PST 150 BBK Build By rapidjim (Read 3,969 times)

[Bashan]

I used a puller like this to take the kick start gear off:

I guess Alley was talking about something like this:

[dmartin95]

Nov 13, 2014 15:50:22 GMT -6 Alleyoop said:

Guess you guys never ever heard or seen a press or you can go the GHETTO WAY BANG IT OFF AND BANG IT ON.

Alleyoop

No, I haven't. When I read his (RapidJim) post, I couldn't seem to grasp how would you would "press" something "off"....

Normally, when I think of the word press, I picture something like using my arms to press down (apply pressure) on something... The whole pressing action is normally used for smashing something, or putting together,.... But off !?! .... I just couldn't figure out what he was talking about.

But now I understand! Thanks....

However, how on Earth do you use one of those contraptions (the press itself)?

[richardv]

Bashan, the pulley/gear puller explains removing the gear but, how do you install it?

[Alleyoop]

Yea, how would one install it using the gear puller, maybe pulling back on from the oder side the dark side

[rapidjim]

Nov 13, 2014 15:10:57 GMT -6 dmartin95 said:

Nov 13, 2014 14:53:13 GMT -6 Bashan said:

Yeah but how do you remove it and what do you use to press it on Mr. Smarty Pants?

Right, that's what I was wondering.... Is this a tool? A machine? 

Wax on Wax off!!!!!!!

Seems there is still some confusion on how to change the final gear set. I understood what Alley said, but I have done it several times so I can understand how a "novice" might not.

Step one is to remove the counter shaft and reduction gear (which is one piece) and the final drive gear from the transmission section of the motor. See pictures in original post. Not rocket science they simply pull out by hand from the bearings in the case.

As Alley showed, the new gear set does not come with a new reduction gear, just the counter shaft and final gear. Forget the final gear right now. You need to remove the counter shaft from the original reduction gear and install the new counter shaft on your original reduction gear. You can not simply pull the counter shaft of the reduction gear because it is a very tight fit, in other words it is a "Press fit". Trying to use a vise, punch and hammer will damage the gears. This is where the "Press" comes in. A press is a machine that is used to "press" off and "press on" objects like gears, bearings, wheel hubs ect. that are very tight fits without causing damage. Most presses have a hydraulic hand jack that does the work. Most people do not have a press in their tool collection, so it becomes necessary to go to a machine shop or a repair shop that has one to do the work for you. They should not charge more than a few dollars to do this for you.

Once you return from the repair shop you can install your newly pressed counter shaft and reduction gear, along with the new final drive gear in your case.

Still confused? Have a shop do the work for you LOL

[dmartin95]

Nov 15, 2014 8:32:55 GMT -6 rapidjim said:

Nov 13, 2014 15:10:57 GMT -6 dmartin95 said:

Still confused? Have a shop do the work for you LOL

No, I'm not confused anymore. I had just never heard of a press before but now it makes perfect sense on how to use it....

On a side note, my name is Dan, so I can't tell you how many times I've heard "wax on, wax off young Daniel son"... 

[Bashan]

The kick start gear simply presses back on when you reinstall the variator. It acts as a spacer for the variator and must go back on all the way against the stop you see on the crank. I put some anti-seize grease on it so that hopefully it will come off easier next time. But just judiciously use an impact on the variator nut and it will press on. I know, I know, you're not supposed to use an impact. What do you think Jim, ever use an impact on the variator and clutch? Rich

[Alleyoop]

I use an impact on the Variator and Clutch all the time, not a problem. I have a routine I first tighten the nut on with my hand then hit it with 3 1 second short raps with the impact wrench. Start the motor up give it some revs and then put the cover on.

[Bashan]

Do you ever mark the nut so you know where it started? I don't and I do pretty much exactly what you do. I found a pressure on the tank and setting on my gun (the 3/8) that on the third hit the nut stops and it's perfect. The 1/2 impact I only use to take stubborn bolts off. That thing weighs a ton and will take ANYTHING off. I tried everything on an old axle nut once and had to go get a special socket for the 1/2 impact. That thing didn't hit for 2 seconds before that puppy came flying off of there. I'd never use it to put something on. Rich

[rapidjim]

Nov 15, 2014 13:52:09 GMT -6 Bashan said:

The kick start gear simply presses back on when you reinstall the variator. It acts as a spacer for the variator and must go back on all the way against the stop you see on the crank. I put some anti-seize grease on it so that hopefully it will come off easier next time. But just judiciously use an impact on the variator nut and it will press on. I know, I know, you're not supposed to use an impact. What do you think Jim, ever use an impact on the variator and clutch? Rich

I must have missed something here, how did we go from transmission gear changes to kick starter gear and variators?

Oh well, to answer your question, yes I use an impact for many many things, including clutch and variator nuts. I have had the same snap on impact for over 20 years (rebuilt once) when you own and use the same tool day after day it becomes a part of you and you can use it by feel ( so to speak ), I know what setting to set my impact on for what jobs and never change the air pressure going to the gun. I also double check with a torque wrench on critical nuts and bolts. If you are unfamilar with the tool it is easy to break things. My suggestion to those using a new impact or for those that have never used one, for reinstalling nuts, find an old car rim and hub, (available at most junk yards cheap) and practice with the settings and check with a torque wrench to see just how tight the gun is getting the nuts. Using to remove nuts is not as critical.

[Bashan]

Because we were talking about removing and installing gears, I thought removing the variator and clutch would be applicable to working on things in general around the CVT including the tranny gears. But maybe you're correct and the thread is straying.....sorry. Your original post is now in Memorable Posts, thanks for the nice addition. Rich

[rapidjim]

Just a silly question on my part LOL

Just for more info here is another way to get that pesky kick start gear off using a 2 1/4 inch bearing separator.

[crwford]

while working in a machine shop and being a machinist for 38 years I do understand what Jim Posted i can understand a layman's Idea on terms like press and gear pullers,heat treated but for the life of me can't understand why some one would tear in to a motor trying to learn as you go and then say got to be careful need it for tomorrow LOL. I been doing business with Rapid Jim since I got my Ice Bear trikes he is a wealth on information and I learned a great deal from Jim. Jim keep up with your great information and work Crawford East TN

[rapidjim]

Thanks Crawford.

I have been off line for a few days due to a computer crash and trying to get my info off my old drive.