RCCrawler Forums

Timmahh · 12-07-2008, 07:53 PM

hey all, got a VF Dig here. been working fine. but tonight im checking thru things and when its in 4wd mode, the rear seems like its connected via a week set slipper. that is it will turn the rear wheels, but if any resistance is supplied, the rear axle stops spinning. i can see the output shaft is also not spinning at the same time. so its not the drive shaft or anything in the diff/axle setup.

anyone run across the quirk, and what is the fix?
thanx in Advance.
Timmah

ol dirty dirt · 12-07-2008, 10:24 PM

sounds like your servo is not adjusted all the way in, i just had a comp this weekend and i took a pretty good roll down a hill started back up the hill and when i had a steep climb it would skip my rear axle i thought i stipped the rear gears but when i got home and took it apart it was fine all that happened was my servo must have skipped a tooth or something kuz my dig was not engaging all the way so i adjusted it and now it works just fine again, so give it a shot and good luck with it.............P III

bigflex · 12-08-2008, 03:06 AM

its either your epa's or it will do it if your not getting enough juice to the dig servo. Are you running a BEC? My sons did the same thing before I installed a CC BEC. The steering servo would draw to much power from the esc's BEC and the dig servo would not hold properly.

Timmahh · 12-08-2008, 07:42 AM

its not epas check them, it is fully engauging. looks like i have a inspection to do this afternoon. will post up what i find out.

i just stuck in a CC MM esc coming from a Goat. My Goat sensor wires started to act up so i stuck in my Mamba/5700 for shits n grins atm. no bec on the CC. but otherwise, the dig servo (ht 255) is working fine. get full throw (can hear the servo working against the bind of setting the EPAs to far. so doesnt seem to be that either.

derangboy · 12-08-2008, 09:56 AM

My first guess would be the set screw that holds the drive plate on the output shaft of the transmission.

Timmahh · 12-08-2008, 11:31 AM

hey good one. this is my first dig, and its been a few since i installed it, so dont remember all the inner pieces. thats a good possibility. will likely be the first thing i check

sddill · 12-08-2008, 11:48 AM

Quote:

Originally Posted by derangboy

My first guess would be the set screw that holds the drive plate on the output shaft of the transmission.

That would also be my guess...Just hope it didn't ruin the output :-(

Timmahh · 12-08-2008, 12:52 PM

other than a bit of bench touble shooting, i stopped running as soon as i noticed something amiss. if this is the problem, it should be fine (outdrive)

Timmahh · 12-08-2008, 04:13 PM

well, i just got it back together. Yes it was the set screw had loosened up a bit. THanx for the Help. Great tips, just what i needed.

Tim

Trugg · 12-08-2008, 07:09 PM

Quote:

Originally Posted by Timmahh

well, i just got it back together. Yes it was the set screw had loosened up a bit.

....I hope you used thread-locker this time

Timmahh · 12-08-2008, 07:54 PM

did last time too, just not too much. put some more on it this time and tightened it up well.

210solomon007 · 12-09-2008, 04:18 PM

Quote:

Originally Posted by Timmahh

did last time too, just not too much. put some more on it this time and tightened it up well.

If you need further assistance you can contact customersrvice@dna-rc.com . We will be glade to help out as well.

Timmahh · 12-09-2008, 05:45 PM

thanx for the info Soloman. If i didnt get it figured out yesterday, you acn bet your phone would of been Jingleing. lol

Thanx
Tim

12-07-2008, 07:53 PM	#1
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	VF/DNA Dig problem. ideas/help plz hey all, got a VF Dig here. been working fine. but tonight im checking thru things and when its in 4wd mode, the rear seems like its connected via a week set slipper. that is it will turn the rear wheels, but if any resistance is supplied, the rear axle stops spinning. i can see the output shaft is also not spinning at the same time. so its not the drive shaft or anything in the diff/axle setup. anyone run across the quirk, and what is the fix? thanx in Advance. Timmah

12-08-2008, 07:42 AM	#4
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	its not epas check them, it is fully engauging. looks like i have a inspection to do this afternoon. will post up what i find out. i just stuck in a CC MM esc coming from a Goat. My Goat sensor wires started to act up so i stuck in my Mamba/5700 for shits n grins atm. no bec on the CC. but otherwise, the dig servo (ht 255) is working fine. get full throw (can hear the servo working against the bind of setting the EPAs to far. so doesnt seem to be that either. Last edited by Timmahh; 12-08-2008 at 07:45 AM.

12-07-2008, 10:24 PM	#2
ol dirty dirt Pebble Pounder Join Date: Apr 2008 Location: central coast Posts: 170	sounds like your servo is not adjusted all the way in, i just had a comp this weekend and i took a pretty good roll down a hill started back up the hill and when i had a steep climb it would skip my rear axle i thought i stipped the rear gears but when i got home and took it apart it was fine all that happened was my servo must have skipped a tooth or something kuz my dig was not engaging all the way so i adjusted it and now it works just fine again, so give it a shot and good luck with it.............P III

12-08-2008, 03:06 AM	#3
bigflex I wanna be Dave Join Date: Jun 2005 Location: drillin Holes for the man Posts: 2,736	its either your epa's or it will do it if your not getting enough juice to the dig servo. Are you running a BEC? My sons did the same thing before I installed a CC BEC. The steering servo would draw to much power from the esc's BEC and the dig servo would not hold properly.

12-08-2008, 09:56 AM	#5
derangboy Newbie Join Date: May 2008 Location: Canada Posts: 44	My first guess would be the set screw that holds the drive plate on the output shaft of the transmission.

12-08-2008, 11:31 AM	#6
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	hey good one. this is my first dig, and its been a few since i installed it, so dont remember all the inner pieces. thats a good possibility. will likely be the first thing i check

12-08-2008, 12:52 PM	#8
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	other than a bit of bench touble shooting, i stopped running as soon as i noticed something amiss. if this is the problem, it should be fine (outdrive)

12-08-2008, 04:13 PM	#9
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	well, i just got it back together. Yes it was the set screw had loosened up a bit. THanx for the Help. Great tips, just what i needed. Tim

12-08-2008, 07:54 PM	#11
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	did last time too, just not too much. put some more on it this time and tightened it up well.

12-09-2008, 05:45 PM	#13
Timmahh RCC Addict Join Date: Jun 2008 Location: Mudville Posts: 1,592	thanx for the info Soloman. If i didnt get it figured out yesterday, you acn bet your phone would of been Jingleing. lol Thanx Tim

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