Weird noise from crankcase
- Scirocco
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Re: Weird noise from crankcase
08 Sep 2018 15:01 - 08 Sep 2018 15:04
The scoring marks on the rotor in/out side and on the stator coils are a sign of loose dirt particals under the stator cover.
The dirt particals fall into the small gap between the Stator and rotor Segments when you filp the bike over.
I have seen no real gasket or dowl pins in the engine case or stator cover.
The dowl pins are nessesary to centered the Location of the startor cover to the engine case and rotor body. Screws only have a little bit of Play and do not the centering job !!!
In other words the flip over do a little movement to the cover that let the dirt Sounds like you hear.
The dirt particals fall into the small gap between the Stator and rotor Segments when you filp the bike over.
I have seen no real gasket or dowl pins in the engine case or stator cover.
The dowl pins are nessesary to centered the Location of the startor cover to the engine case and rotor body. Screws only have a little bit of Play and do not the centering job !!!
In other words the flip over do a little movement to the cover that let the dirt Sounds like you hear.
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 08 Sep 2018 15:04 by Scirocco.
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- old_kaw
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Re: Weird noise from crankcase
08 Sep 2018 15:09 - 08 Sep 2018 21:30Scirocco wrote: The dowl pins are nessesary to centered the Location of the startor cover to the engine case and rotor body. Screws only have a little bit of Play and do not the centering job !!! In other words the flip over do a little movement to the cover that let the dirt Sounds like you hear.
I did not see any dowel pins in the pic either. Without them, the stator can become off-center, and it has definitely been scraping on the rotor. The alignment pins were mentioned in the first few posts.
These can be had a lot cheaper than 3 bucks each, but this is what is not pictured above that EVERYONE is referring to, and is the root cause of your mystery noise.
www.ebay.com/i/382536421989?chn=ps
1981 Kawasaki Kz1000K1
Located in the Saint Louis, Missouri Area.
Located in the Saint Louis, Missouri Area.
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Last edit: 08 Sep 2018 21:30 by old_kaw.
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- loudhvx
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Re: Weird noise from crankcase
08 Sep 2018 15:31 - 08 Sep 2018 15:32
A good way to clean metal filings off of a magnet is to use masking tape. It will pull the particles right off.
Like old_kaw said, make sure there are two dowel pins to locate the cover correctly.
Like old_kaw said, make sure there are two dowel pins to locate the cover correctly.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Last edit: 08 Sep 2018 15:32 by loudhvx.
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- SWest
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Re: Weird noise from crankcase
08 Sep 2018 15:39
I did see the one larger hole where a dowel would fit but the pics of the cover aren't large enough to tell if they were in it.
Steve
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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- Calvin9819
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Re: Weird noise from crankcase
08 Sep 2018 16:56 - 08 Sep 2018 16:58
Yes the dowel pins are missing, but the rotor is on there tight. Did the ol’ wiggle test to confirm. when it fell it probably did shift it just enough with all the other crap that’s in there causing the noise. I’ll order some new pins and clean out the cover and rotor and it’ll be good as new! More or less haha. Thank you all for the help.
Last edit: 08 Sep 2018 16:58 by Calvin9819.
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Re: Weird noise from crankcase
08 Sep 2018 16:57 - 08 Sep 2018 21:34SWest wrote: I did see the one larger hole where a dowel would fit but the pics of the cover aren't large enough to tell if they were in it.
Steve
Yep, I could almost make out the dowel pin holes, partially filled with clear RTV, yet visible.
Move the camera away from the object and get a picture of the entire cover, and the entire mating surface on the engine cases.
The scraping on the inside is because of the missing alignment dowels.
Notice how the bottom of the clip is hooked behind the two casting bump thingies in the bottom of the cover. It will scrape if it is not hooked to the protrusions.
The scraping on the outside of the rotor is most likely this metal clip that is used to hold the stator wires off of the rotor.
1981 Kawasaki Kz1000K1
Located in the Saint Louis, Missouri Area.
Located in the Saint Louis, Missouri Area.
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Last edit: 08 Sep 2018 21:34 by old_kaw.
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Re: Weird noise from crankcase
08 Sep 2018 17:12 - 08 Sep 2018 17:14
And please don´t forget to order a non-liquid gasket for the stator cover...
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 08 Sep 2018 17:14 by Scirocco.
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- Calvin9819
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Re: Weird noise from crankcase
08 Sep 2018 17:29
well theres no dowel pins on the parts diagram at partzilla... possibly just the gasket keeps everything in place?
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Re: Weird noise from crankcase
08 Sep 2018 18:41
No, maybe just unavailable. Try eBay.
Steve
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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- Calvin9819
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Re: Weird noise from crankcase
08 Sep 2018 18:45
I looked and couldn’t find anything. All the parts diagrams I see don’t have any sort of dowels or pins for alignment.
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- old_kaw
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Re: Weird noise from crankcase
08 Sep 2018 19:08 - 08 Sep 2018 21:28Calvin9819 wrote: well theres no dowel pins on the parts diagram at partzilla... possibly just the gasket keeps everything in place?
I googled it and did not see any listed for the stator cover either, yet the top right bolt hole appears to be a alignment pin location in your pics (8mm diameter hole). Of course, knowing how some manufacturers arranged their micro phish layout, it could be located on a completely different page. It shows pins on the sprocket cover, #551 and #92042.
if you clean off the clear RTV sillycone and bolt holes, you will find 2 locations.
1981 Kawasaki Kz1000K1
Located in the Saint Louis, Missouri Area.
Located in the Saint Louis, Missouri Area.
Last edit: 08 Sep 2018 21:28 by old_kaw.
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- loudhvx
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Re: Weird noise from crankcase
08 Sep 2018 19:09 - 08 Sep 2018 19:23Calvin9819 wrote: well theres no dowel pins on the parts diagram at partzilla... possibly just the gasket keeps everything in place?
Nope. Keep looking. You need the dowels or this will keep happening. If I can measure some of mine, you might be able to order generic dowel pins.
The dowel part number is 92042-007.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Attachments:
Last edit: 08 Sep 2018 19:23 by loudhvx.
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