For my Berkshire, aluminum head cylinder, I am on my last bore.49.5,were there after market oversized pistons or sleeves that were available, I have porting on my cylinder,so don't want to start from scratch on another cylinder,
thanks
I may still have some 100 sleeves. Let me know if you need one.
Ron Carbaugh
Have the cylinder nicasil plated at the size you are at now.
Brian
more info Brian. The clearance is getting out of spec,mainly at the skirt area. piston starting to slap. Don't know how that works
I'm assuming then that wiseco didn't make oversized pistons then?
Wiseco made .080 over, 50mm I believe. Contact Bore Tech, vintage Wiseco Pistons. 100cc pistons are a dime a dozen, was giving them away 10 years ago as no one wanted a 100cc. Or contact Jake Fischer, he still has tons of parts. Good luck!
An iron liner can be nicasil coated right over the iron. It can not be coated thick enough to go down to 49mm but you can stay at 49.5mm forever.
Brian
Brian:
Who are you using for the nicasil? Do you know how much it costs?
Thanks, Ted
I use Millennium Technologies. I have not had a cylinder plated in a while but it was about $200.
//www.millennium-tech.net
Brian
thanks for all the info, this is going to be a winter project,
There is a Wiseco P8 50mm piston on eBay right now http://m.ebay.com/itm/WISECO-162P8-2MM-OVERBORE-PISTON-SACHS-PENTON-100-BERKSHIRE-NEW-OLD-STOCK-/252260723043?hash=item3abbe92963%3Ag%3AeoAAAOSwqrtWoQyX&_trkparms=pageci%253Aee9d1883-864f-11e6-9658-74dbd1808598%257Cparentrq%253A7651cb691570a548a1b60717fffdd2f1%257Ciid%253A17
Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1978-1979 MX-6 175 & 250 KTM's
1976-78 125-400 RM's & 79 PE250 Suzuki & 2012 DR650
2007 CR125R Honda
1977 MC250 Maico
thanks Michael, piston ordered
Mickey