Delrin is not heat resistant enough for my tastes. I'd be afraid they would soften and droop or fly off under use.
Teflon I KNOW works...not sure about others.
Teflon I KNOW works...not sure about others.
piston pin bearing
- Thread starter turnofftheradio
- Start date
I have to agree that it can't be a good thing for that bearing to slip off to the side, I was surprised just how far it could slip. Really, the piston should be made to fit the bearing better, or the connecting rod, but both add weight. I see amazon has a large variety of ptfe washers that could work for cheap. If it makes it through the season I may just pull it apart to see how it held up and add any shims. I have a feeling I may have one of those bearing munchers.
46 miles now, running great. top speed on flat ground by gps at 34mph with a 41t on 26" wheel. Interesting week though, started out breaking a spoke on the ragjoint side at 32mph (pothole). Fixed that. Gas tank started leaking at the studs. soldered them (scary). put a new plug in and broke my plug wire. replaced that. Took a nice ride through rouge park and am still alive and have my wallet. I'll call it a good week, as the bike is still going.
I've hit 100miles now without a problem. Probably won't update till 500 miles or the end of the season, or it's demise. I passed an inquisitive looking sheriff yesterday. He did not bother with me at all. I've officially hit 35mph, I don't think 36 will happen. Happy motoring.
Nice to know about teh Stihl bearing... I also noticed the excessive slop in the pin clearance on my last build and ended up using a wider bearing than I wanted. It does look like the Stihl bearing with PTFE washers should be a winning combination tho.
