Rotary Engine Building, Porting & Swaps All you could ever want to know about rebuilding and porting your rotary engine! Discussions also on Water, Alcohol, Etc. Injection

Pictures Of A Half-bp Build (large, Long)

Thread Tools
 
Search this Thread
 
Old 06-14-2004, 04:10 AM
  #11  
Senior Member
 
Srce's Avatar
 
Join Date: Oct 2002
Posts: 5,547
Default

Sweet, but IS that blood on the rotor in the second pic LOL?



That engine sounds awsome. Good ****.
Srce is offline  
Old 06-14-2004, 04:52 AM
  #12  
Member
 
cach22's Avatar
 
Join Date: Jan 2003
Location: Melbourne, Australia
Posts: 48
Default

sweet there working now



very nice, what turbo etc is it running



cheers



Lance
cach22 is offline  
Old 06-14-2004, 07:37 AM
  #13  
Senior Member
 
toddp31's Avatar
 
Join Date: Dec 2002
Location: Misawa Japan
Posts: 826
Default

Sweet, what is the size of the Bridge? What grit paper you use to polish the bearings?



I am putting together my Half-Bp together this week too, I hate side seals
toddp31 is offline  
Old 06-15-2004, 09:33 PM
  #14  
Senior Member
 
ryosuke_fc's Avatar
 
Join Date: Aug 2003
Posts: 157
Default

That sounds great.
ryosuke_fc is offline  
Old 06-16-2004, 01:44 PM
  #15  
Senior Member
 
GMON's Avatar
 
Join Date: Dec 2003
Location: Minneapolis,MN
Posts: 500
Default

3 Questions???



1)Does the excess hylomar casue any problems in the coolant passeges or inside the rotor housing. Or do you clean it up before you put on the housing?



2) I noticed you dont use a "sealant" for the legs. Have you ever had any leaking with the hylomar instead of silicone?



3) Why does everyone poish their bearings? There will be little to no oil on them at startup compared to one with 400-600 grit 60deg crosshatch and shiny surfaces do not reatain oil. Just wondering the logic on this one???



Thanks



GregW
GMON is offline  
Old 06-16-2004, 01:54 PM
  #16  
Senior Member
 
GMON's Avatar
 
Join Date: Dec 2003
Location: Minneapolis,MN
Posts: 500
Default

One more question. I dont notice very much angle on the BP. Could just be the pics but it looks like its 90 deg. If it is 90 deg have you ever thought of drilling in at an angle and then porting. I would just think it would flow better that way? Your thoughts???



Thanks



Gregory
GMON is offline  
Old 06-16-2004, 07:21 PM
  #17  
Senior Member
 
RONIN FC's Avatar
 
Join Date: Oct 2003
Location: Boston Ma.
Posts: 1,420
Default

BDC, dont mean to flood you with more questions. What type of seals are you using apex and side. Anything special?
RONIN FC is offline  
Old 06-17-2004, 01:12 AM
  #18  
Senior Member
 
Drago86's Avatar
 
Join Date: Jun 2003
Posts: 406
Default

"Cutting new side seals using Judge Ito's recommendation (thanks Ito)"





Just womdering what this recomendation is?



Engine looks awesome.







Bearings are polished to slightly increase clearence, and to reduce friction in the oil as it flows through the bearing.
Drago86 is offline  
Old 06-17-2004, 12:55 PM
  #19  
Senior Member
 
GMON's Avatar
 
Join Date: Dec 2003
Location: Minneapolis,MN
Posts: 500
Default

Bearings are polished to slightly increase clearence, and to reduce friction in the oil as it flows through the bearing.


You can increase clearance just the same with emery cloth. What about startup. Polished means less oil on the bearings and e-shaft at startup. I just cant see this ever being worth it when weighed against the negatives.



I dont know if it just my pistion experience or what but I think polished oil bearing/surface mod is wack. Am I the only one????



Do a little experiment. Take a polished bearing/e-shaft and one that is honed to a fine ra. Then put a drop of oil on each surface. Come back in an hour. You will never polish again.



Take it or leave it.

2cents



GregW
GMON is offline  
Old 06-17-2004, 05:25 PM
  #20  
Senior Member
 
RETed's Avatar
 
Join Date: Nov 2002
Location: Honolulu, Hawaii USA
Posts: 925
Default

Originally Posted by GMON' date='Jun 16 2004, 10:54 AM
One more question. I dont notice very much angle on the BP. Could just be the pics but it looks like its 90 deg. If it is 90 deg have you ever thought of drilling in at an angle and then porting. I would just think it would flow better that way? Your thoughts???
I'm still waiting for the pics on the "backcutting"...

But then again, I got blasted for that logic, so what do I know...





-Ted
RETed is offline  


Quick Reply: Pictures Of A Half-bp Build (large, Long)



All times are GMT -5. The time now is 06:52 PM.