another burn out :(

[autonm]

Ran my Cat SX2 first time tonight at the club. 1st race fine - steering needed tuning as expected.

2nd race it all went wrong. All of a sudden a grinding noise and car stopped.

The U3345/6/7 Gear CNC Idler in step 5 (of the manual) is melted to bits. Having read the previous post's about the burning of the slipper I was expecting that to go - but for some reason it was the other side to the slipper.



Any ideas why this side melted? Did I have the nut to tight or to slack on the spring side? I dont believe I had it to slack as I had about 4-5mm of the thread showing.

Any ideas - as yes I can easily replace it, but what do I change to stop it from happening again?

Thanks

[R&M-RACEWAY_ANTHONY]

hi ran my sx2 at the weekend and i had the same probam but i cannot understan why either?

[autonm]

oh dear... not what I exactly wanted to hear

Going to ring MK-Racing tomorrow (where I buy a lot of my gear), see if they have had similair reports or if they know of the issue.

The part is £5.99 to replace... I hope I dont have to buy one of these eveyr week

Please keep me up to date if your racing this weekend and how it goes

[moth898]

You're slipper adjust screw is way too tight, your slipper isn't working so something else has to give. Back it off until you see three screw theads and take it from there. I have mine about 1.5 mm from the end of the screw, that gives me about 6 feet of slipper action before it catches.

[Big G]

strangely my SX had iffy gears here, but I put it down to possible a tiny stone getting in there since I had to clean the teeth to get it smooth.

I bought replacements for both before I ran the car just to be on the safe side... my gears weren't stripped, just looked worn.

[bigred5765]

if its not a new car,check the bearings behind the cogs make sure theirs no slop.