Peter McEvedy Posted May 20, 2012 Share Posted May 20, 2012 I want to change the fuel hoses on my GT6 - Having measured them, they seem to be between 6 and 8 mm internal bore! What is the definitive size? I also want to change the heater hoses and hoses from the rocker cover to SU carbs. Any ideas of official internal bores as mine all seem to measure differently!! Need changing as looking a bit cracked in places!! Searching the site suggests 6mm for the fuel line but last post in thread says these won't fit!! Link to comment Share on other sites More sharing options...
Velocita Rosso Posted May 20, 2012 Share Posted May 20, 2012 From where to where on the fuel?Heater hoses 1/2" bore Link to comment Share on other sites More sharing options...
Peter McEvedy Posted May 20, 2012 Author Share Posted May 20, 2012 From fuel pump to SU carbs. I think 8mm will be the answer. Link to comment Share on other sites More sharing options...
JensH Posted May 20, 2012 Share Posted May 20, 2012 http://www.locostbuilders.co.uk/viewthread.php?tid=153126 Link to comment Share on other sites More sharing options...
rotoflex Posted May 20, 2012 Share Posted May 20, 2012 The factory fuel line from the fuel pump around the front of the engine & stopping at the front right corner of the engine was a metal line. More than a few were mangled leaving just a stub at the pump from which some ran rubber fuel lines instead. Link to comment Share on other sites More sharing options...
JimGT6 Posted May 21, 2012 Share Posted May 21, 2012 From fuel tank to fuel pump was 5/16"(8mm) OD metal line. From pump to carbs was 1/4" (6mm) metal line in two pieces. One from pump around outside of distributor to behind coil around front of block under waterpump as Bill Hopper said, the second was a brazed affair that connected the two carbs to the first line. There are only three 1/4" ID rubbber hoses about 2" long each.Jim Link to comment Share on other sites More sharing options...
Peter McEvedy Posted May 21, 2012 Author Share Posted May 21, 2012 Mine is no longer standard as it has HS6 carbs fitted and the feed now comes from the fuel pump around the back of the engine to the rear carb first. I'll measure again!! :) Link to comment Share on other sites More sharing options...
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