RogerH Posted January 24, 2019 Report Share Posted January 24, 2019 Hi Folks, here is a puzzler. A friend of mine is trying to stop his TR4A GB selector rods leaking. There are three rods and they each have an 'O' ring at the back end - supposedly to stop oil dribbling out. - ho ho ho!!! He has found that his 3rd/4th rod (the centre one) has a 1/16" dia hole drilled vertically through it coincident with the 'O; ring. The hole can be seen when in 3rd gear. Has anybody seen this before or know why a hole would be there.? Roger Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 24, 2019 Report Share Posted January 24, 2019 most holes into the selector rods etc is to reduce hydraulic problems caused by oil getting trapped these small holes allow any to drain out its not an uncommon thing. the small chassis 3 rail has them they also allow a punch in to pop the welch plugs out the top cover if thats a help Pete Link to comment Share on other sites More sharing options...
RogerH Posted January 24, 2019 Author Report Share Posted January 24, 2019 Hi Pete, many thanks for that. It is odd that it is on/across the 'O' ring. This makes the 'O' ring useless. Hmmmmm. Roger Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 24, 2019 Report Share Posted January 24, 2019 it might be for some other reason , , im talking 'generally ' in gearbox oddities Pete Link to comment Share on other sites More sharing options...
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