Author Topic: cb350- removing oil filter from engine  (Read 5749 times)

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Offline mikedialect

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cb350- removing oil filter from engine
« on: October 02, 2007, 04:26:12 PM »
I'm trying to get the oil filter off the engine on my 68 cb350 engine. I bought the tool from Dennis Kirk- which I don't see how you could use as it just turns over and there is no possible way to get leverage. Also- as it states in the manual 'the tab' that needs to be bent back... I can't think of a conceivable way to get that bent back. I've bent the sh&t out of my flathead screwdriver, but no way it would bend that tab back. I'd need to be behind the tab for it to move. So, what I want to know (before I throw more sharp objects in my dining room) is how the hell is this done???


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Offline Raul CB750K1

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Re: cb350- removing oil filter from engine
« Reply #1 on: October 03, 2007, 12:07:41 AM »
To flatten the lockwasher - you need not only a screwdriver but a small hammer, to put it back into place. I bought three or four new washer, and I plan to use only one of the tabs each time, so the same washer is good for four or five uses.

Regarding the way to loosen the nut, I hope my picture speaks for itself. Just make sure you don't exert force on the ends of the clutch basket tabs, but closer to the basket body. If you have a strap -like the ones used to tie bikes on trailers- you can use it also to keep it from spinning. I've used that on an alternator rotor and it worked, as I couldn't think of anything else to keep it from turning.



Offline Bodi

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Re: cb350- removing oil filter from engine
« Reply #2 on: October 07, 2007, 08:46:13 AM »
The tabs are just dead soft steel, I don't know why you are having trouble. They were bent in with what look like beefy needle nose pliers, just use a pin punch or equivalent to bang the bent tabs back down flatish.
Turning the nut just block as shown and use impacts to loosen it. I don't know what tool you have, the Honda one has a tee handle or you can get "sockets" from Snap-On and others.

Offline mikedialect

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Re: cb350- removing oil filter from engine
« Reply #3 on: October 08, 2007, 11:38:58 AM »
I did finally get it off both engines. Bill gave me some keen advice on another site that made it MUCH easier to get it moving.

Raul, Steve (sprint66) gave me a really good tip so you wouldn't have to use that big bar. If you put a penny or a quarter where the gears meet it holds it there quiet nicely. You will destroy the quarter, but it works pretty good!
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Offline Raul CB750K1

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Re: cb350- removing oil filter from engine
« Reply #4 on: October 08, 2007, 12:23:05 PM »
I did finally get it off both engines. Bill gave me some keen advice on another site that made it MUCH easier to get it moving.

Raul, Steve (sprint66) gave me a really good tip so you wouldn't have to use that big bar. If you put a penny or a quarter where the gears meet it holds it there quiet nicely. You will destroy the quarter, but it works pretty good!


I tried with a rag first and it did block the gears, but not enough. The mere thought of putting some metal inside made me shiver, but I really didn't think in soft metal like copper or aluminium. Thanks for the tip.

Offline 754

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Re: cb350- removing oil filter from engine
« Reply #5 on: October 16, 2007, 11:01:21 PM »
I think the factory tool is the same for this nut and 750 clutch nut.. wobder if the nut is the same part #.
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Offline Raul CB750K1

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Re: cb350- removing oil filter from engine
« Reply #6 on: October 17, 2007, 04:55:32 AM »
I think the factory tool is the same for this nut and 750 clutch nut.. wobder if the nut is the same part #.

I have both a 750 and a 350. Checked both parts manual and the nut part number is the same (90231-200-010), hence the tool is the same for both.

Good for me as I already bought the tool for the CB350... ;-)

Offline 754

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Re: cb350- removing oil filter from engine
« Reply #7 on: October 17, 2007, 07:38:17 AM »
Same here, back in the 70,s..didnt want to pay the dealer to clean the filter.

 I am thinking the factory tool may work better as you may get it off by striking the T handle w/o jamming the gears..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Raul CB750K1

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Re: cb350- removing oil filter from engine
« Reply #8 on: October 17, 2007, 08:31:09 AM »
Same here, back in the 70,s..didnt want to pay the dealer to clean the filter.

 I am thinking the factory tool may work better as you may get it off by striking the T handle w/o jamming the gears..

What I have is a tool I bought off ebay, with the four prongs and a 3/4 square hole so it can be used with a ratchet wrench and an extension arm.