Project: Custom RC(excessive amount of pics)

[scoobydoo2u]

Well, I was thinking of something to get into then I seen a thread that Digger made asking about RC Jack.

After looking at his works of art I've decided upon a project.

I just want to let it be known this will not at all be comparable to RC Jacks custom pieces, but it should be a fun build.

Also this will be a scavenging build, so in other words I am looking for parts to make things work.

I don't have access to mills or things similar to make the parts I can't find, so I will be posting a "Parts needed" list if you can come up with an idea for the part that is needed let me know and I will look it up!

On with whats done so far!

I am using a go kart frame for a small portion of the chassis.
The Go kart:

The thing doesn't look like much but it's heavy on the scales at nearly 100 pounds

The engine:
it also has seen it's better days

The stripping it down

Ugh, Thats not a good sign

Well photo bucket is down for maintenance

But I am not to much further in the what you see..
I will try to update again tomorrow.

Parts I need ideas for:

differential- This is going to be a independent suspension RC and I want a differential not solid axle

Tires- I'm thinking medium sized tiller tires for rear and something smaller upfront.

Drive shafts- 3 of them they need to have 2 universal joints on each one
if any one has any ideas on what I should look for i will be very grateful

 

[h8z2luze]

This looks like a cool project!

 

[scoobydoo2u]

You know even though I'm not far in I am still loving every minute of it!
Its been a blast

 

[WoodiE]

Man this thing would be a blast to run around the local skate park




-Michael

 

[CharliesTheMan]

I REALLY like this project. I've been considering something similar but I just don't have the time. Best of luck to you, we all want to see this completed. Let me know if there's anything that I can help you with, I have a hobby room full of spare parts and like to help fellow members out when I can.

If you need some parts, let me know. We are a full service CNC Machine shop at East End Machine, and Joe can machine pretty much anything under the sun.

 

[insaneatvs]

Boy looking at these pictures took me back to the days when we raced go-karts....good luck with your project....can't wait to see it done

 

[scoobydoo2u]

Thanks for the support everyone and thank you very much for your offer Charlie!

Heres some more pics.

Crank shaft

Pile of parts after stripping some off of the main frame

Those were before cleaning it up
After a cleaning then sandblasting:
Only external parts were sandblasted even though I do have internal parts in these pics.

Looks pretty good I think, but its dull and will not look very good after awhile.
Shiny silver will make it look nice though.

Chassis in the sand blaster. soda can at far end for size comparison.Thats a clutch laying there with it.

At around 5' 4"long and about 1' 4" wide(Just the chassis, it will have A-Arms that will make it much wider) its a good sized rc

I'm putting this piece back on and cutting it off and welding up to holes as a sort of side rail. It will be cut where the blue clamps are at. It to will be put in the sand blaster

Now thats a clutch! Six shoes and a heck of a spring!

Paint for the engine block:

Next post I will post pics of the engine as it sits now.
It doesn't seem like much progress, but it's time consuming no matter how fun it is.

 

[CharliesTheMan]

Man it's coming along great.

 

[scoobydoo2u]

Short video of some blasting.
Sorry its not a very good example, I was holding camera and couldn't see what I was doing very well.

 

[bentover]

I can just see Bubbles from TPB getting in on this action!

 

[SMaxxin]

Woooo this should be a very interesting! Looking good so far scoob...blasting boxes are fun, I'm jealous

 

[Racer 1966]

Nice project!

Not sure how much you know about bead blasting, but you need to give everything a boiling hot water bath afterward. Especially internal engine parts. The beads will imbed in the metal, the hot water will expand the metal and allow it to release the imbedded beads.
Also, do not blast anything with small intricate passages or baffles. The beads will get trapped and then it's nearly impossible to get it all out. That is until you start the engine, it works loose into the crankcase/cylinders and you end up with scrap metal. Trust me, I learned this stuff the hard way many years ago!

 

[scoobydoo2u]

Nice project!

Not sure how much you know about bead blasting, but you need to give everything a boiling hot water bath afterward. Especially internal engine parts. The beads will imbed in the metal, the hot water will expand the metal and allow it to release the imbedded beads.
Also, do not blast anything with small intricate passages or baffles. The beads will get trapped and then it's nearly impossible to get it all out. That is until you start the engine, it works loose into the crankcase/cylinders and you end up with scrap metal. Trust me, I learned this stuff the hard way many years ago!

I have sandblasted alot of different things, but never an engine.
I didn't know that, although it makes sense, you almost have to be used to using it to believe how fine this stuff is!
Learn something new every day, thanks for letting me learn from your mistakes before they become mine
I gave them a nice bath but the water was far from boiling, it was from the water hose.

The exhaust port and intake and both output shafts were blocked with paper towels just to cut down on the sand inside it, even though I knew it wouldn't keep it all out it helped a lot.
I will boil some water for them and they will get a bath!

 

[scoobydoo2u]

Just a little update.

My box of gaskets, piston rings, and a muffler arrived last week I believe, but I haven't been able to work on it much more other then painting some more.

I do still need an idea for 2 drive shafts from the rear drive to the tires.

They need 2 pivots, no certain length is needed. I can cut and reweld them if necessary, and they need to be able to handle abuse.
I am aware I can buy custom ones, but its just not realistic to pay that amount for something like this, so if any of you can think of what I can look for them on in a junk yard or ebay I would appreciate it!

I will update again probably when then engine is mounted, thats when it should start rolling, but even then I need drive shafts to make the rear A-arms off of.

Thanks for your help!

Woooo this should be a very interesting! Looking good so far scoob...blasting boxes are fun, I'm jealous

Thanks Smaxxin!
They are pretty fun to to play with and they are very useful.

 

[Lessen]

Great thread! Lovin all the pics and vid :thumbup:

 

[scoobydoo2u]

Just another small update,
I will be putting a WTB request on here for a small self contained differential.
Strong enough to handle at least 3 and a half HP and shaft size doesn't matter as long as it's not over about an inch and a half diameter.

Started work on A-Arms as well.
Got to go for now but I will try to update with pics tomorrow.

 

[h8z2luze]

Just to let you know if you plan on using that clutch you can get them new for about 35 bucks or so I think. They also make something like a belt drive one thats MUCH better for around 75 I think. I only remember this from what my dad told me when he was building my go cart about 10 years ago so forgive me if its a little off. I know we blew 3 of those clutches apart. (literally) I think its cause it was a straight axle though.

something like this...


http://cgi.ebay.com/Comet-40-series...tcZphotoQQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[scoobydoo2u]

Ok thanks man!

From what I remember the go kart ran fine before it stopped being used years ago, so I'll see what happens but I will keep it in mind!

Thanks again!

 

[h8z2luze]

Ok thanks man!

From what I remember the go kart ran fine before it stopped being used years ago, so I'll see what happens but I will keep it in mind!

Thanks again!

no problem they also have those clutches on ebay for like 30 bucks I saw too.

 

[Flameninja00]

nice build scoob! if ya need any (dead weight) help, just ask!