Originally Posted by jbothell (Post 14834)

More on my JD 710J project (is it really a project yet?). This is the part that really has me stuck. I think once I solve this I can get this project moving. I really want tires and wheels of correct scale height, width, rim size and tread pattern and made of nice soft grippy rubber.

I have accumulated maybe a dozen different tires and wheels from die cast, RC monster trucks and crawlers, etc. for this project and nothing is quite right. Either the rubber is hard like plastic or one of the measurements were not quite right (like, diameter perfect but way too wide).

At this point I'm not worried so much about the wheels - if push comes to shove I can turn these myself on my old 7x10 mini lathe or I believe there are one or two on this forum that might be interested in doing on a fee basis. It seems to me the tricky part is the tires. In my files from a couple years ago when I started this I found correpondence back and forth with a German manufacturer who would create rubber tires for RC trucks and tractors to custom spec. That company actually referred me back to PMD for order placement from the U.S. but I never followed through because the costs for two different custom sized tires would have been $500 or $600 total (additional tires were $20 each). This RC model is going to have cost a couple thousand or more upon completion so I'm not opposed to going this route if I have to (assuming it is still and option) but saving $600 would certainly be nice.

Here are the scale specs for the front and rear wheels and tires I am trying to locate:
Front:
Tire Outside Diameter: 2.71"" (69mm)
Tire Width: 1.07" (27mm)
Rim Diameter: 1.43" (36mm)
Rear:
Tire Outside Diameter: 4.14"" (105mm)
Tire Width: 1.5" (38mm)
Rim Diameter: 2" (51mm)

Any suggestions to help me find these would be greatly appreciated. I would be happy with +/- 1/4" (6mm) on any of these measurements. Posting the JD 710J picture yet again to show tread pattern and rim style I'm looking for.

http://i306.photobucket.com/albums/n...NV192079_0.jpg

Regards,

Joe.

Originally Posted by pumptech (Post 15216)

Glad to see this build :D,The backhoe is my favorite machine.Just a all around good machine,able to tackle a lot of jobs with it.
I'll be watching ,good luck with the build,hope all goes well ,looking good so far.:)

Found this Case backhoe a while back ,emailed a sales rep ,said they had two on hand ,may be sold out,last Oct when I checked on it.http://www.outbacktoystore.com/Anniv...Loader-Backhoe

Originally Posted by grumpygrady (Post 15191)

did you say that you found the right size but they are hard plastic?
if this is a yes you can make a RTV mold and pour your own tires in whatever softness of rubber you want
if you don't want to do this send me an e-mail and we we talk about me doing this for you

or i think it was IHhauler just did this for his scrapper

Originally Posted by Lil Giants (Post 15082)

Nathan, don't know for sure it's capacity, but I'd guess it to be 50ml. Not enough for wdc's 3stage telescope by itself, however I'd think you could tie this reservior tank to the fuel tank on the other side as well. This minature pump/tank is moreso I think for double acting cyls.

Originally Posted by JAMMER (Post 15084)

Nathan Scale Art sells two size tanks and pump the one for the dump trailer. The tank is 115CM3 240 ml. This does there 4 stage. It does 12 bars and is 326.89 Euro. Ed

Originally Posted by pumptech (Post 15216)

Glad to see this build :D,The backhoe is my favorite machine.Just a all around good machine,able to tackle a lot of jobs with it.
I'll be watching ,good luck with the build,hope all goes well ,looking good so far.:)

Found this Case backhoe a while back ,emailed a sales rep ,said they had two on hand ,may be sold out,last Oct when I checked on it.http://www.outbacktoystore.com/Anniv...Loader-Backhoe

Originally Posted by jbothell (Post 15300)

Grumpy - I might just contact you about the tire mold service. Going to keep looking for another week or two. The rear tires on the old Ertl at start of this thread are almost perfect dia and width but tread pattern not so great. BTW...any how-to threads on the topic?

http://i306.photobucket.com/albums/n...l/ErtlTire.jpg