Rieju & GasGas Legacy Riders Club Forum  

Go Back   Rieju & GasGas Legacy Riders Club Forum > GasGas Enduro Technical Forums > Enduro Engine - 2 stroke

Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


Reply
 
Thread Tools Display Modes
  #1  
Old 10-11-2019, 01:52 AM
dimtsam dimtsam is offline
Member
 
Join Date: Aug 2014
Posts: 53
Default crankcase leakage?

Hello everyone.
My GasGas was smoking a lot at my last ride so I decided to do a leakage test. When I put air to the intake it holds no pressure at all and if i put my hand to the oil fill, i feel the air coming out from there.
Then i opened the right side of the engine and put some soap water to the crankshaft seal and saw no bubbles.
My mind is going to the crankcase gasket.
Is there anything else to check before I start to split the crankcase?

Thanks a lot


Reply With Quote


  #2  
Old 10-11-2019, 02:59 AM
(F5)'s Avatar
(F5) (F5) is offline
Gold Level Site Supporter
 
Join Date: Jul 2006
Location: Wellington New Zealand
Posts: 2,062
Default

Hmm
I'd want to do an actual leak down test. Your method seems parsimonious at best. No offense but. . .

Are you losing gear oil?

Pull your muffler apart. Repackaging it and burn out the perforated core. The carbon and goop there can look like an Amazon fire with assistance from BP..
__________________
'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
Reply With Quote
  #3  
Old 10-11-2019, 05:04 AM
dimtsam dimtsam is offline
Member
 
Join Date: Aug 2014
Posts: 53
Default

Yes i think gear oil is missing.
Reply With Quote
  #4  
Old 10-11-2019, 02:38 PM
(F5)'s Avatar
(F5) (F5) is offline
Gold Level Site Supporter
 
Join Date: Jul 2006
Location: Wellington New Zealand
Posts: 2,062
Default

That's enough to do so. Real easy to separate, at least my 07 has the rollers so no puller needed.
__________________
'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
Reply With Quote
  #5  
Old 10-13-2019, 03:58 PM
Zman's Avatar
Zman Zman is offline
Platinum Level Site Supporter
 
Join Date: Apr 2010
Location: Burbs of Chicago
Posts: 1,818
Default

1. Do you have much up and down play in the crank bearing on that side? If the crank bearings are worn and loose the deflection from running may cause the seal to leak. Is the bottom end original from 2007?
2. Check the case bolts on the ignition side to see if any are loose.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Coolant in crankcase after rebuild Jacob 'Berg Enduro Engine - 2 stroke 27 03-06-2016 05:34 PM
coolant leakage john r b Enduro Engine - 2 stroke 14 12-06-2013 11:41 AM
Coolant in crankcase = no fun stainlesscycle Enduro Engine - 2 stroke 35 02-02-2012 09:59 AM
Fuel Cap Leakage Muzungu Enduro Chassis & Body 1 05-29-2011 07:14 PM




All times are GMT -5. The time now is 09:00 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright 2009 - GasGasRider.org