Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: Liam on November 23, 2020, 09:06:25 PM

Title: Oil line crush washers
Post by: Liam on November 23, 2020, 09:06:25 PM: Hi... Would anyone know the size of the two aluminium crush washers sealing the oil lines to the oil tank. They're not noted as a part in the parts catalogue so looking to see if I can source elsewhere.
Bike is a CB750f (1975).
Cheers
Title: Re: Oil line crush washers
Post by: Trigger on November 23, 2020, 11:55:36 PM: You can get a upgraded kit from Yamiya that come with alloy washers and rubber seals ;) I may have a kit in stock if you need one.
Title: Re: Oil line crush washers
Post by: gtmdriver on November 24, 2020, 07:45:05 AM: Dowty washers are aluminium crush washers with a built in O ring. You can pick them up on eBay. You buy them by ID. Just measure the bolt size.
Title: Re: Oil line crush washers
Post by: Trigger on November 24, 2020, 08:38:16 AM: Quote from: gtmdriver on November 24, 2020, 07:45:05 AM
Dowty washers are aluminium crush washers with a built in O ring. You can pick them up on eBay. You buy them by ID. Just measure the bolt size.

The Yamiya upgraded type are not dowty washers :o They have a separate rubber seal ;)
I have tried dowty washers for this job and they are too thin to do the job .
Title: Re: Oil line crush washers
Post by: UK Pete on November 24, 2020, 10:06:06 PM: Can old ones be reused

Sent from my SM-G950F using Tapatalk
Title: Re: Oil line crush washers
Post by: Spitfire on November 25, 2020, 10:25:52 AM: When I restored my F1 I was surprised to find one in one of the lines as it was not shown on the parts book so I put it back in when I had finished the job, that was in 2007 and I have not had a problem with it.

Cheers

Dennis
Title: Re: Oil line crush washers
Post by: philward on November 25, 2020, 11:03:16 AM: Same with me on 2 of the 3 750's I've built in last 6 years (that is I've re-used existing seals) - my K2 has re-used seals and OK since 2015
Title: Re: Oil line crush washers
Post by: Trigger on November 25, 2020, 01:20:44 PM: It depends on if, they are damaged or over tightened. I always fit new ones as, it is a mess if they start leaking ;)
Title: Re: Oil line crush washers
Post by: Liam on December 01, 2020, 08:26:32 PM: http://www.yamiya750.com/index.php?main_page=product_info&cPath=21_66&products_id=1974

£3.50 for the washers... and of course £20.00 for postage...
Title: Re: Oil line crush washers
Post by: Trigger on December 02, 2020, 02:52:45 PM: Quote from: Liam on December 01, 2020, 08:26:32 PM
http://www.yamiya750.com/index.php?main_page=product_info&cPath=21_66&products_id=1974

£3.50 for the washers... and of course £20.00 for postage...

Plus VAT and custom clearance charges :o As i said before, i have a few sets in stock if you need one ;)