JimEB Posted November 15, 2017 Share Posted November 15, 2017 Hey all,Can anyone please confirm the internal diameter and cross-section of the o-rings used in the injectors and throttle bodies?I've seen the following:4.47mm ID / 1.78mm c/s17.12mm ID / 2.62mm c/sThanks! 🙂 Quote Link to comment Share on other sites More sharing options...
rlubikey Posted November 15, 2017 Share Posted November 15, 2017 Hi JimEB. For the O-Rings in the injectors, I measured the ones supplied by a well respected vendor as 4.5x1.6mm, so I would say your first size is indeed correct. An article on changing the O-rings in the TR Register comic pointed out that new rings should be Viton to resist modern fuel and suggested using an oversized c/s of 2mm. Knowing that Viton takes a set - more so than some other materials - I tried 4.5x2mm and can confirm that they j- j- j- just about fit. I used Silicone grease to prevent damage during assembly.Cheers, Richard Quote Link to comment Share on other sites More sharing options...
piman Posted November 15, 2017 Share Posted November 15, 2017 Hello Jim,is there a confusion as to which 'O' rings you are talking about, the body 'O' rings are likely to be ths second size, and the first the internal 'O'rings?Alec Quote Link to comment Share on other sites More sharing options...
JimEB Posted November 16, 2017 Author Share Posted November 16, 2017 Thanks Richard 🙂Alec - yes, I'm referring to the ones in the injector AND the throttle body 😉 Quote Link to comment Share on other sites More sharing options...
mpbarrett Posted November 17, 2017 Share Posted November 17, 2017 I recently sold my spare ones on Ebay. Here is the details and the suppliers namecheersmike Quote Link to comment Share on other sites More sharing options...
JimEB Posted November 17, 2017 Author Share Posted November 17, 2017 Hi Mike,I saw these on eBay and grabbed the spec - missed out in the auction though 🙂Thanks! Quote Link to comment Share on other sites More sharing options...
mpbarrett Posted November 17, 2017 Share Posted November 17, 2017 I was surprised how easily it to sell TR6 bits and get good prices all helping to fund work on my Herald. I have a nice set of metering unit spanners selling at the moment!cheersmike Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted November 17, 2017 Share Posted November 17, 2017 Polymax is another excellent supplier of O-ringshttps://www.polymax.co.uk/o-rings/ (suggest Viton material)Nick Quote Link to comment Share on other sites More sharing options...
JimEB Posted November 23, 2017 Author Share Posted November 23, 2017 Thanks Nick 🙂 Quote Link to comment Share on other sites More sharing options...
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