ninjette.org

Go Back   ninjette.org > 1986 - 2007 Ninja 250R > 1986 - 2007 Ninja 250R Tech Talk

Reply
 
Thread Tools
Old January 28th, 2017, 05:13 PM   #1
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Coolant drip from the valve cover gasket?

My coolant froze solid a few weeks back (no antifreeze in the coolant - thanks Red Line ) ... Imagine that?! I opened the radiator cap and there was solid snow inside! All hoses were rock hard as well. Anyway, the largest victim was the radiator. I swapped it out and there bike fired ok, runs ok, but there is coolant seeping from the gasket I suppose? Is the gasket all I need or am I royally f***ed?

Thanks.
Mless5 is offline   Reply With Quote




Old January 28th, 2017, 05:22 PM   #2
mgentz
Board Member
 
Name: ...
Location: WI
Join Date: Dec 2011

Motorcycle(s): 250R (street), 250R (dirt)

Posts: A lot.
depending on where you see the leak, you could be ok. If it is in the rear, it is more than likely from the 90 degree hose coming out of the head.
mgentz is offline   Reply With Quote


Old January 28th, 2017, 05:31 PM   #3
dcj13
Participant
 
dcj13's Avatar
 
Name: Dave
Location: South of Seattle
Join Date: Oct 2012

Motorcycle(s): '94 K75 std

Posts: Too much.
MOTM - Aug '15
If you're lucky,

Try replacing that o-ring (less than a buck for a suitable generic one from the local auto parts store) and snugging up that hose clamp. Also say a prayer to the engine gods.

Worst case, the block or head is cracked, in which case you are in trouble.

No need at this point for an antifreeze tutorial...
dcj13 is offline   Reply With Quote


Old January 28th, 2017, 05:32 PM   #4
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
It's from the front left corner, looks to be from the gasket.
Mless5 is offline   Reply With Quote


Old January 28th, 2017, 06:22 PM   #5
Motofool
Daily Ninjette rider
 
Motofool's Avatar
 
Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
Does the oil look milky?
__________________________________________________
Motofool
.................................Never ride faster than your guardian angel can fly
"Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí
Motofool is offline   Reply With Quote


Old January 28th, 2017, 06:26 PM   #6
mgentz
Board Member
 
Name: ...
Location: WI
Join Date: Dec 2011

Motorcycle(s): 250R (street), 250R (dirt)

Posts: A lot.
Quote:
Originally Posted by Mless5 View Post
It's from the front left corner, looks to be from the gasket.
still COULD be ok, since leaking coolant from the rear may follow the gasket around and gravity would pull it to the front....but just like when I try pilates....I'm stretching here.

pull the cover and take a look. best thing to do at this time.
mgentz is offline   Reply With Quote


Old January 29th, 2017, 03:36 PM   #7
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Quote:
Originally Posted by Motofool View Post
Does the oil look milky?
Tough to tell, while it doesn't appear to be I suppose I should drain the oil into clean container to be able to tell accurately.

Quote:
Originally Posted by mgentz View Post
still COULD be ok, since leaking coolant from the rear may follow the gasket around and gravity would pull it to the front....but just like when I try pilates....I'm stretching here.

pull the cover and take a look. best thing to do at this time.
I've never worked on motorcycle engines, what would I be looking for besides damaged gasket? Though my gut feeling tell me that's as bad as it could get in this situation?
Mless5 is offline   Reply With Quote


Old January 29th, 2017, 03:42 PM   #8
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
You'd be able to tell if the oil is milky without putting it in another container. It's really obvious when it happens.

When you take the cover off, you should look for anything unusual, like a crack, or other evidence of where the coolant is coming from.
Triple Jim is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old January 29th, 2017, 05:28 PM   #9
dcj13
Participant
 
dcj13's Avatar
 
Name: Dave
Location: South of Seattle
Join Date: Oct 2012

Motorcycle(s): '94 K75 std

Posts: Too much.
MOTM - Aug '15
How does the oil look in the sight glass?
dcj13 is offline   Reply With Quote


Old January 29th, 2017, 06:02 PM   #10
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Quote:
Originally Posted by dcj13 View Post
How does the oil look in the sight glass?
It doesn't look abnormal to my un-trained eye. Coolant does NOT have oily look. I guess I'll take the cover off and see what's up.
Mless5 is offline   Reply With Quote


Old January 29th, 2017, 10:25 PM   #11
dcj13
Participant
 
dcj13's Avatar
 
Name: Dave
Location: South of Seattle
Join Date: Oct 2012

Motorcycle(s): '94 K75 std

Posts: Too much.
MOTM - Aug '15
Good if the oil appears normal. Coolant infused oil looks similar to a chocolate milkshake.
dcj13 is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old February 1st, 2017, 08:29 AM   #12
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Seems like we have some good news here. I pulled the cover last night and there is absolutely no sign of coolant in the oil. There was coolant on the back of the cover (towards the battery), but I am 99% sure that it was coming from the coolant pipe that is in the back of the cover and it was making its way forward due to block being tilted. When I wiggle the pipe, I could clearly see a wet spot there. Too bad Partzilla takes forever to ship! Oh well, I may as well do a valve adjustment while I am there, sitting at 13xxx miles now, I am not sure if it ever was done.

Thanks to all who chimed in - I greatly appreciate it!
Mless5 is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old February 1st, 2017, 10:37 AM   #13
taz
????????????????
 
taz's Avatar
 
Name: T
Location: no where
Join Date: Feb 2016

Motorcycle(s): 2007 ninja 250, 14 ninja 300, 09 1125CR

Posts: A lot.
MOTM - May '17
oh gosh, partszillla you might be waiting tell next year there normally slower at shipping than motomummy (which clearly does have a mummy working in the shipping department).
taz is offline   Reply With Quote


Old February 1st, 2017, 11:04 AM   #14
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Partzilla lists a lot of stuff they don't stock, so when you order it, they have to place an order with their wholesaler, see if it's available, then maybe ship it if it is. Sometimes you get lucky with them though. It may be best to verify stock with their customer service department before actually placing an order.
Triple Jim is offline   Reply With Quote


Old February 26th, 2017, 12:21 PM   #15
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Good: tackled the O ring (was totally flat), did the valve adjustment while there (gaps were too tight), replacing valve cover gasket & spark plugs. Decided to change oil and filter while there and this is where BAD starts: oil looked funny, few milky/mayo spots . Might be some dropping from the time I was working on the O ring, but could be head gasket time? Oil window went white-ish. Any 100% way to diagnose it before I commit?

Thanks.
Mless5 is offline   Reply With Quote


Old February 26th, 2017, 12:32 PM   #16
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Changing the oil and running it for a while would tell if coolant is still getting in. I'm not familiar enough with the particular leak you had to know if it could have released coolant into the oil. If so, and you fixed that leak, you could be OK now.
Triple Jim is offline   Reply With Quote


Old February 26th, 2017, 01:31 PM   #17
steiny
ninjette.org member
 
steiny's Avatar
 
Name: Brad
Location: Cincy
Join Date: Feb 2017

Motorcycle(s): Zrx1100,ZRX1200, C14, CRF100's,KLX400

Posts: 49
don't worry about that green fluid ..... it's just Kawasaki blood
Attached Images
File Type: jpg kawasakigreen blood.jpg (16.0 KB, 1 views)
steiny is offline   Reply With Quote


Old February 26th, 2017, 06:13 PM   #18
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
^ I kind of wish it was green.

Things aren't looking good. Oil level window filled up with milky stuff after a few laps around the block. Head gasket time? Any good DIYs out there?

Thanks.
Mless5 is offline   Reply With Quote


Old February 26th, 2017, 06:47 PM   #19
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Central North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Did you get the engine good and hot? If there is some residual moisture in the oil, it won't be gone until you get the engine fully hot for a while.

I'm not trying to get you to run the engine excessively if you really think coolant is still getting in the oil!
Triple Jim is offline   Reply With Quote


Old February 26th, 2017, 06:55 PM   #20
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Actually I did not. It is impossible to get it hot now: it went over the first mark from cold while sitting, but dropped back closer to C once I got rolling - just too cold to ride for prolonged periods. It runs fine though, so I am still hopeful I guess?
Mless5 is offline   Reply With Quote


Old February 26th, 2017, 07:04 PM   #21
dcj13
Participant
 
dcj13's Avatar
 
Name: Dave
Location: South of Seattle
Join Date: Oct 2012

Motorcycle(s): '94 K75 std

Posts: Too much.
MOTM - Aug '15
Change the oil.
Say a prayer.
Start it up, take it for a ride, get it nice and warmed up.
Check the oil for chocolate milk.

If the oil is clean, you're ok.

If chocolate milk, best outcome is a bad head gasket.
Otherwise, it's a cracked head or cracked block.
dcj13 is offline   Reply With Quote


Old February 26th, 2017, 07:06 PM   #22
Motofool
Daily Ninjette rider
 
Motofool's Avatar
 
Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
Cool

Quote:
Originally Posted by Mless5 View Post
Actually I did not. It is impossible to get it hot now: it went over the first mark from cold while sitting, but dropped back closer to C once I got rolling - just too cold to ride for prolonged periods. It runs fine though, so I am still hopeful I guess?
Water is the only substance that increases its volume when gets solidified.
The damage due to expansion, in form of a crack, could be anywhere in the cooling system where metal is in contact with coolant/ice.

Soft parts like hoses, gaskets and seals can support that expansion with less damage.
Hence, the leak is not necessarily in the gasket between cylinders and head.

Detecting the possible area of leak in order to decide what to do is going to be difficult.
There are ways to pressurize the system without risking damaging the main bearings due to oil contamination.
Have you noticed any leak coming from the body of the coolant pump?
__________________________________________________
Motofool
.................................Never ride faster than your guardian angel can fly
"Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí
Motofool is offline   Reply With Quote


Old February 26th, 2017, 07:28 PM   #23
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Thanks.

No, I don't recall seeing any leaks other than that run from the O ring of the pipe where it enters the head in the back.

Quote:
Originally Posted by Motofool View Post
Water is the only substance that increases its volume when gets solidified.
The damage due to expansion, in form of a crack, could be anywhere in the cooling system where metal is in contact with coolant/ice.

Soft parts like hoses, gaskets and seals can support that expansion with less damage.
Hence, the leak is not necessarily in the gasket between cylinders and head.

Detecting the possible area of leak in order to decide what to do is going to be difficult.
There are ways to pressurize the system without risking damaging the main bearings due to oil contamination.
Have you noticed any leak coming from the body of the coolant pump?
Mless5 is offline   Reply With Quote


Old February 28th, 2017, 07:16 PM   #24
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Update: took the bike out for a good 1/2 ride, let the bike sit and idle for ~5 minutes after I came back, temp started to rise, but didn't get past 12 o'clock. Shut it off, and drained oil + took filter out into a clean pan: no signs of coolant . Decided to pour old oil into a plastic bottle and let it sit overnight to see if there is any separation going on. Filled with clean oil and filter, took the bike for a few circles around our block. Things look promising thus far, keeping my fingers crossed!
Mless5 is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old February 28th, 2017, 07:20 PM   #25
Motofool
Daily Ninjette rider
 
Motofool's Avatar
 
Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
Cool

Quote:
Originally Posted by Mless5 View Post
.........Shut it off, and drained oil + took filter out into a clean pan: no signs of coolant ........
__________________________________________________
Motofool
.................................Never ride faster than your guardian angel can fly
"Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí
Motofool is offline   Reply With Quote


Old February 28th, 2017, 10:29 PM   #26
dcj13
Participant
 
dcj13's Avatar
 
Name: Dave
Location: South of Seattle
Join Date: Oct 2012

Motorcycle(s): '94 K75 std

Posts: Too much.
MOTM - Aug '15
Sounds like your lucky day!
dcj13 is offline   Reply With Quote


Old March 1st, 2017, 11:06 AM   #27
Mless5
ninjette.org member
 
Name: Igor
Location: Salem, MA
Join Date: Feb 2016

Motorcycle(s): '04 Ninja 250

Posts: 51
Keeping my fingers crossed! Big thanks for the support of this community
Mless5 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Head Gasket or Coolant Pipe Leak VaFish 1986 - 2007 Ninja 250R Tech Talk 14 June 22nd, 2017 03:04 AM
Gasket Thickness Valve Clearance HoneyBadgerRy 1986 - 2007 Ninja 250R Tech Talk 4 October 19th, 2015 06:16 PM
valve cover gasket drewsley 1986 - 2007 Ninja 250R Tech Talk 8 August 21st, 2014 04:59 PM
Changed coolant - drip from left exhaust gp55445 1986 - 2007 Ninja 250R Tech Talk 7 September 15th, 2013 05:03 PM
New sprocket installed - alignment? Coolant drip? tsdexter 2008 - 2012 Ninja 250R Tech Talk 3 July 20th, 2013 02:08 PM


Thread Tools

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

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 07:25 AM.


remote server monitor
Powered by vBulletin®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are © Copyright 2021 ninjette.org, All rights reserved.