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Tamiya Euro Truck Class

Old 10-12-2021, 11:44 AM
  #1381  
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Originally Posted by Kregger
Just curious. Has any one had a problem with the diff cases binding up the diff when tightened down? Building a second kit I had lying around for about two years and I'm having this problem. My first kit I had didn't have this problem.
Obviously you should check to make sure the diff is assembled correctly and there are no deformed parts. I also like to make sure there aren't any excessive burrs on the metal bevel gears parts that could cause binding. I like to keep a spare built diff in my parts box so I can diffs with different dampening properties. To build a complete diff from parts you will need...

Tamiya #50573 - 2x8mm screws (10 pieces)
Tamiya #51004 - includes internal diff housing, diff bevel ring gear & bevel pinion gear
Tamiya #51008 - metal bevel gears for the internal diff housing

You should be able to find these parts right now either directly at TamiyaUSA.com or Amazon.com at the time of this posting (October 12, 2021)

You can slightly affect the "feel" of the diff by how much you tighten down the three 2x8mm screw that hold the diff assembly together. You obviously don't want to over-tighten the screws so much that it deforms the plastic housing or bevel ring gear. But tighter screws = tighter diff, looser screws = looser diff. Again, this is a very minor adjustment. I prefer to tighten my diff enough for smooth action with no binding or loose parts.

If you really want to affect the performance of the diff, then you will want to use different types of putty, grease, or diff oils. However these are considered open diffs, so any oil will eventually leak out as there are no o-rings or gaskets to prevent leakage. This leakage can get into the diff bushings/bearings, so be prepared to perform periodic maintenance on these parts. Some people will will uses greases to act as a gasket for the oils to prevent leakage. There should be some tutorials in this thread or the TT-01 or TT-02 threads on RCTECH.net on how to put oil in the stock diffs on these cars.

As far as the legality of using oils in the diffs on an Eurotruck, rule 16.15 states the any grease or lube may be used to lubricate gear or moving parts. The current TCS rules can be found here...
https://www.tamiyausa.com/tcs/rules/
If racing at a TCS event, always check to see if there are any location specific rules or exceptions that must be adhered to for that event. Examples of track specific rules I've experienced include allowing people to remove the plastic heat shield by the motor, how much if any of the tire sidewall you are allowed to glue, and allowing square pack batteries instead of "stick-pack" style lipos.

Last edited by IndyRC_Racer; 10-12-2021 at 11:56 AM.
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Old 10-13-2021, 12:29 PM
  #1382  
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with the diff housing, I often sand the inside a tad where it looks like the gears are really close (to the housing). I also don't overtighten the diff' housing, it should be secure but not super tight.
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with using oil in the front diff, I run 1mil, yet after a few months of use and during hot months it does eventually leak out. Be sure to check it frequently ...you'll know you have a problem when it leaks into the front bearings and your truck randomly pulls from one side to the other on a straight.

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Old 10-13-2021, 05:16 PM
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I should have phrased it differently,. It wasn't the diffs themselves it was the case they fit into. "A" parts tree 51318 part 9. I had to dremel off some material where the bearings go. It seems like it was putting pressure on the bearing and causing the ring gear to apply to much pressure on the pinion.
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Old 10-17-2021, 04:11 AM
  #1384  
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A training at a French RC club with my Buggyra

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Old 10-26-2021, 05:34 PM
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Its going to be my loaner vehicle.
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Old 11-18-2021, 01:37 AM
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Does anyone know what the offset is for the 51588 wheels? I know they are different front and rear so I was looking for a different option for the fronts as seem to go through front tyres much faster than rears
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Old 11-18-2021, 09:36 AM
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Originally Posted by mcreeder
Does anyone know what the offset is for the 51588 wheels? I know they are different front and rear so I was looking for a different option for the fronts as seem to go through front tyres much faster than rears
I donít know what the offsets are but I do know they are the same as the rears that is why it is legal to run front wheels on all 4 wheels. They allowed it because the rears break easily.
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Old 12-01-2021, 05:33 PM
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Will a 48p 19tooth pinion work with the Tamiya 61t spur?

I see it says it will but multiple people say it’s not the same mesh?
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Old 12-01-2021, 05:52 PM
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Originally Posted by jgraham37128
Will a 48p 19tooth pinion work with the Tamiya 61t spur?

I see it says it will but multiple people say itís not the same mesh?

correct you need the metric pitch. I wanna say itís .6. Buy a hardened one to begin with and save yourself the hassle of changing it out. Mine wore very quickly. Hardened has lasted awhile and sounds so much smoother.
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Old 01-06-2022, 02:58 PM
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Finished up my Euro truck build this past weekend and have been pretty happy with the results! This was my first Tamiya build, which in hindsight, this model probably wasn't the best one to start with. That being said, I've had a blast running it around the garage and parking lots. Really wish there was somewhere to race these locally. It was built completely stock with the exception of aluminum motor mount, center shaft, and outdrives.

Only one real question: the manual doesn't mention anything about tire foam. Is that really correct? The tires feel a bit flimsy with just the rubber, so curious if that really is correct.

Pictures of the Final Result
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Old 01-06-2022, 03:08 PM
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No foam is the stock way of running them. Since you've already hopped your truck up, you could try adding foam. You wouldn't be allowed to do this if you're racing. Because of the unusual size, you'll have to figure something out.
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Old 01-06-2022, 03:10 PM
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Right on, thanks. I'll probably just go with no foam then. The aluminum parts are easy enough to remove if I do happen to find anywhere nearby racing these.
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Old 01-07-2022, 10:40 PM
  #1393  
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Hey folks I am looking at picking up a complete used TT01-E Euro Truck from someone on fb. My question is, Is $140.00 shipped a good deal for one of these trucks. I am kind of a noob and I donít know anything about them besides the couple reviews I have read. Any suggestions or advice would be appreciated TIA
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Old 01-08-2022, 02:05 AM
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Originally Posted by Johnryan30
Hey folks I am looking at picking up a complete used TT01-E Euro Truck from someone on fb. My question is, Is $140.00 shipped a good deal for one of these trucks. I am kind of a noob and I donít know anything about them besides the couple reviews I have read. Any suggestions or advice would be appreciated TIA
Does it come with anything other than the truck? Any electronics, battery, bearings?
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Old 02-05-2022, 03:26 PM
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Just looking for some updated info.

I have a Reedy Wolfpack 3300 thta came with a sct I planned on trying to use for this truck in our local class. Problem is the battery is like 2MM too long.

Kind of reaching out because this battery and a protek one are listed everywhere as being a recommended one. Am I missing something to get this guy in there or something?
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