| Author | Message | ||
     Cjburr |
It has come to the attention of those of us with oil consumption problems that the CP pistons used by some have oil drain holes in the oil control ring groove. This allows oil from the groove to drain under the piston, and there are holes above the wristpin in that groove that direct oil to the wristpin for better lubrication. The SE 1200 kit doesn't have these holes in their pistons, the stock 883 and 1200 do not have these holes and we have heard that the Buell pistons don't have them either. Can someone confirm this ?? Here are some pics of the holes Damn....why won't it let me link to pics from my photobucket album ?? a little help here would also be appreciated. Some folks are wondering if these holes are being overcome by the piston squirters, not draining properly, and perhaps contributing to the consumption issues. Wiseco pistons have these drain holes also, so I am wondering if anyone running these pistons or similar ones with the holes are experiencing any oil consumption issues. Do the CycleRama or Revolution Performance pistons have this feature ?? Thank you for your time and experience in this matter | ||
| Bad_karma |
Chris I will try and get you some picks of my stock pistons. I had squirter's added to my 88. joe | ||
| Alex |
Stock Thunderstorm pistons do have oil holes. Stock XB pistons don´t have them. The CP pistons in the Revolution kits do have oil holes. I used all combinations (even retrofitted piston skirt oilers with Thunderstorm engines) without any oil consumption problems. Best regards Alex M-TeK Engineering | ||
| Pammy |
Chris, our piston have the oil holes. We have no issues with consomption. or consumption  (Message edited by pammy on January 22, 2008) | ||
| Cjburr |
thank you all, that's what I was thinking......more B/S shoveled on the pile. Pammy, I'll be home soon from Denver and will need some dyno tuning, got any openings in February ?? thanks again, Chris | ||
| Bad_karma |
These are out of my 96 S1. Joe  | ||
| Pammy |
I will have to check with Charlie. I am not allowed near the appointment calender. I think Feb is pretty full though. I'll look when I get in. | ||
| Cjburr |
thanks for the pic bad_karma, those would be the holes. I appreciate the time you took to post that. The XB's don't have the holes but have the piston squirters, I would assume that Buell would have included them if they found that the squirters put too much oil on the walls and the ring couldn't control it. The stock Sportsters don't have the holes either.......could be a cost thing brought about by HD. Chris | ||
| Pammy |
I just caught the BS in your post....Man, that sucks. | ||
| Pammy |
You know on a sportster(no shock on the bottom) you might consider adding an external pump to prevent wet sumping and losing oil through the crancase venting. But, from your post, it appears that you guys are having blow-by issues. | ||
| Pammy |
I have some space in Feb...what time frame are you looking for? | ||
| Cjburr |
a weekend day if you have it if not I'll take what I can get as I have to return to Denver in March. I'll try to call you tomorrow from work as I'm working 12 hour shifts and you're gone when I get back to my room. thanks for your support through all this Chris | ||
| Pammy |
Okay I will wait for your call. |
