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Author Topic: Rookie oil change misstep  (Read 1265 times)

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Offline 4n2twstr

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Rookie oil change misstep
« on: July 30, 2012, 09:08:45 AM »
So it's the first time changing the oil on my CB750 K7 and of course I didn't pay attention to how the filter setting spring went in.  I have it right against the crankcase at the moment instead of the housing.  Now my question is- can I just fix it quick and not have to drain all the new oil or will all the oil pour out from that area anyway and I end up w/ a huge mess by taking this shortcut?
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Offline MCRider

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Re: Rookie oil change misstep
« Reply #1 on: July 30, 2012, 09:14:19 AM »
As is you'll lose a little oil pulling the filter cover. Put it on the centerstand and put a board under the front wheel you'll lose less. Les than 1/4 quart I'd think. most of the oil is ion the tank, then the sump. There is no direct pathway for this oil to flow to the filter housing unless the engine is running.

Also, have you identified the flat steel washer that the spring seats against? It often sticks to the old filter and gets thrown away. When loading the new filter it goes, spring, washer, filter.
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Offline 4n2twstr

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Re: Rookie oil change misstep
« Reply #2 on: July 30, 2012, 09:30:09 AM »
Great, just the answer I was hoping for, thx MC!  And yeah, I bought a 5pack of washers so I'm good!   8)
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Offline MCRider

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Re: Rookie oil change misstep
« Reply #3 on: July 30, 2012, 09:36:20 AM »
Quote from: 4n2twstr on July 30, 2012, 09:30:09 AM
Great, just the answer I was hoping for, thx MC!  And yeah, I bought a 5pack of washers so I'm good!   8)
You're welcome.

Are we talking about the same washer? This goes on top of the spring, over the cover bolt, before the filter. I wasn't aware they came in 5 packs. They are reusable, never needs replacing unless you lose it.
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1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline 4n2twstr

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Re: Rookie oil change misstep
« Reply #4 on: July 30, 2012, 09:54:48 AM »
Yep, same washer.  I got the 5pack from here - http://www.cb750supply.com/products/4/engine/74/lubrication-filters-o-rings-drain-plugs when I got filter and o-rings, figured they need to be changed as well w/ the o-rings...
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Offline Don R

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Re: Rookie oil change misstep
« Reply #5 on: July 30, 2012, 10:02:10 AM »
Thanks for the link. It isn't often you change one for the first time and find the washer there.
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Offline Duke McDukiedook

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Re: Rookie oil change misstep
« Reply #6 on: July 30, 2012, 10:13:08 AM »
Be sure to put a new crush washer on the drain bolt while you are at it.
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Offline MCRider

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Re: Rookie oil change misstep
« Reply #7 on: July 30, 2012, 10:17:51 AM »
Quote from: 4n2twstr on July 30, 2012, 09:54:48 AM
Yep, same washer.  I got the 5pack from here - http://www.cb750supply.com/products/4/engine/74/lubrication-filters-o-rings-drain-plugs when I got filter and o-rings, figured they need to be changed as well w/ the o-rings...
Yup that's it. Carry On!   :D
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Offline Bailgang

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Re: Rookie oil change misstep
« Reply #8 on: July 30, 2012, 03:56:23 PM »
Quote from: MCRider on July 30, 2012, 09:14:19 AM
As is you'll lose a little oil pulling the filter cover. Put it on the centerstand and put a board under the front wheel you'll lose less. Les than 1/4 quart I'd think. most of the oil is ion the tank, then the sump. There is no direct pathway for this oil to flow to the filter housing unless the engine is running.

Also, have you identified the flat steel washer that the spring seats against? It often sticks to the old filter and gets thrown away. When loading the new filter it goes, spring, washer, filter.

I'm glad I spotted this thread because my 550 never had that washer (PO must've tossed it long ago) so I never realized a washer was supposed to go there though it did seem odd that there wasn't a washer there.
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71 cb350 twin
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