Go Back   DIY Go Kart Forum > Other Stuff > More Builds

Notices

Closed Thread
 
Thread Tools Display Modes
  #1  
Old 10-18-2018, 04:40 PM
Desertduler Desertduler is offline
Senior Member
 
Join Date: Mar 2013
Posts: 1,735
Thanks: 469
Thanked 668 Times in 414 Posts
Default 420 Predator Golf Kart Transplant

So I am installing a 420 Predator on a golf kart for one of my young neighbors. The golf kart is a Hyundai electric model that would not move for the previous owner son the young man bought it for $100.00 USD. The input shaft on the differential which was splined had stripped so I removed it from the differential and machined it down and cut a key slot in the shaft. The engine would not fit very well under the seat area so I have mounted it on the rear of the unit. I had to build a spring loaded chain tensioner because of the suspension movement of the rear differential. I still have to install a center support bearing on the jackshaft that I made and that work is in the process. Kind of a fun project for the young man as he is learning a lot and has a interest.
Attached Thumbnails
Golf 1.jpg   Golf 2.jpg  

Golf 3.jpg   Golf 4.jpg  

Golf 5.jpg  
The Following User Says Thank You to Desertduler For This Useful Post:
itsid (10-18-2018)
  #2  
Old 10-18-2018, 08:07 PM
itsid's Avatar
itsid itsid is offline
Moderator
 
Join Date: Jul 2013
Location: Ruhrpott [Germany]
Posts: 10,247
Thanks: 1,396
Thanked 4,312 Times in 3,245 Posts
Default

was the original motor seized?
Or is that kept for another oomphy project?

'sid
__________________
Jokes about german sausage are the wurst.
  #3  
Old 10-19-2018, 12:55 AM
landuse's Avatar
landuse landuse is offline
Moderator
 
Join Date: Nov 2010
Location: Pietermaritzburg, South Africa
Posts: 17,363
Thanks: 2,125
Thanked 3,462 Times in 2,823 Posts
Default

Very nice!
The Following User Says Thank You to landuse For This Useful Post:
Desertduler (10-19-2018)
  #4  
Old 10-19-2018, 07:44 AM
Desertduler Desertduler is offline
Senior Member
 
Join Date: Mar 2013
Posts: 1,735
Thanks: 469
Thanked 668 Times in 414 Posts
Default

Quote:
Originally Posted by itsid View Post
was the original motor seized?
Or is that kept for another oomphy project?

'sid
The motor has a stripped spline drive coupler which is does not separate from the armature. It could be used again with the adaptation of a different drive.
  #5  
Old 10-19-2018, 09:27 AM
itsid's Avatar
itsid itsid is offline
Moderator
 
Join Date: Jul 2013
Location: Ruhrpott [Germany]
Posts: 10,247
Thanks: 1,396
Thanked 4,312 Times in 3,245 Posts
Default

Quote:
Originally Posted by Desertduler View Post
..coupler ..does not separate from the armature...
Ah.. I see,
I was just wondering why you didn't simply make a new coupler on your lathe,
which sounded like the least amount of work to get it going again.
(you had a broach, right?)
The armature is likely too big to mount securely to the lathe.. so yeah.

Anywhoo.. good work.

How did you achieve enough throw for the chain tensioner to compensate for the suspension,
while preventing it from slamming into the reverse running chain?
(short.. is that second pic the tensioner lever? is it truely only that little suspension in these things?)

'sid
__________________
Jokes about german sausage are the wurst.
  #6  
Old 10-19-2018, 09:57 AM
Desertduler Desertduler is offline
Senior Member
 
Join Date: Mar 2013
Posts: 1,735
Thanks: 469
Thanked 668 Times in 414 Posts
Default

Quote:
Originally Posted by itsid View Post
Ah.. I see,
I was just wondering why you didn't simply make a new coupler on your lathe,
which sounded like the least amount of work to get it going again.
(you had a broach, right?)
The armature is likely too big to mount securely to the lathe.. so yeah.

Anywhoo.. good work.

How did you achieve enough throw for the chain tensioner to compensate for the suspension,
while preventing it from slamming into the reverse running chain?
(short.. is that second pic the tensioner lever? is it truely only that little suspension in these things?)

'sid
I mocked up the tensioner arm and put the rear axle through the suspension travel to make sure that the chain did not touch each other while the suspension is bottomed out. I looked before I leaped so to speak.
  #7  
Old 10-21-2018, 08:28 AM
Desertduler Desertduler is offline
Senior Member
 
Join Date: Mar 2013
Posts: 1,735
Thanks: 469
Thanked 668 Times in 414 Posts
Default

I took this thing for a spin yesterday and it goes really well. The young man wants to be able to take this kart off road and with the gearing that I used it will work. I am going to talk him into changing the valve springs as I have disabled the governor. All in all I am impressed with the engine as of now but I will wait and see after this thing is driven by this teenager and his buddies for some time.
The Following User Says Thank You to Desertduler For This Useful Post:
landuse (10-22-2018)
  #8  
Old 10-22-2018, 01:25 AM
landuse's Avatar
landuse landuse is offline
Moderator
 
Join Date: Nov 2010
Location: Pietermaritzburg, South Africa
Posts: 17,363
Thanks: 2,125
Thanked 3,462 Times in 2,823 Posts
Default

Quote:
Originally Posted by Desertduler View Post
I took this thing for a spin yesterday and it goes really well. The young man wants to be able to take this kart off road and with the gearing that I used it will work. I am going to talk him into changing the valve springs as I have disabled the governor. All in all I am impressed with the engine as of now but I will wait and see after this thing is driven by this teenager and his buddies for some time.
And with them being teenagers, it will certainly be pushed to its limits :d
  #9  
Old 10-22-2018, 08:36 AM
Desertduler Desertduler is offline
Senior Member
 
Join Date: Mar 2013
Posts: 1,735
Thanks: 469
Thanked 668 Times in 414 Posts
Default

Quote:
Originally Posted by landuse View Post
And with them being teenagers, it will certainly be pushed to its limits :d
Yes indeed. He was driving it around for a good part of the day yesterday hauling his friends and siblings around flat out as fast as it would go down the road. I told him to mellow it out a bit before he gets hurt or someone else does. When you are young you think that you are invincible and nothing bad is going to happen to you.
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:03 PM.