Fuel choice - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Thunder Tiger 60/70/90


Thunder Tiger 60/70/90 Raptor 60/70/90 Helicopters


Reply
 
LinkBack Thread Tools Display Modes
Old 10-06-2014, 01:28 PM   #1 (permalink)
Registered Users
 

Join Date: Oct 2010
Location: united kingdom
Default Fuel choice

digging the old raptor 60 out as in previous posts to have a go at trying to learn again..after many years, I have come to buying fuel.
when The helicopter was set up for me it was set up running on a 15% fuel and number 3 plug.
Now I cant find any 15% only either 12% or 20%
since I am starting out, I want something thats going to be a bit calm.
If I went for a !2% would this be ok ?..would I need to retune the engine (hope not)
and what number plug would you recommend.
cheers for any help.
negativepitch is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-15-2014, 05:24 PM   #2 (permalink)
Registered Users
 
Posts: 2,292
 

Join Date: Jan 2010
Location: NorCali (San Jose)
Default

I would suggest any high quality helicopter fuel.
I would go with the 20% - a wornout engine will be easier to start and tune with 20%.
And, yes, you will have to retune it. That is the basic nature of nitro engines, they need retuning for changes in the weather.
I would go to the manufacturers web site and see if you can download their manual. It will give you the "factory starting" points for the needles.
This is important, but because you have some work to do before you try to start it again.

If it has not been touched in more than a year:
Change all the fuel lines. Especially inside the tank. Check the clunk
Change the external fuel filter
Pull the motor out and remove the cylinder head and backplate.
Note: The backplate has a paper gasket and it will break. It is easy to make a replacement out of heavy paper stock. Trace the back of the engine on the paper and cut it out.

Find some Marvel Mystery Oil (MMO).
http://www.marvelmysteryoil.com/

When the cylinder head and backplate are off, turn the engine by hand, douche the inside of the motor and the carb intake with MMO and keep turning until it feels "normal". If needed, dunk the whole engine into a can full of MMO and let it soak, tuning it every once an awhile.

You most likely will need an new main bearing for the motor. Check it closely for rust and worn balls.

I would also spend a few hours carefully looking over the heli.

I would plan on a new receiver battery at the very least.

There are not too many parts available for the R60.
Granted, many of the R90 parts work on the R60, but you will have problems finding tailbooms and torque tubes for the R60.
ticedoff8 is offline        Reply With Quote Quick reply to this message
Old 10-16-2014, 02:13 AM   #3 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Oct 2010
Location: united kingdom
Default

cheers for all the advice
negativepitch is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © VerticalScope Inc. All rights reserved.
 

SEO by vBSEO 3.6.1