HPI Pull-Start One Way Bearing: 21BB, S25, F4.1
[HPI1430]

HPI Pull-Start One Way Bearing: 21BB, S25, F4.1
James Berry - Rating: 3 of 5 Stars! Thursday, May 15, 2014
let me start off by saying that, i have had my 4.6 savage x for a year, love the wheelies and the power. i have changed the suspension uprights forward and rear, so with the original roto start on the car, the motor is driven directly via the roto start shaft and starter motor or your drill gun on forward rotation. that being said. i twisted off or broke the tip off the stater shaft, cause of the extreme angle the upright put the shaft at while starting. i ordered the replacement shaft and soon found out the replacement was changed to a dog-bone style and NOT the original rounded hex head drive that came with the car!! very frustrating to say the least. some hours later after i couldn't find the part on any of the major hobbie shops i deal with didn't call me back after i called and left a trouble call with them. i was pissed and thinking of selling the car. I finally called HPI. the tech told me i had one of many cars that were sold, and hpi didn't tell anyone they changed the back-plate configuration back to a previous style of set up inside. well i took the parts list he gave me and looked up the picture parts list and compared the parts with the originals as well as compared them to the parts of the 5.9 motor, i have the 4.6. and guess what the parts he told me to replace were the same ones that came originally on the car. THE ONE WAY BEARING IS THE ONLY THING I HAD TO REPLACE. AND THE 5.9 ONE WAY BEARING IS THE SAME AS 4.6 AND WAY CHEAPER. BUY THE 5.9 ONE WAY BEARING. don't forget the direction of installing the one way bearing. ALSO i had bought the ofna roto- start back-plate. it was cheaper and at a corrected angle for the new dog-bone starter shaft. i also have had to reverse the drill motor to accommodate the new starter set up. i have had the new setup for 2 days and so far so good.