sleeve pinching?
#1
sleeve pinching?
i got a pincher of someone used. it had no paper work with it. i know it is real easy to get it to tight so i pinched some sleeves in old motors first. i find myself asking if the sleeve should be in the pincher a certain way.any certain port to the gap in the pincher? and should i pinch rotate 180 degrees and pinch again? any body with experiance with this tool please give all the info possible. thanks.
#5
do they actually work?
#7
but you can also loose the original performance of the engine but should be ok for pratice.
#8
Originally Posted by Chris West
but you can also loose the original performance of the engine but should be ok for pratice.
#9
just bringing an old thread back to life
anyone know a link of where to buy sleeve pinching tools? its just like a c-clamp, right? cant seem to find any info on a sleeve pincher that will work on an ofna .32. thanks in advance
anyone know a link of where to buy sleeve pinching tools? its just like a c-clamp, right? cant seem to find any info on a sleeve pincher that will work on an ofna .32. thanks in advance
#10
thats because those dont work lol. (read on...)
You pinch it in a press, not with some 50 cent clamp... those 50 cent clamps used to sell on EBAY like crazy, and those i am referring to.
You pinch it in a press, not with some 50 cent clamp... those 50 cent clamps used to sell on EBAY like crazy, and those i am referring to.
#11
Originally Posted by marvi
just bringing an old thread back to life
anyone know a link of where to buy sleeve pinching tools? its just like a c-clamp, right? cant seem to find any info on a sleeve pincher that will work on an ofna .32. thanks in advance
anyone know a link of where to buy sleeve pinching tools? its just like a c-clamp, right? cant seem to find any info on a sleeve pincher that will work on an ofna .32. thanks in advance
In 99%, the sleeves he pinched lasted longer and showed better performance than a new one.
That guy kinda invented sleeve pinching....
It's well worth the $15!!!
www.osrocketracing.com
#13
thanks for the inputs
is there a difference between rayaracing's method and osrocket's method? pros and cons on each pinching service, from anyone who tried both?
is there a difference between rayaracing's method and osrocket's method? pros and cons on each pinching service, from anyone who tried both?
#14
Tech Regular
iTrader: (1)
Originally Posted by marvi
thanks for the inputs
is there a difference between rayaracing's method and osrocket's method? pros and cons on each pinching service, from anyone who tried both?
is there a difference between rayaracing's method and osrocket's method? pros and cons on each pinching service, from anyone who tried both?
I also own all his resizing fixtures for .12 engines. I still need to get stocked on .21 and .28 sizes.
This is definitely not the same thing that you get on ebay with some funky c-clamp from harbor freight!! Rays jigs are toleranced to the .0001" and have specific control measures to direct where in the liner the pinch is applied. Also most importantly, the sleeves arent clamped at all but rather swedged in a concentric fixture to retain perfect roundness (mucho importante!!!)
So I guess what I am saying is DO NOT USE C-CLAMPS!!!! THEY ARE BOGUS AND WILL RUIN YOUR ENGINE!!!
BK
#15
Originally Posted by mxwrench
I havent tried osrockets service, but I do have experience with Rayaracing. His service is very professional and well managed. In fact, I wrote an article in XRC some years ago about his resizing service.
I also own all his resizing fixtures for .12 engines. I still need to get stocked on .21 and .28 sizes.
This is definitely not the same thing that you get on ebay with some funky c-clamp from harbor freight!! Rays jigs are toleranced to the .0001" and have specific control measures to direct where in the liner the pinch is applied. Also most importantly, the sleeves arent clamped at all but rather swedged in a concentric fixture to retain perfect roundness (mucho importante!!!)
So I guess what I am saying is DO NOT USE C-CLAMPS!!!! THEY ARE BOGUS AND WILL RUIN YOUR ENGINE!!!
BK
I also own all his resizing fixtures for .12 engines. I still need to get stocked on .21 and .28 sizes.
This is definitely not the same thing that you get on ebay with some funky c-clamp from harbor freight!! Rays jigs are toleranced to the .0001" and have specific control measures to direct where in the liner the pinch is applied. Also most importantly, the sleeves arent clamped at all but rather swedged in a concentric fixture to retain perfect roundness (mucho importante!!!)
So I guess what I am saying is DO NOT USE C-CLAMPS!!!! THEY ARE BOGUS AND WILL RUIN YOUR ENGINE!!!
BK