Jump to content
  • Join our community

    Sign-up for free and join our friendly community to chat and share all things R/C!

hpi savage flux


conchp

Recommended Posts

Okay so i just took my savage flux out, after 10-20 mins i encountered a problem with the truck.

As i pressed the throttle in the front wheels where ballooning, the back 2 where not. The front was fast but getting no traction to move so although the wheels where spinning fast enough to balloon they just didn't move the truck and did more of a burnout than anything, the back wheels just seemed to be trailing along.

When in reverse the truck was normal as if the truck was fine. 

I brought the truck back to me to look.

When the wheels are off the ground ALL 4 move.

When REAR wheels only on the ground and throttle is pressed the front wheels move only and the truck does not move.

When the FRONT wheels are on the ground only, the truck does pull and try to move.

Please help i hope iv given enough info for someone to know what the problem is

any help would be much appreciated

Link to comment
Share on other sites

I did post on this, but it's gone now.

I reckon you're looking for a lost grub screw, possibly on the output drive-cup from the gearbox or the drive-cup that feeds the rear diff.

Failing those two options, you'll need to strip and inspect the rear end. If you're new to that, keep your exploded drawings handy.

  • Like 1
Link to comment
Share on other sites

ok guys so ive looked again the back wheels spin freely, and dont move the diff or whatever,so it seems its in the centre where the 2 wishbone things meet at the back that are conneceted to the hub ?

not the 2 near the diff how whould i sort this

Link to comment
Share on other sites

ok guys so ive looked again the back wheels spin freely, and dont move the diff or whatever,so it seems its in the centre where the 2 wishbone things meet at the back that are conneceted to the hub ?

not the 2 near the diff how whould i sort this

Have you checked the Hex inserts as stated above this is a typical symptom

Link to comment
Share on other sites

ok guys so ive looked again the back wheels spin freely, and dont move the diff or whatever,so it seems its in the centre where the 2 wishbone things meet at the back that are conneceted to the hub ?

not the 2 near the diff how whould i sort this

So are you saying that the back wheels spin bud don't spin the driveshafts that lead to the rear diff?

  • Like 1
Link to comment
Share on other sites

Take the rear diff out and remove the screws holding the ring gear on. Be careful not to strip the heads on the screws. Make sure you get a snug fitting screw driver and apply a little heat to the diff case(if they are alloy, should be)in line with the screw you are removing. It will soften the threadlock on the screw and make it easier to remove. Once you have all the screws out, check the internal gears and drive pins for damage. While the diff is out check the pinion gear that is inside the bulkhead for damage.

Post pics and let us know how you get on.

Edited by DannyP
  • Like 1
Link to comment
Share on other sites

well stripped the rear end today, no teeth missing, pins on sun gear ect all intact only thing was the 4 screws loose, put it all back together and tested  and all seems good, everything on the drive train is goes no loose or missing screws or broken cups, just see how it goes in the next few runs, thanks for the help guys

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...