blower rebuilding

need a little info
1-how much clearance do i need between case
and black strips
2-how is the best way to measure this
bore gauge and mic
3-when turning strips on lathe is their
any special notes
4-do the inner white strips need any triming
5- my cup plugs in ends of rotors are loose and
gaoged rear plate
6-is their any smooth aluminum plugs that can be
installed in all the rotor holes that will eliminate
the dish from cup plugs
7-how do you set or check timing
8-i have a hh littlefield 14-71 we run 60 over
and a 14-71 hh superman 33 over
9-is their a tool that holds rotors together to slide
them into the case
10- do we need to set end play in rotors
11- if i machine rear plate will this need to be
reanodized and end play reset
thanks
duane
618-781-4703

 

Best bet is to call JR @ RBS Superchargers
530-292-3368

 

#2-i believe most use long feelers gages
#4-on the white strips we generously use wd-40 when sliding them in, as you can imagine, the strip gets stretched out, so we leave about 1 inch stick out each end of the rotor, then hit the ends in order to shorten/squish them with a rubber hammer, final step is to cut them off flush with the rotor
#5-i'm assuming your rotor plugs are frost plugs?
In the spring of '04 LF anodized some aluminum plugs/slugs for us, they recommended pounding them in, (they were press fit), then chucking the rotor and facing them off
We were testing on the dyno so we measured and marked each respective plug location, then faced the plugs individually. Then on the dyno when we installed them they were already flush to the rotor ends, but then we drilled and tapped through the rotors and put a screw into them to hold them in. We didn't trust just the press fit.
#6-several companies use pressed in nylon plugs
#9-put the rotors into the rear or front endcap first, this will help hold them together

 

I use a large hose clamp to squeeze the front of the rotor together, once they slide into the case 3 or 4 inches, you can remove the hose clamp.

 

tool

is their a roto zip type tool to
cut black strips instead of using a lathe
ive hear the fuel teams use a similar tool
that has a mic on it
thanks duane
618-781-4703

 

Oh ye, someone from Nebraska (Lincoln or Omaha) came up with it. I was told it was quickly copied by some big teams and now they have there own versions.

I think he is on Cruz's team. It's not Kevin from Sioux City, but I can't remember the name.

 

that little tool is better than a shirt pocket

 

Roto Zip Tool Maker

Here is a guy that makes a nice roto zip tool for black strips. He also makes some nice hemi rocker shafts at a great price.

Product Machine Co 13800 Progress Pkwy Ste A North Royalton, Ohio 44133 Paul 440-582-6677

 

wow

wow that tool is 4500.00
need something a lot cheaper
may just use lathe
any used ones available
618-781-4703
duane

 

double wow......$4,500...that would buy you a very nice gap bed lathe..and you can make a hole lot of other things on it..not just black strips Dave
www.myspace:D.com/daveloweswr

 

wow sorry paul

my last post sounded like i said he was too high
ive never seen his tool so sorry i made that
impression
i felt it was high for me
but i may split the cost with a buddy and still buy one
thanks and sorry again paul
duane