Thread: pump shoe questions
05-21-2008, 10:29 PM #1
- Join Date
- Oct 2006
pump shoe questions
I have been tuning my 02 1300 conversion on and off of late and have around 2.5 hours on the motor now.
best speed to date is around 72.1@ 7210 rpm with a 14/22 DF ( way low for my mods).
I have been going back over my work looking for areas slowing me down and when i checked my pump shoe clearance today i discovered ( i am an idiot) that my shoe only has .062 clearance instead of the recommended .075.
now i doubt very much i can get the shoe back out as it is sealed in with sikaflex and i also know this is going to be costing me because the grate will be digging in to much due to that extra .015 depth but i need to easy way to address it.
Can i just take .015 odd off the base mounting part of the grate to lift it up a little to address this issue or is there an easy way to remove a sealed
Also any ideas on how much this would be slowing me up with an 800 grate on it?
all thoughts welcome
05-21-2008, 11:10 PM #2
Dont sweat it. The speed is more in the plate, tab, prop combo. Just so the shoe is recessed and square in the hull.
05-22-2008, 06:49 AM #3
Your pump shoe is 100% fine.
The .075 is a average i was able to get a small coin through it its sweet.
Like Rich said it needs time to tune the tabs and plate prop set up.
05-22-2008, 07:26 AM #4
when adjusting my plate the other day I noticed my shoe was slightly higher in one side of the hull vs the other (left side lower). I have loose nickel clearance in right side and tight nickel in left. It was fine when i sealed it but thinking maybe I had jacked it up not level or soemthing while it was curing. Is this something I should worry about (adverse handling affects or scrub speed)?
05-22-2008, 07:29 AM #5
06-01-2009, 03:46 PM #6
Sorry to bring back an old thread, but my shoe is the same way.
When under the ski, the left side has a loose nickel's worth and the right side is probably .65-.70 clearence - not quite a nickel - even in the front. Out of the box, the ski's gone almost 68 mph. Should I worry about it or try to sand/grind that side down to make it more even?
I am guessing that the ski, and probably many others, come this way from the factory...
06-01-2009, 03:50 PM #7
Should I worry about it
I typically run a little less than .075 because this improves handling with very little if any speed loss
06-01-2009, 04:04 PM #8
06-01-2009, 10:14 PM #9
I just want to see what others think before I seal the shoe tomorrow...
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