Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


1995 Puma Typhoon 2.5cc Babe_b10
Log in

I forgot my password

1995 Puma Typhoon 2.5cc Pixel
Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» More fixer uppers only in the "Train" department.
by rsv1cox Today at 10:16 am

» Oddball QRC
by gkamysz Today at 9:29 am

» Cox International Fridge Magnets
by fredvon4 Today at 8:59 am

» If you think it's cold in your city....
by getback Today at 7:57 am

» Fox 049, 07, 09 Parts Identification
by Oldenginerod Today at 3:40 am

» Bladder (pressure) protective sheath
by NEW222 Yesterday at 8:40 pm

» FOX FAI .049 Engines
by EXModelEngines Yesterday at 7:11 pm

» New Cub from EBay
by Eddy Yesterday at 6:16 pm

» TD09 and 05 RC plastic fuel nipple
by balogh Yesterday at 3:52 pm

» On the Ramp Right Now: Beth and the Black Hawk
by modelbuilder49 Yesterday at 3:51 pm

Cox Engine of The Month
January-2020
MauricioB's

"Tee Dee .09 r/c TEXAN"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
The Traveling Prop
Gallery


1995 Puma Typhoon 2.5cc Empty
World of Aviation

1995 Puma Typhoon 2.5cc

Go down

1995 Puma Typhoon 2.5cc Empty 1995 Puma Typhoon 2.5cc

Post  ian1954 on Sun Mar 27, 2016 10:05 am

These engines were originally imported into the USA from Russia by Hobbyclub.

1995 Puma Typhoon 2.5cc 1995_p10

This is definitely not a use out of the box engine. The crankcase needed swarf flushing out of it and there were burrs on the cylinder liner.

Still to be fixed - the propeller driver stands off too far from the crankcase exposing the open ball bearings (it is a weepy) rather than shrouding them in. Need to examine this one carefully as the propeller driver isn't thick enough for a simple ream.
ian1954
ian1954
Diamond Member
Diamond Member

Posts : 2584
Join date : 2011-11-16
Age : 65
Location : England

Back to top Go down

1995 Puma Typhoon 2.5cc Empty Re: 1995 Puma Typhoon 2.5cc

Post  Ken Cook on Sun Mar 27, 2016 11:29 am

Ian I used these for practice combat. Very crude engines, ( Fox .35's of combat engines). But, they deliver moderate power. Nothing like a modern F2D engine. With the correct prop, I use the Russian glass props, they can turn up into the 27-28K range. I can get it to turn more but it's just not useable power. I made a Nelson head for mine. ABC construction which is somewhat like dinosaur in combat due to weight. I picked up two for $30 at a swap meet. It has a nasty attitude initially until broken in. It cost more in plugs than the trouble it was worth to do so.  This was very frustrating to break in. I had to add a lot of head shims and a lot of bench running which shouldn't be necessary for a combat engine but it was worth it. It now readily starts and is reliable. Unfortunately, it's real loud. I can only fly this engine at our sister field alongside of a airport due to the noise. I only run this on 10A% nitro. The rear exhaust is a pain in the rear. It can and will melt foamie wings even though the exhaust is directed in a Y. When you go to adjust the needle, the exhaust burns the hell out of your thumb. My findings were the same as yours internally. I chamfered many parts and cleaned up a lot inside.  Ken
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 3698
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

1995 Puma Typhoon 2.5cc Empty Re: 1995 Puma Typhoon 2.5cc

Post  ian1954 on Sun Mar 27, 2016 11:44 am

Thanks Ken,

Quite a few Eastern European/Russian engines have come my way recently and it is difficult to find any detail of information on them. What I can tell you is that this was originally sourced in the USA and had an original price tag of $64. For 1995, this was expensive.

It arrived to me with a replacement glow insert but, as usual, I have put it in a safe place and can't find it!

This one definitely needs more work before I attempt to run it but I do like the look of it!
ian1954
ian1954
Diamond Member
Diamond Member

Posts : 2584
Join date : 2011-11-16
Age : 65
Location : England

Back to top Go down

1995 Puma Typhoon 2.5cc Empty Re: 1995 Puma Typhoon 2.5cc

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum