless but price isn't.[&o]
Would parts fit ane annother? EG. 3port piston and sleve in to 8 port with good effect??
Could you point me to website with original parts for Hyper 21 8port engine as I can't fing any of those here. That would be my preferred option to rebuild my engine.
Cheers,

46u

My Feedback: (3)

I have yet seen where sleeves and pistons are interchangeable. The only place I know you might get parts for that engine is in the US.

fun hawg

Hi nitrohouse.com has all the parts for ofna and hypers
greg

dadon

I have busted the prices...
I managed to buy them from ebay for $52 new.
I will be up and running this weekend. I will post some pics of my running machine.
Thanks you all for your help.

dadon

I put my engine together. Looks sweet. NOW....
which type of breakin in the engine would you recommend?? I haven't got a temp gun.


ps. Some photos of the postons and sleaves.
ps. hardly enybody here - no conversations - bring them on show off!!

46u

My Feedback: (3)

If you do not have a temperature gun you will not be able to do like I do. I recommend you get one.

dadon

is there any other way of doing it?
Im not really preapared to buy a temp gun for $35

46u

My Feedback: (3)

I know of no way to do a heat cycle break in with out a temperature gun. Personally I have tired many methods and heat cycle is the one I like best. I have big block engines that I have at least 9 gallons on them that are still going that I heat cycled when I broke them in. Yes there are other was to break in an engine but not one I will use on mine. A temperature gun can all so save you a motor so is it really worth $35 that is up to you. One more question what fuel are you running and what is the oil content?

dadon

I run them on model technics %25.

I know it will pay of in long run. I have to think about it.

If I will not find any other satisfying way of breakin it, then I will buy it.

Could you tell me please what is your way of doing it in case of going ahead with temp gun??

cheers

46u

My Feedback: (3)

What is the oil content as anything over 12% is not good and can cause problems.

dadon

GUYS FROM MODELS STORE ADVISED ME TO BREAK IT ON 16% FUEL AS IT IS REACHER IN OIL.
I HAVE OTHER PROBLEM. THE LINING AND THE PISTON ARE REALLY TIGHT SO I CAN'T USE MY STARTER BOX COUSE WILL NOT TURN THE ENGINE.
WHAT SHOULD I DO??
WILL HEATING UP HEAT SINK HELP IN ANY WAY??
HELP!!

46u

My Feedback: (3)

Please take the cap lock off! I break all mine in on 30% nitro with 11% oil. I will not run more then 12% oil as to much oil is as bad or worse as too little!!!! Like I said I have 2 or 3 big block engines that have never been into with 8 plus gallons on them. All so mark the flywheel so you know where BDC is and put it on that mark when cooling. I heat all my new engines with a heat gun when new to make them easier to turn over and make sure the piston is at BDC before putting on the starter box.

fun hawg

Hi I have a 8.5 pro with a bad under steer when on the gas. It has 3 spider difs. I tried several differnt weights of diff oil. and ride heights. does any one have some things to try.
thanks greg

dadon

HI GREG,

What about your springs?? Did you try to change those ones?? - this might help

dadon

sorry for double post!!!!!

I have a problem with my Hyper 21 8p engine - still

I had a chance to break in the engine - 5 tanks on ideling on the ground

Now I want to go for couple of tanks with 1/3 throttle but my car wouldn't move even with half throttle. Breaks are disengaged, engine is reaving but it will not move more than a couple of inches.

Waht is the problem?? I suspect clutch shoes... but all was fine before the crash few months ago. Engine is on factory settings.

Any suggestions welcome!!!!

Cheers.