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Author Topic: Oil Pump Dowel Pin CB550  (Read 1046 times)

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Offline Zora

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Oil Pump Dowel Pin CB550
« on: August 13, 2013, 11:15:30 AM »
Does anyone know where to find a replacement dowel pin that goes inside the oil pump? My oil pump is missing one and it is leaking oil everywhere. I've also seen them called an o-ring collar. The oil pump should have two of them and they add support to each of the small o-rings. The dowel pin is in the lower right of the attached picture.

Thanks.

Steve
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'77 CB550F - Finally on the road...
'78 CB550K - not running yet...
'06 YZ450F
'01 KLX300

Offline bryanj

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Re: Oil Pump Dowel Pin CB550
« Reply #1 on: August 13, 2013, 01:57:08 PM »
Have you tried looking up the part number and seeing if Honda still sell it?
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Zora

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Re: Oil Pump Dowel Pin CB550
« Reply #2 on: August 13, 2013, 05:34:11 PM »
The dowel pin is not available from Honda anymore. I checked with one of the local junkyards, they want to sell me the whole pump for $60...
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'77 CB550F - Finally on the road...
'78 CB550K - not running yet...
'06 YZ450F
'01 KLX300

Offline reddyvv

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Re: Oil Pump Dowel Pin CB550
« Reply #3 on: August 13, 2013, 07:04:17 PM »
You can get one here - last one left!!

http://www.cmsnl.com/products/collar-o-ring_15155323000/
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Offline xsmooth69x

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Re: Oil Pump Dowel Pin CB550
« Reply #4 on: August 13, 2013, 08:29:15 PM »
whats wrong with it that you need to replace it?

are you sure its not still stuck to the side of the case (engine case not the oil pump case)?

« Last Edit: August 13, 2013, 08:30:54 PM by xsmooth69x »
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1975 CB550 (FINISHED?!?!?)
first motorcycle ever!!! ow and i dont know how to ride it either :D

raw rust rice venti quad shot cafe racing latte project aka my build..... http://forums.sohc4.net/index.php?topic=88853.0

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Offline reddyvv

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Re: Oil Pump Dowel Pin CB550
« Reply #5 on: August 13, 2013, 08:36:29 PM »
Since the oil pump was leaking oil already, sounds like a PO mystery missing optional part situation.  :P
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Offline xsmooth69x

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Re: Oil Pump Dowel Pin CB550
« Reply #6 on: August 13, 2013, 09:39:53 PM »
Quote from: reddyvv on August 13, 2013, 08:36:29 PM
Since the oil pump was leaking oil already, sounds like a PO mystery missing optional part situation.  :P

ya true but i just want to make sure i thought i lost mine to but i found it stuck to my engine case over the hole where it sits against the case instead of coming off with the oil pump housing
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1975 CB550 (FINISHED?!?!?)
first motorcycle ever!!! ow and i dont know how to ride it either :D

raw rust rice venti quad shot cafe racing latte project aka my build..... http://forums.sohc4.net/index.php?topic=88853.0

black and white equation godzilla chalkboard 
1972 cb750 - next in line for some <3

Offline reddyvv

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Re: Oil Pump Dowel Pin CB550
« Reply #7 on: August 13, 2013, 09:53:13 PM »
Good point, easy to overlook.
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Offline Zora

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Re: Oil Pump Dowel Pin CB550
« Reply #8 on: August 14, 2013, 10:47:05 AM »
Thanks for the tip to the CMS site. Unfortunately shipping is $42 so the search continues.

The part was missing when I took the pump off. The PO tried a ton of sealant on top of the o-rings though. He even had sealant on the sprocket cover. I found a brass tube at the local metal supply that might work but the wall thickness isn't as thick as the original. I'll probably give it a shot if I can't find an original part.
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'77 CB550F - Finally on the road...
'78 CB550K - not running yet...
'06 YZ450F
'01 KLX300

Offline bryanj

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Re: Oil Pump Dowel Pin CB550
« Reply #9 on: August 14, 2013, 12:06:06 PM »
Same part for 500/550/650 so you ought to be able to find a used one somewhere, I'm in UK so as you found shipping kills one from here
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline goldarrow

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Re: Oil Pump Dowel Pin CB550
« Reply #10 on: August 14, 2013, 02:48:51 PM »
try local hardware store to see if you can find something of similar or same size in the plumbing department? or put up wanted ad in the classified section?
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Life Is Full Of Challenges - And My Backyard Is Full Of SOHC4's

CB550 K0
CB750 K0, K2, K23 JDM, K45, K5
And the little ones z50r, xr50r, st90


750k5 http://forums.sohc4.net/index.php?topic=114817.0

Offline reddyvv

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Re: Oil Pump Dowel Pin CB550
« Reply #11 on: August 14, 2013, 03:30:20 PM »
$42?!!! That's crazy, no way does it cost that much. I guess they charge a minimum, that sucks.
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