Port Matching e50

I want to start out by saying I know it's not perfect but once i went too deep on one side I didn't want to push my luck, I figured this is better than nothing.
This is for a "Cheapo 70cc Cylinder Kit" from www.1977mopeds.com

Install the gasket to mark the area that needs removed.

My markings with the gasket and studs removed

Some of the tools I used. 

The Bad Side
This is where it all went wrong. I guess the gasket outline
method isn't always the best. It looked like i had plenty of
room but I guess I was wrong. I stopped as soon as this
happened. Then I made a visit to the Moped Army to see
what my options were.

The First Side
It went pretty well I did smooth it out a bit more
afterthis picturewas taken.  I used a file and
sand paper for that. 

Main Gear Bearings

All went as planned, took off the old bearings with my puller and pressed the new ones on. 

Pulling off old bearings

Image of bare shaft

Installed snap ring

Image of both bearings installed, I used a press for the one on the right and
 a rubber malled  for the one of the left.

Painted sprockets and brake assembly

I painted my rear wheel sprocket, brake assembly and my engine gear sprocket. 

I'm going to reassemble the rear wheel tomorrow after the paint has had time to completely dry

I'm sure it's not going to last long but it's worth a shot.

Installed Wheel Bearings

These went in pretty easily a lot faster then getting the old ones out. I laid the bearings flush and gave it a whack with a rubber malled.  

Bearing 1

Bearing 2
Side note: I noticed I didn't have the bearing in far enough after
I took this picture. Make sure your bearing is pressed in far enough.


Don't forget the spacer between the bearings 

Rebuilding Idle Sprocket

I rebuilt my idle sprocket last night, it went pretty well. I cleaned the bearings, sprocket, and the gear stopper thing. I'm not sure what they are called but it's the little pieces that stops the sprocket from moving backwards. 

bearings, springs, and gear stoppers soaking in carb cleaner

Back side of Idle Sprocket with clean bearings packed in new grease

Once all the bearings are greased up it should be pretty easy to flip the
sprocket over  with out losing any bearings

I'm not sure what these are called but they seem to hold down the
clips that stop the sprocket from moving backwards and the screw cap.

Installing the clip things I was just referring to

and now the 3 ring covers

Installing the clean bearings and grease on the front side over the sprocket

All the bearings installed

Adding grease to the screw cap

After that I screwed the cap on (counter clock wise) and tapped it tight then spun it around a couple dozen times and wiped all the excess grease that seeped out. 

Engine Bearings Version 2.0

If you recall I attempted to install my crank bearings a couple weeks ago with little success. Every time I started cranking the bearing down it would start to get a little crooked and get stuck. Now with a second pair of hands and a handy Emeralds Peanuts container they went on with no problem.

A preview of our rig

Bill approving our setup after 

success of  the first bearing.

Image of  both bearings sitting nicely on the crank

Snap ring install

Both bearings and seals and clutch bushing

 installed. that went really well. 

Next I'm going to clean the clutch bell and probably replace the springs and continue the engine build

Rear Wheel Bearings

WARNING! 

DO NOT SANDBLAST & POWDER COAT YOUR WHEEL WITH THE BEARINGS  INSTALLED

Now that I got that warning out of the way. let me show you some pictures of what happens when you don't listen to my warning. 

I spent a good couple hours trying to bang out these bearings and  I had to finally call in a friend (Thanks Bill) to help me hit it a bit harder. 

This is the bearing still stuck in the wheel. 

If you look closely you can see my stuck punch    

This is what my bearing looked like after I got it out

Here are the two little bastards 

that gave me so much crap

A picture of Bill trying to figure out why they put  plastic/rubber  pieces  on the end of the  bearing spacer. 

Here is the piece i was referring to,  I kinda chipped the right side of  the spacer. I'm not sure if the other side had the rubber plastic caps. I'm going to figure that out today. 

The wheel is ready to be cleaned 

and prepped for the new bearings.

Oh yea, this is a picture of my punch that was stuck in the bearing. I now know why I couldn't pull out the punch. I'm pretty sure it was straight when I put it in there. 

Reassembling Front Wheel

Well I got the front wheel reassembled, I think i need to do some fine tuning on the bearing pressure.

I had to go to Auto Zone and buy a cheap wrench to grind down to make my
own tool to tighten the set nut on the wheel.  This is a much cheaper alternative to
buying a special wrench.

Cleaned my front wheel bearings and races

Well I finally got back to the front wheel. I cleaned out the bearing races with a q-tip and some carburetor and below is a picture of my bearings soaking is some carburetor cleaner in my blaster cap (one more use for blaster http://www.pbblaster.com/).  

Bearings Soaking In Carburetor Cleaner

Before

After

Before

After

Before

After

Removing Front Wheel Bearings

Last night I removed the brake assembly and the bearings, it was a bit tough. I'm going to clean them today and go pick up some new grease to pack them with. Thanx to my wife i didn't loose any bearings.

It looks like i might need a special tool to get the rear wheel bearings out. I'll do some research today and hopefully get those out tonight.

Failed attempt at installing new bearings

Well i'm using the freeze and heat method.
Here is my crank getting nice and cold

Here are my bearings cooking.
I don't think I got them hot enough
I had them in the oven for 10 mins at 200 including preheating. so really they were only in there for around 8 mins at 200 degrees

This is as far as i got :(
not really a success

So i went out and bought a bearing puller and a clutch puller while i was out.
I found out from the moped army that there is a way to press the bearings on with the puller so that is what i'm going to try next time. I think i'm going to take a break from these bearings and try my hand at the wheel bearings :).