| Author |
 Topic  |
|
ianholt
Average Member
United Kingdom
750 Posts |
 Posted - 28 June 2012 : 20:59:41
|
Just wanted to share my diff experience.
Almost everyone I speak to about the Blitz ESE says 'ditch the ball diff'. Mine was good at first and I liked the tune ability of it and last week I stripped it down, cleaned it and rebuilt it and it was still silky smooth and working great.
But then came the 2nd heat and after the race I was coasting back to the pits when I lost all drive. After inspection I found that the threads in the nut had stripped and caused the diff to loosen off. The nut I refer to is the plastic 'T' shape bit with the brass insert in it that sits inside the outdrive.
The realy annoying thing is that after hours of searching for information and parts availability that little part is only available as part of the diff rebuild kit costing about £30. So I have now ordered a MIP diff which is reported to be much better quality and parts are available seperately, it is also only about £23 from the US so it is cheaper than the standard rebuild kit and also cheaper than the gear diff.
Chris Spendlove has also had problems with his ball diff and now the Blitz ESE is available as standard with the MIP diff! So HPI must be aware there has been an issue? |
|
|
davecorah
Junior Member
United Kingdom
342 Posts |
Posted - 28 June 2012 : 21:27:33
|
| mines nearly gone too ian so ive ditched it for a gear diff 3000wt oil and its spot on |
 |
|
|
hpi_guy
Junior Member
United Kingdom
401 Posts |
Posted - 29 June 2012 : 08:45:47
|
| I doubt hpi will cover it as it is a mip product, at least with a geared diff if it does go it can sometimes still hold together to finish the heat |
|
|
|
davecorah
Junior Member
United Kingdom
342 Posts |
Posted - 29 June 2012 : 15:27:22
|
| the original ball diff is a HPI product will lol, the MIP one is the aftermarket replacement that is better., which has now been adopted as the part which gets included in the "latest" batch of kits, unforunately most of the kits still in shops are from the batch with hpi diffs in, and the new batch are only just filtering through |
|
|
|
admin
Forum Admin
United Kingdom
1189 Posts |
Posted - 30 June 2012 : 13:26:37
|
If memory serves correctly from speaking o HPI the MIP diff is only available in the ESE Pro which again you can only get in the States. I think all the European kits have HPI diffs. I will check when I speak to HPI next week and edit this post accordingly.
My diff only managed one 5000 pack in practice at Broxtowe, before it expired with the same problem as Ian's. Annoyingly it was properly built and silky smooth. But to be honest I was counting the minutes before it expired given the reputation.
I also had the drive pin slip out of a cvd but thanks to Will having a spare I a aged to continue for the day.
|
|
|
|
davecorah
Junior Member
United Kingdom
342 Posts |
Posted - 30 June 2012 : 21:57:03
|
email has been sent too hpi racing uk, explaining about problems with DIFF but also with aluminium ball studs. will report back on any reply i get etc.
|
|
|
|
hpi_guy
Junior Member
United Kingdom
401 Posts |
Posted - 30 June 2012 : 22:49:14
|
| Awesome, anyone want to buy a ball diff for spares? |
|
|
|
ianholt
Average Member
United Kingdom
750 Posts |
Posted - 01 July 2012 : 06:50:18
|
| A hpi diff Will! I may be interested but is it in good order as I would only want it for the nut, What do you want for it? |
|
|
|
hpi_guy
Junior Member
United Kingdom
401 Posts |
Posted - 01 July 2012 : 08:23:13
|
| The nut should be all good, I'll check after work later, swap for a burger and can of coke? |
Edited by - hpi_guy on 01 July 2012 09:14:02 |
|
|
|
ianholt
Average Member
United Kingdom
750 Posts |
Posted - 01 July 2012 : 10:34:58
|
| See you Tuesday, may just be enough to get me racing this week until my new diff comes! Cheers matey. |
|
|
|
admin
Forum Admin
United Kingdom
1189 Posts |
Posted - 09 July 2012 : 11:47:15
|
| Ok gents, after a long chat with HPI can you all tell me the exact problem you bave encounted with the diff please? |
|
|
|
davecorah
Junior Member
United Kingdom
342 Posts |
Posted - 09 July 2012 : 12:38:05
|
| After not long the diff slips and no matter how tight it is it will still slip and works loose during use. |
|
|
|
admin
Forum Admin
United Kingdom
1189 Posts |
Posted - 09 July 2012 : 13:36:42
|
quote:
Originally posted by davecorah
After not long the diff slips and no matter how tight it is it will still slip and works loose during use.
So is the nut failing or the thread on the bolt failing? |
|
|
|
davecorah
Junior Member
United Kingdom
342 Posts |
Posted - 09 July 2012 : 14:08:26
|
| Must be yeah. Stripped mine down at weekend and everything else seemed fine so must be the nut |
|
|
|
hpi_guy
Junior Member
United Kingdom
401 Posts |
Posted - 09 July 2012 : 15:09:35
|
| Ball studs are my issue |
|
|
|
ianholt
Average Member
United Kingdom
750 Posts |
Posted - 09 July 2012 : 21:50:07
|
| I now have a MIP diff, not installed yet but it is built and it is way smoother than the normal hpi one. If I tighten the blitz diff so it does not slip it becomes tight(almost locked) and gives under steer on the power but the MIP diff is still silky smooth and turns freely! The proof will be in the pudding though! |
|
|
|
Topic |
|
Topic Locked
