From: | Mutt | e-mail: | pigstye13-A-aol.com |
Subject: | RE: RE: RE: RE: RE: Rod Bearings | Date: | Thu Nov 6 21:55:56 2014 |
Response to: | 19980 |
The rod is a later model Honda CR250R rod. But it is not a direct replacement. This rod is MUCH beefier, uses a larger wrist pin and the big end is also larger. The flywheels have to be shaved on the inside about .078 each and the rod pockets also need to be opened up to clear the rod diameter. A special crank pin also needs to be machined. Lot of work, but the rods are seriously strong and you can find brand new rod assemblies on eBay for $75 or less. Hotrods, Pro-X, Vesrah, all the good rod companies carry them. ----- ORIGINAL MESSAGE FOLLOWS ----- Mutt, Thank you for the info. My pin does measure 1.000". The rod measures 1.245". Divide .245" X 2 = .1225" pins. It looks like the rod was honed and .121" pins put in it. it has a nice finish and is round. There is play up and down and rods won't live very long with up and down play. I will find or make some rollers. I specialize in pre 16 bikes, we are always making or using rods out of different machines, making pins and rollers. Looking in the parts book showed over size pins. I didn't know the earlier machines where different. What was the Pro-X rod for, that worked in your Hummer? Looking in there catalog, I didn't see Hummer rods. Thanks again, Scott |