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+--- Thread: Distributor End Float (/showthread.php?tid=9447)
Distributor End Float - John P - 29-06-2024
I took the distributor (DK4A) off to fit a new drive gear bought from Jamie but noticed there is a significant degree of end-float both with the old brass gear and the new steel one.
This is around .048" even though there is a relatively thin Tufnol (?) thrust washer. This washer seems to be OK although it's quite small in diameter so could I simply fit a steel washer between the new gear and the existing thrust washer.
Alternatively I could possibly cut a washer from the boss of the old gear which would then have the correct bore and be the same diameter as the boss of the new gear but without a lathe I'd have to try to do this by hacksawing and filing.
Any advice?
John.
RE: Distributor End Float - John Cornforth - 29-06-2024
Hi
The end play should be minimal (a few thou), or the timing will vary. From memory the standard Tufnol washer is about 30 or 40 thou. I see no reason why a second washer should not be added to reduce play. The shaft diameter is something odd like 0.48 inches.
I have found a bit of variability in the position of the hole in the gear relative to the face of the boss. I don't have space for a lathe, but have a couple of friends who have such beasts and just buy them a beer or two if I need a little job done like making a custom Teflon spacer - see pic. Original steel gears are hardened, but if your old one is brass you might be able to cut it down with hand tools. Filing flat could be a challenge !