YZ-834B Restore

[Asso_man!]

I see now! Strange... No holes to attach the bumper either?

[vintage AE]

I see now! Strange... No holes to attach the bumper either?

Yup, 3 holes in the front. It had a Hot Trick bumper on it.

[vintage AE]

I had to file down the shaft after getting the bearing stuck on it. I just about broke the shaft at the pin hole wrenching on the thing .

Time travel ahead 30mins...

Needless to say the shaft is now bent, but everything is apart with any breakage. The gear and shaft are beat up and shouldn't be reused.

[a01butal]

As far as this being an RPS chassis, maybe but it is not the stock one but I have seen one other as I believe RC10resto has one in the same shape as yours. Here's a picture of the standard shape stock chassis.

[a01butal]

I have another front shaft if you need one.

[vintage AE]

I have another front shaft if you need one.

Oh how you make me blush The shaft I am using is pretty straight

As far as this being an RPS chassis, maybe but it is not the stock one but I have seen one other as I believe RC10resto has one in the same shape as yours. Here's a picture of the standard shape stock chassis.

It's definitely not the same shape as that chassis.


So, since I have a non original chassis, and I have options with the front assembly, what to do? I can keep it original with all NIP parts, minus the bulkhead, or I can use this highly suspicious package with handwritten "ZB10D" written on it with a BITD cost of $42.00. My gut says to keep it original, but I really, really want to use the hop up. I can tell from outside the bag it's a diff assembly with a diff screw on the outdrive side I will PM Rod and see what he wants me to do. If it's "keep it original", then I'll sell the front diff for $42USD lol.

Help please, it looks like the package with the front and rear sprocket set both 13T could be associated with the front diff I'm thinking about installing? I will use that package if I used the ZB10B package? If I keep it original, then I will use the 12T & 13T package? I think I got all of that correct?

[a01butal]

In picture top right sprockets are for original 834B front and rear sprockets are either same or similar, the lower right package is for the RPS version where the black sprocket is for the RPS slipper. The ZB-10D is a bit different than the normal one that came with the original 834B and the RPS stock one. I would like to see a closer picture of this package and as far as I know there was never a front diff or any other change to it but I'm probably just not aware of that version if that's what it truly is.

If you are going to use ZB-10D then what parts go with it , do you have a sprocket for this version?

[vintage AE]

lol, yeah, ZB10D makes more sense than 2B10D

I took some closeup shots. It looks as though it just replaces the left out drive shaft and gear. The right outdrive would slide on the end as the original did.

You can see the diff screw from outside the package. There is also a washer under the head of the screw. The gear and outdrive rotates separate from the shaft in both directions and you can kinda feel the balls rotate when moving them.

The shaft is flattened on one side just like the original.

[a01butal]

I see it's all right there in the package. That's a new one for me but it's a big world and I wasn't involved with these cars bitd. That's a really cool part. I'm going to convert to belt drive on my current build and that wouldn't work with this part but that's definitely cool!

[vintage AE]

It must be a rare gem then.

I'm going to just bypass Rod on this one and I'm going to keep it NIP and keep the car as original as possible. He's away right now and wouldn't get back to me before I want to move forward lol.

[a01butal]

Anthony, I've been looking at the original manual on Oople and they show the same chassis that you have so maybe you do have an original early RPS chassis as shown in the manual.

http://www.oople.com/rc/manuals/yz834b/imagepages/save0002.html

[vintage AE]

Anthony, I've been looking at the original manual on Oople and they show the same chassis that you have so maybe you do have an original early RPS chassis as shown in the manual.

http://www.oople.com/rc/manuals/yz834b/imagepages/save0002.html

Thanks! I've been using that for reference on the build, very helpful.

These shocks aren't any better than the 870C shocks , worse! Such a strange concept. I wish I would have taken photos, but I got wrapped up in simply assembling them correctly.

You have to insert the shaft and piston assembly into the body, attach the lower spring cup assembly, depress the shaft into the body, fill it with oil to the top of the shaft (piston is not at the top), work air bubbles out, install the o-ring assembly to the top of the shaft when the shaft is fully depressed, then install the shock cap (which has a flippen hole in the top), install spring over body and install the top spring retainer. Oh yeah, did that wrong the first time...hole in top of cap...what the hell.

Anyway, shocks are polished and spit on

[RC10resto]

Very nice, what took you so long
In the time you restored that I thought about restoring one

[vintage AE]

I'm in the field working and doing this on down time

Otherwise it'd be done and painted already.

[vintage AE]

All done but the wheels and the body

I'm pretty happy with how she turned out. I might play around with the rear shock to see if I can stop it from pissing oil everywhere, but she even looks pretty lubed up