Hello, Scottius, and thanks for your very comprehensive reply!
One reason for the T2 to T9 swap is that the original owner requested Caterham to convert from a cable clutch to hydraulic; but there isn’t really a suitable place to attach the hydraulic slave cylinder, and I’ve gone through four of them in my limited ownership; it leaks, I believe, because of mis-alignment. I don’t think my clutch problem was completely hydraulic related, I think it was also clutch fork to release bearing related, but regardless, the lump was coming out to fix it, and I had a previously acquired T9 in storage. I figured I may as well use it. I asked Burton Power for their advice, and they gave me a list of everything needed for the swap; were I to do the research and assemble the requirements myself, it would likely be Christmas…next year. And since all the clutch hardware was already set up for a hydraulic clutch, I figured running a hydraulic line is easier than running cable (I may be wrong about this), and now the slave cylinder will be on the same side of the bell housing as the clutch master cylinder, as opposed to now, where the master cylinder is naturally on the left driver side, and the slave cylinder was located on the right side. I do think that the original build sheet should have retained the cable clutch, but that’s water over the dam.
I’ll spend the next few days comparing your parts list to Burton’s…the clutch disk I am using is Burton’s C784AF, 190 mm, 1x23 splines, and Burton mentioned that the bearing carrier must be bored out about 0.010 to fit the larger nose….also, since my T9 apparently came out of a V6 donor, about 10mm must be ground off from the input shaft, and I need Burton’s 1” spacer, BH3-28. Presumably, this will move the shifter aft 1”, that’s tolerable, maybe even better; we’ll see. Burton suggested their BH11 aluminum bell housing, you know add lightness.
You mentioned gear kits, I computed overall ratios of my existing T2 vs my T9 and found that 1st gear is essentially identical for both…and 2nd & 3rd gears in the T9 is slightly taller than the T2, with 4th being the same. So with 5th gear being about 580 rpm lower than 4th at 60 mph I think I’ll be pleased with the way it compares with the T2.
Could you provide a link to the build manual for xflow T9, I haven’t run across that, and I’m sure it would be helpful.
Your response was WAY more than I could have dreamed, thanks very much.
Steve Rineer
Lititz, PA