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Author Topic: Valve Inspection Cap O-Rings  (Read 2095 times)

Offline bucksfizz

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Valve Inspection Cap O-Rings
« on: May 31, 2019, 01:30:18 PM »
Does anyone know the size of the O-rings for the valve inspection caps?
I've tried the search function to no avail.
I prefer to buy decent O-rings in Viton, and have a few in stock, rather than pay silly OEM prices.
Thanks!
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Valve Inspection Cap O-Rings
« Reply #1 on: May 31, 2019, 02:35:48 PM »
We never fit Viton to tappet caps, they are too hard and don't seal well with the alloy as you cant tighten the caps up tight enough. If you decide to go Nitrile, I sell them on my eBay page but PM me if you want more than the 8.
https://m.ebay.co.uk/itm/Honda-CB750-K0-to-K8-F1-F2-SOHC-8-New-Nitrile-O-rings-to-fit-tappet-covers/163701584165?_mwBanner=1&_rdt=1&pageci=1dc752c9-4648-4e9b-8891-5524479ac962
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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

Offline Phil k

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Re: Valve Inspection Cap O-Rings
« Reply #2 on: May 31, 2019, 10:57:15 PM »
I use silicone, it’s softer than viton but better than nitrile for temperature range

Phil


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Offline Trigger

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Re: Valve Inspection Cap O-Rings
« Reply #3 on: June 01, 2019, 09:06:32 AM »
Quote from: Phil k on May 31, 2019, 10:57:15 PM
I use silicone, it’s softer than viton but better than nitrile for temperature range

Phil


Sent from my iPhone using Tapatalk


No need for Viton or Silicone in that area, it doesn't get hot enough to warrant using them  ;)
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