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Post by linx on Sept 23, 2022 9:04:50 GMT 1
Does anyone know what size the o-rings are on the petrol inlet valve seats? 31k. Thanks
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Post by buck1963 on Sept 24, 2022 19:59:20 GMT 1
Dave(muttsnuts) should know,he sent me some slightly larger than standard to try in my 31k carbs
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Post by linx on Oct 11, 2022 18:24:52 GMT 1
6mm x 1.5mm x 9mm. Ordered from Simply Bearings £2 each in vitron
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Post by muttsnuts on Oct 13, 2022 8:55:30 GMT 1
um, don't understand your O ring size, its normally ID x CS (Internal diameter) by (Cross Section size) - you've chose the right material though, viton or nitrile, both will work in this case
The O rings I keep are 7mm ID x 1.2mm CS - that is stock size, then 2 oversize 1.35mm CS and 1.5mm CS - all have a shear strength of 70 or 75
HTH
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Post by linx on Oct 14, 2022 9:12:00 GMT 1
Ah OK. They seem to fit and work OK. Maybe a bit tight. 9mm is the OD. This is how Simply Bearings list them.
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