Thought I'd give everybody a heads up.
Way overdue to bleed the system on my 2019, fluid looking pretty murky. Dug out my 30 year old Motive Power Bleeder and clamped an 8mm bolt in the hose to see if it would still pressurize. All good, plastic a bit yellowed but still works.
Which adapter? Searched all the threads on here, consensus either the plastic 1108 or billet 1118, same configuration just different material, though some reports of the plastic 1108 failing to seal. Went with the $20 cheaper 1108, I like a challenge.
Showed up, tested it, failed to seal. Not that it failed completely, just wouldn't seal consistently, any slight jiggling of the cap while pumping and it would leak. First tried the obvious, thicker gasket, apart from making the cap extremely difficult to install, no significant difference.
Noticed the underside of the cap wasn't flat, molding process had excess material at each of the 3 tab locations that extended onto the sealing surface. Ah ha moment, this would be the difference between the 2 caps, machined billet would be completely flat. May also explain why some had no issues with the 1108 if different tooling for the mold. Wrapped some 200 grit paper around a stick and went at it, 20 minutes later completely smooth. Worked, with the thicker of the 2 supplied gaskets seals fine.
Verdict, if you already have a 1108 it is possible to make it work, if you're ordering just get the 1118 and save yourself the headache.
One other comment, if you haven't bled your system yet, do it now, brakes are noticeably better, but the clutch is a revelation, significantly improved the shifting.
Way overdue to bleed the system on my 2019, fluid looking pretty murky. Dug out my 30 year old Motive Power Bleeder and clamped an 8mm bolt in the hose to see if it would still pressurize. All good, plastic a bit yellowed but still works.
Which adapter? Searched all the threads on here, consensus either the plastic 1108 or billet 1118, same configuration just different material, though some reports of the plastic 1108 failing to seal. Went with the $20 cheaper 1108, I like a challenge.
Showed up, tested it, failed to seal. Not that it failed completely, just wouldn't seal consistently, any slight jiggling of the cap while pumping and it would leak. First tried the obvious, thicker gasket, apart from making the cap extremely difficult to install, no significant difference.
Noticed the underside of the cap wasn't flat, molding process had excess material at each of the 3 tab locations that extended onto the sealing surface. Ah ha moment, this would be the difference between the 2 caps, machined billet would be completely flat. May also explain why some had no issues with the 1108 if different tooling for the mold. Wrapped some 200 grit paper around a stick and went at it, 20 minutes later completely smooth. Worked, with the thicker of the 2 supplied gaskets seals fine.
Verdict, if you already have a 1108 it is possible to make it work, if you're ordering just get the 1118 and save yourself the headache.
One other comment, if you haven't bled your system yet, do it now, brakes are noticeably better, but the clutch is a revelation, significantly improved the shifting.
