Go Back   DIY Go Kart Forum > Building Plans And Advice > Engines & Clutches

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 09-19-2019, 03:07 AM
RyanCR RyanCR is offline
Junior Member
 
Join Date: Sep 2019
Location: South Africa
Posts: 7
Thanks: 5
Thanked 0 Times in 0 Posts
Default GX200 Questions

Hi guys

I am trying to remove the flywheel on a GX200 but its pretty stuck on there.

I have tried pushing it with a pry bar against the crankcase (very carefully) and then hitting the crankshaft end with a hammer but its not coming off, damaged the nut though

Any other advice?

Thanks!!
Reply With Quote
  #2  
Old 09-19-2019, 04:11 AM
RyanCR RyanCR is offline
Junior Member
 
Join Date: Sep 2019
Location: South Africa
Posts: 7
Thanks: 5
Thanked 0 Times in 0 Posts
Default GX200 Rocker arms

Hi again

Sorry for all the questions, I 'm sure there will be a few more as I am new to all this

Only after I removed the rocker arms from my engine I realized that they are a different size? Tried to google but couldn't find much info.

Is this normal and am I correct in saying the smaller one sits on the inlet valve?

Thanks!
Reply With Quote
  #3  
Old 09-19-2019, 05:13 AM
Budget GoKart's Avatar
Budget GoKart Budget GoKart is offline
Aka a kenbar
 
Join Date: Dec 2018
Location: indiana
Posts: 910
Thanks: 14
Thanked 90 Times in 84 Posts
Default

Sid should combine these into a thread called gx200 questions just use one thread for questions instead of all of these
__________________
Certified Yerfdog 3202-3203 expert.
Reply With Quote
The Following User Says Thank You to Budget GoKart For This Useful Post:
RyanCR (09-19-2019)
  #4  
Old 09-19-2019, 08:50 PM
itsid's Avatar
itsid itsid is offline
Moderator
 
Join Date: Jul 2013
Location: Ruhrpott [Germany]
Posts: 10,114
Thanks: 1,384
Thanked 4,267 Times in 3,204 Posts
Default

yeah.. one 'project' one thread
makes it easier for us to give you a correct answer

Let me know what thread title you would like this newly merged thread to carry.

'sid

Budget, co-moderation is usually unnecessary
__________________
Jokes about german sausage are the wurst.
Reply With Quote
  #5  
Old 09-19-2019, 11:48 PM
RyanCR RyanCR is offline
Junior Member
 
Join Date: Sep 2019
Location: South Africa
Posts: 7
Thanks: 5
Thanked 0 Times in 0 Posts
Default

Thanks guys and sorry about that lol!

You can just use "GX200 Questions" as the title Sid.

Thank you!!
Reply With Quote
  #6  
Old 09-20-2019, 06:50 AM
itsid's Avatar
itsid itsid is offline
Moderator
 
Join Date: Jul 2013
Location: Ruhrpott [Germany]
Posts: 10,114
Thanks: 1,384
Thanked 4,267 Times in 3,204 Posts
Default

perfect.. Paul took care of that already

Now, back to the questions..

Never heard of a GX200 having different rocker arms lengths
so I checked with the GX200 parts manual I have (2004) and
both rocker arms on the GX200 have the same part number (14431-ZE1-000)
the valves and retainers are different but everything else on the valve train is identical IN to EX.

And to be sure I checked with a 2013 Lifan 168F manual (true clone)
and got the same result... valves and retainers are different, rest is not.

Maybe someone swapped one over from a different engine for some odd reason?

maybe a 'tuning' ratio rocker for the intake.. but I can't tell;
maybe a pic would help *shrugs*

flywheels if properly lapped to the crankshaft can get especially stubborn to remove if one forgets to add a tiny bit of copper grease and the mated surfaces can cold weld

A flywheel puller is the correct answer .. but one that's tough to give, since no man ever had one really
Second best imho is
persuation by rubber mallet and infiltration by some good quality penetration oil.
a gentle amount of heat for the flywheel by means of licking blow torch flame perhaps to speed things up.

But otherwise it's indeed oiling patience tapping, in repetetive patterns if you want to avoid brute force.

If you don't have a rubber mallet, put a pice of wood against the nut before you hit it with a hammer.
And make sure the nut is released enough to fully cover the initial threads on the shaft, you do not want to mushroom the threaded end

Any chance you have a welder laying around?
Then you might be able to make yourself a makeshift flywheel puller...

'sid
__________________
Jokes about german sausage are the wurst.
Reply With Quote
Reply

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 10:47 PM.