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Author Topic: Oil pump collar.  (Read 573 times)

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Oil pump collar.
« on: September 09, 2026, 09:06:01 AM »
Has anyone got a 500/550 oil pump apart at present?
I need the length of collar, part number 15155-323-000.
I know it's 14mm in diameter and although I have plenty of old pumps here, none of them have their collars.
Ta
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Offline Oddjob

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Re: Oil pump collar.
« Reply #1 on: September 09, 2026, 12:43:41 PM »
Got 2 apart atm. I’ll see if the collars are present and get back to you.
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Offline Oddjob

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Re: Oil pump collar.
« Reply #2 on: September 09, 2026, 01:42:26 PM »
7.5mm Julie. Odd size but was halfway between 7and 8 on my steel ruler so decided for accuracy.
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Oil pump collar.
« Reply #3 on: September 09, 2026, 02:36:29 PM »
Quote from: Oddjob on September 09, 2026, 01:42:26 PM
7.5mm Julie. Odd size but was halfway between 7and 8 on my steel ruler so decided for accuracy.
Thanks Ken, most helpful.
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LINK TO MY EBAY PAGE. As many of you know already, I give discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new
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