November 5th, 2019, 08:32 PM | #1 |
ninjette.org member
Name: Sergey
Location: Ontario, GTA
Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213
|
Found shavings on the oil screen
Today I was taking the oil screen cover off to check the state of the screen and also upgrade to the 2008 screen cover that comes with a drain plug.
The screen in general was clean but I found some shavings on the edge of the screen. I will take the pic of it tomorrow (did not have the phone with me). They are definitely aluminum - they are white/gray and they are not magnetic. And they look like shavings coming from a thread tap, mostly 1mm in size and some of them do look like pieces of thread. The thing I found out is that one of the previous owners has stripped oil drain plug threads and re-tapped it for bigger size plug M14 with 19mm head instead of M12-17. I suspect they did not remove all the shavings and some of them ended up in the case. What could this potentially cause ? It looks like the screen is fine grained enough to stop the bigger ones. I assume the oil goes to the pump next and then to the filter ? so technically they should not have ended up in the engine's critical parts? The new plug they installed has a magnet and it was totally clean when I unscrewed it. The engine runs well, oil pressure looks good (the bulb turns on instantaneously) I hear no knocks other than clutch basket sometimes (it goes away with slipping the clutch and then I do not hear it - at least now I could not hear it). Both cylinders hold pressure (about 205 and 215 psi). Bike has about 10k , I did not have a chance to ride it for long distances (it is currently not plated) but testing it on the driveway did not show any issues - it pulls well from a stop. Your thoughts on this situation are welcome. Thanks in advance. |
|
November 6th, 2019, 02:17 AM | #2 | |
ninjette.org member
Name: Garry
Location: Bungendore Australia
Join Date: Jan 2019 Motorcycle(s): GPX250 1989 model and 1990 model Posts: 98
|
Quote:
__________________________________________________
Perpetua Culpa Alterna Vagus |
|
|
November 6th, 2019, 06:32 AM | #3 |
Guy Who Enjoys Riding
Name: Jim
Location: North Carolina
Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
|
I assume our 250s have a full-flow oil filter system, but I guess I've never verified that. Assuming so, chips in the sump from a threading tap can't get into the engine's bearings. If they're nasty enough I guess the oil pump may not like them though. Hopefully it's fine and you have plenty of oil pressure.
Those chips are the reason I don't trust the old "grease the tap" method that you hear recommended so often. As 59096 said, it's also not unusual to find a little debris on the screen. Mine had a little the first time I changed the filter. |
|
November 6th, 2019, 06:57 AM | #4 |
ninjette.org member
Name: Sergey
Location: Ontario, GTA
Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213
|
Thank you gentlemen , thats good to hear. At first I freaked out but then looking at them calmed down a bit . I bet the screen has never been taken off before. Most likely some of the crap is there from day one. It takes more time to take the screen cover on ZZR as it also works as a holder for a fairing bracket. Given how mechanically negligent some of the previous owners were I would not expect them to go as far as taking the screen off. We will see how she runs on the road in Spring.
|
|
November 6th, 2019, 07:28 AM | #5 |
Guy Who Enjoys Riding
Name: Jim
Location: North Carolina
Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
|
That comment made me check your location. Sorry you won't be riding until spring, but I guess you have fun things like snowmobiling and ice sailing that I miss out on. A couple winters ago a small cove on the lake here did freeze enough that we dug out our ice skates and a private rink, but that's very rare.
I'd really like to go ice sailing someday before it's too late. |
|
November 7th, 2019, 02:34 PM | #6 | |
ninjette.org member
Name: Sergey
Location: Ontario, GTA
Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213
|
Quote:
Southern Ontario is not very cold though. Its more wet slushy weather. Lake Ontario does not freeze so we need to go a bit North to smaller lakes to do any ice activity. I bought my bike in September to use winter time to fix everything up. That will allow me to save on the insurance as they say the insurance companies charge for a “season”. I will just start new season in Spring. The bike is jot even plated yet. People tend to drop prices lower at the end of the season as well as they do not want to go through a hassle of winterizing and storing a bike they are not going to use. |
|
|
November 12th, 2019, 09:41 AM | #7 | |
ninjette.org member
Name: Brian
Location: Blacksburg
Join Date: Jul 2017 Motorcycle(s): 2003 Ninja 250R Posts: 32
|
Quote:
Unless you're seeing a lot of metal long after the initial break-in period has passed, a little bit of metal is normal (especially if you live in an area where the temperature varies significantly or if you ride through multiple micro-climates reguarly, like in California) |
|
|
November 12th, 2019, 01:16 PM | #8 |
ninjette.org member
Name: Sergey
Location: Ontario, GTA
Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213
|
This is what used to be on the screen, at this point the screen has been cleaned off the garbage and reinstalled with the old gen cover. I did not have proper bolts and the gasket for the new gen cover and decided to change it during my next oil chamge procedure. I will also inspect the screen to check the “delta” hopefully it will be clean.
|
|
November 12th, 2019, 01:21 PM | #9 | |
ninjette.org member
Name: Sergey
Location: Ontario, GTA
Join Date: Oct 2019 Motorcycle(s): Ninja ZZR250 (EX250H) Posts: 213
|
Quote:
|
|
|
November 18th, 2019, 12:40 AM | #10 | |
ninjette.org member
Name: Brian
Location: Blacksburg
Join Date: Jul 2017 Motorcycle(s): 2003 Ninja 250R Posts: 32
|
Quote:
The cylinders/rings are the more likely culprit. I would check it again next season and if you find the same amount of shiny bits, bring it to a professional for a diagnosis. |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Where is the Oil Screen? | ScorpionNinja | 2008 - 2012 Ninja 250R Tech Talk | 14 | August 1st, 2023 10:12 AM |
Some fun stuff found in oil screen | LumaNinja | 1986 - 2007 Ninja 250R Tech Talk | 3 | July 10th, 2018 10:01 AM |
Found gasket when cleaning oil screen! | Jessevelazco | 1986 - 2007 Ninja 250R Tech Talk | 13 | March 11th, 2016 01:03 PM |
Copper shavings in my oil screen | rmorse | 2008 - 2012 Ninja 250R Tech Talk | 19 | September 29th, 2014 09:45 AM |
Metal Shavings in Oil, Bad Cam Chain Tensioner? | manorat | 1986 - 2007 Ninja 250R Tech Talk | 1 | August 7th, 2010 12:21 AM |
|
|