Has anyone added gear downs to the Tamiya gear boxes in the Jagdpanther the Schumo gear down kit wont work for the Jagdpanther gearboxes if you have were did you get them or how did you do it with out changing to some other gearboxes .

Thanks
Jimmy

The typical 3:1 gear downs we use on most tanks won't fit due to the limited clearance imposed by the hull front slope. Though you have ruled out this option, Impact claims that their replacement gearboxes with gear-downs will fit in the Tamiya Jagdpanther. I bought a pair but have not installed them yet. From the looks of it, I believe they will. - Gerry

The problem is not in the front armoured plate, but in the main gun trunnion running side to side in the hull. However, Jimmy, I would recommend the 8 tooth motor pinion for a roughly 20% speed reduction, as the only viable option, knowing what we know about the other option.

http://www.etoarmour.com/product_det...roductID=HTK01

Hi Jimmy,

I had the Impact gearboxes in my JP they were very robust and sturdy. I had the removable Impact gear reductions on them and the tank was too slow for my taste and battle style. I did have increadible torque even at 8 hits but it was very s l o w...... Not very goood on a turretless TD.

Bob

I have the impact gear boxes in My Jagdpanther and find them to be extremly noisy
I dont mind them being slow but the gearboxes can be heard over the speaker sound at full volume

ok thanks
Jimmy

Impact boxes are noisy. They a;; are. You should hear mine that Willy customized. Even with blue printing the entire box it still makes one hell of a racket. But with 88:1 ratios, that is not unreasonable. As Far as being to slow all you need to so is add a 12 or 13 tooth pinion gear. That will get the speed back up without losing the torque.

I run Impact in my Henschel KT and will also in my Porsche KT with the gear reduction yes they are noisy and wont quit down unless you grease the hell out of them but then it flings it all over the place .
I run Tamiya gearboxes when I buy the kit and am adding Schumo gear reduction if will fit .
In my HL converted Tanks I am now running Asiatam .

Jimmy

Hi I am getting a Jagdpanther and after adding the 3:1 from ETO and seing here that they will not fit i started to do some looking and found this.They are from <font size="5"><font color="#666666">RC4WD Ultra Compact </font><font color="#3366cc">2:1 Gear Reduction Unit for 380 Motor.
What do you guys think ?</font></font>

10 tooth pinion?

I highly recommend to any rc tanker that he heavily lubircate his gearboxes. I just had to replace the right gearbox for a customer. He had the tank just over a year and battles it at Danville each battle weekend. He did not lubricate the gears regularly. The soft brass was worn to the nub and showed signs of heavy directional wear. He had no forward but still had reverse. This is common due to the loading and shifting of the gears on the shafts. As for the grease flinging around, it is a very simple fix on the Panther bodies. Seal all the holes and gaps in the front of the hull and shafts ( do this with silicone and lightly coat the shafts with oil to keep the silicone from sticking to it) or pack some foam around the shaft. Oil attrracts dirt like old ladies to bingo halls. Make a motor and gearbox shield to keep the dirt out/grease in. Try a rectagular piece of clear plasic (like from a molded clear plastic package). Make it OVER-sized and heat it with a heat gun or blowdryer to bend it into a form fitting cover. Seal the four edges with wide electrical tape and overlap onto the front of the lower glacis. I'll post a tread on this soon.

Bob

Say Bob I looked at the RC4WD site and found this would this work for the Jagdpanther or do it look like it would make the motors to long .

http://store.rc4wd.com/products/3%3A...540-Motor.html

Thanks
Jimmy

Jimmy, as long as you are using short cans it should fit in a Panther. Panther has virtually the same usable width inside as a Tiger 1. However, our motor output shafts are 2.28mm diameter, and this one lists 3.17. Ergo you will have to either bore out your existing pinion gear to the 3.17 diameter (actually 3 mm will do it) or use their pinion gears, which you then must ascertain are 48 metric pitch. Otherwise, should work. However, I'd go more for the original listing, as obviously it bolts up to the Tamiya Type 3's as in the photo.

The only fly in the ointment besides those mentioned is, will this hold up to pulling our overweight beasts around the countryside and over hill and dale, and the rigors and abuse of combat.

Good point on how would they hold up . Well just ordered a set I guess ill be testing them .

Jimmy

OK, let us know when you receive them and how they do. Interesting concept for a gear down though, very interesting.

Hi Jim,

I would be more interested in trying the 2:1 gear reductions before the 3:1 as the latter makes the tank too slow. The 3:1s on that link should fit but the shafts will not match the pinions so you will need to alter them. You will also soon be needing a mini gear puller as well if you want to play mix and match with gearboxes and motors. Some pnions are pressed on and some are secured with a set screw. You will also need to verify the pitch will match on the gears used. I use a heat gun to warm up pressed gears and a mini hammer or spring loaded center punch to fine set the pinions. Measure the offset and mark the shafts to enure proper alignment. NEVER hammer or press on the gears without supporting the shaft from the opposite end of the motor. I have been a auto mechanic for over 30 years and one trick that I use for the tanks is to insert a thin strip of paper between the teeth of the gears to provide the best relief or gap to eliminate binding.

I didn't hear anything on the lubrication issue or gearboxes covers idea...... What do you guys do?

Bob

Ok sevoblast will do I have seen someone else last year talk about this kind of gear downs but can't for the life of me remember who .

thecommander I have some very thin sheets of plastic I have used in the past as a grease shield on the KT that will slide under the front guides and around the motors and keep the electronics clean .
Im trying the 2:1 i have a set of gear pullers for rc motors they help .


Thanks
Jimmy

Jimmy, did you ever get these 2:1 reduction gear units? If so, how did they perform in your Jagdpanther?

One of my friends is using them in his Panther. They run well but too slow. He is planning on replacing them with 3:1 reductions.

Forgive me, but wouldn't 3;1 be slower? I would try a larger pinion gear.

I was inquiring about the Jagdpanther like the OP, not the Panther. After reviewing the posts that I can find on the subject, it would appear that the only readily available option for obtaining 3:1 reduction in the Tamiya Jagdpanther, is to install Impact Gearboxes in it. The Schumo units apparently fit in the Panther, but NOT the Jagdpanther (some part of the Jag's gun mechanism doesn't allow clearance for it). Is this correct?

Also, 3:1 should give a slower speed than 2:1, not faster.. Those 2:1 units have been removed from the above mentioned website, like they are no longer available.. Another thread said they do not mate properly to Speed 380 or 400 motors.. Given that, I'm surprised your friend got them to work in his Panther. Is his Panther a Tamiya?

http://www.youtube.com/watch?v=eNAQq...layer_embedded
http://www.youtube.com/watch?v=L1pDr...eature=related

Guys, sorry but I actually do not remember what he was complaining about: being too slow or too fast. But I firmly remeber his intension to get 3:1 from Schumo instead of those. He installed these 2:1 on his Tam Panther.

That's correct.  I tried to fit a set of the Schumo gear downs in my JP every which way possible and failed.   I couldn't get the traverse to clear.  Now, I've got Impacts in my JP, but wouldn't go that route again.  Instead, I'd just put some 8 tooth pinions on the motors.  They work pretty good.  If you want even slower, try adding some stator rings to slow it even further.  That's 2 mods at about 10 bucks each.  <br type="_moz"/>

Have not had a chance to try them everything packed away moving into new house after Thanksgiving but what I have read from other posts they may not work so good and may have to cut down motor shafts .

Jimmy