one way bearing help

[THE BOSS]

hey, i just got a new one way bearing for my roto start on my hp savage, but i just was about to open the package when i read it first and saw that it said that it was for a hpi savage pull start, it also said S-25 F series and nitro star g3.0. but i have a hpi 4.6 engine with roto start. it also says (21 BB) so i wanna know if i can still use this on my 4.6 and it will still work, or should i take to the hobby shop and exchange it for the right one. dont wanna be stuck with a part i can't use. so if someone could please tell me what the proper owb is thanks. i dont have my manual and the package on the owb also says 1430 thanks. hope you can help.

 

[olds97_lss]

HPI F4.6 Manual 1495
OWB: 1430
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDLN7&P=7

HPI K4.6 Manual 15201
OWB: 15233
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJYU6&P=7

HPI K4.6 HO Manual 15204
OWB: 15233
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJYU6&P=7

So, which 4.6 do you have? One of them uses the same OWB as what you bought. Two use a different one.

 

[Racer 1966]

To help identify your engine if it's stock, the F4.6 cooling head is completely round the K4.6 has a V looking milled area on each side.

 

[THE BOSS]

ok excellent thanks guys, i guess i have the f4.6 cuz its all round