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Thread: Servo Saver Problem

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Old 10-12-2008, 06:25 PM   #1
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Default Servo Saver Problem

Hi,
I got a problem at my original servo saver for CR01, i got it out crawling yesterday afternoon, suddently the steering got loose..i go check the servo saver teeth been wear out....is this normal? any suggestion what servo saver i should used? i'm using hitec servo HT645MG.
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Old 10-12-2008, 06:30 PM   #2
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Yep it happens all the time, the more force you place on the steering the more likely it is to strip the spline out, I have 2 supers with 1/4 scale servo's on them both and I use the alloy servo savers. I have hammered them and have yet to strip one. Its the 1st thing I do when I put a servo saver on throw away the plastic and replace with alloy.

My CR-01 has alloy one fitted also and no problems so far
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Old 10-12-2008, 06:31 PM   #3
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How's things Spec-R? Been a while ;)

Personally I would ditch the servo saver and just get a good servo horn ;)
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Old 10-12-2008, 08:58 PM   #4
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Where can i get de alloy one??

Hi genki...yea its been a while....ha ha busy lately....never know you into crawling after i join the forum.everything was find. so i can direct used the servo horn instead of the servo saver? will it damage the servo??...u know now adays good servo is pricy..hee hee
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Old 10-12-2008, 09:58 PM   #5
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The reason you are having a problem is because none of the splines in the kit are for hitec servos. I ended up getting a pack of hitec airplane servo ends because of the offset and length you need to clear the bumper i could not find an alumminum one to fit.
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Old 10-12-2008, 11:34 PM   #6
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Quote:
Originally Posted by CConROCKS! View Post
The reason you are having a problem is because none of the splines in the kit are for hitec servos. I ended up getting a pack of hitec airplane servo ends because of the offset and length you need to clear the bumper i could not find an alumminum one to fit.
ok now i understand why...thanks. as lastnite i did try one heavy duty servo saver..it was too big and low...i think i need to find some more.
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Old 10-13-2008, 02:40 AM   #7
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i haven't had any problems with the original servo saver and i have a hitec 645mg on it and i run mine hard as hell
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Old 10-13-2008, 03:53 AM   #8
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I had the same problem with I was running hitecs. Now I have two ACE 1313s on mine, I am using the stock savers with no problems.

I will need to get metal ones as part of my all-metal plan, though.
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Old 10-13-2008, 04:46 PM   #9
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Ditch the servo saver and get an aluminum servo arm.....
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Old 10-15-2008, 11:09 AM   #10
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I use Traxxas maxx servo savers on all my trucks,never broke one. Works perfect on the CR-01.
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Old 10-15-2008, 11:42 AM   #11
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Spec-R .. ditch the servo saver they flex to much.
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Old 08-04-2009, 03:41 AM   #12
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bump and a question

what screw do you use for the 645MG and the stock servo saver? The Tamiya kit has 2 3mm screws which are too wide, and one 2.6 which seems the right thickness, but the thread is wrong. Does the kit have a finer threaded 2.6mm screw somewhere? Can I just use the one that comes with the hitec (which is shorter than the 10mm Tamiya ones)


Finally, if I decide to upgrade, what would be a recommended metal replacement - ideally something that'll bolt straight on - don't mind if it has a servo saver or not.
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Old 08-04-2009, 04:28 AM   #13
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hmm. Well the 'hi torque servo saver' kit I got (p/n 51000) for the rear steer, includes a 2.6 x 10mm standard screw (non-tapping) so clearly Tamiya realised some people have servos needing a 2.6mm screw. Shame they didn't add that into the CR01 kit though...

Still, the 8mm-ish servo screw seems to bite, so that'll do for now.
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Old 08-04-2009, 06:56 AM   #14
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Just get a decent servo and you won't need any saver. I use JR 8911 (DS) and at 25kg of torque there's little than can stop it. With a saver and such torque you would actually force the saver open if the wheels couldn't move.

JR also makes a nice assortment of very high precision machined aluminium arms that can be trimmed to size for any application and they're quite cheap. I use two of these for steering.
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Old 08-04-2009, 12:15 PM   #15
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Quote:
Originally Posted by 1rcmonster View Post
Ditch the servo saver and get an aluminum servo arm.....
x2
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Old 08-04-2009, 12:42 PM   #16
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No need for a servo saver, the CR-01 doesn't do any more than 5-7mph, I doubt you'll smack into anything hard enough to break the servo.
I just have a servo arm and thats all. Same servo as you.
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Old 08-04-2009, 03:44 PM   #17
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Two things

As many of the folks have said ditch the servo saver for a metal arm, Losi do a nice line in them.

The Hitec 645MG uses an M2.5x6mm or 8mm long screw.
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Old 08-05-2009, 10:05 AM   #18
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i had the same happen to my saver on my 645. when it happened i just put the one for the airtronics servo in it and its held up for 5 months so far
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