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Cox Engine of The Month
August-2024
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
FROG 2.49 diesel
Page 1 of 1
FROG 2.49 diesel
I always liked the looks of the FROG 2.49 BB diesel. I understand that the weak point is damage to the crankcase. Especially when that huge front bearing hits.
One I bought new in mid fifties (left), one from online auction (top), one from GSCB club sales (R) ...
George
One I bought new in mid fifties (left), one from online auction (top), one from GSCB club sales (R) ...
![FROG 2.49 diesel Frog2410](https://i.servimg.com/u/f86/17/00/06/17/frog2410.jpg)
![FROG 2.49 diesel Frog2411](https://i.servimg.com/u/f86/17/00/06/17/frog2411.jpg)
George
gcb- Platinum Member
- Posts : 908
Join date : 2011-08-11
Location : Port Ewen, NY
Re: FROG 2.49 diesel
I have a couple of these and like the look of them. They are also exceptionally easy starters.
http://sceptreflight.net/Model%20Engine%20Tests/Frog%202.49%20BB%20Modified%20(2).html
As in the above review, they do get hot - very hot for a diesel but this never affected running and made it much easier for a restart.
I never came across any crankcase problems because of the bearing but I do know that a gummed up one is difficult to dismantle.
I was once given one of these because "the spring starter" was broken. The owner didn't realise that it didn't have a spring starter and that was the dust cover for the bearing he was looking at!
http://sceptreflight.net/Model%20Engine%20Tests/Frog%202.49%20BB%20Modified%20(2).html
As in the above review, they do get hot - very hot for a diesel but this never affected running and made it much easier for a restart.
I never came across any crankcase problems because of the bearing but I do know that a gummed up one is difficult to dismantle.
I was once given one of these because "the spring starter" was broken. The owner didn't realise that it didn't have a spring starter and that was the dust cover for the bearing he was looking at!
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 70
Location : England
![-](https://2img.net/i/empty.gif)
» 1955 Frog 1.49 "Vibramatic" Diesel
» An army of Frog 80s
» My DIESEL fleet and Diesel fuel blending DIY
» Enya .15 diesel MK II
» Diesel Fuel Question
» An army of Frog 80s
» My DIESEL fleet and Diesel fuel blending DIY
» Enya .15 diesel MK II
» Diesel Fuel Question
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