Hedbngr18
02-14-2022, 02:41 PM
Just some pics of my recent complete engine rebuild. Wasn't thinking of posting when I started, so I don't have any before pics. The engine was in okay shape. Only a couple of dings/scrapes to fill in.
So, a little background on the engine. A top end was done back in '08 and the assembler accidentally rotated the head gasket counter clockwise one position. This led to the skirt of the piston shattering from overheating and dropping confetti into the crank. I pulled the top end to inspect back in 2010 and the bike sat like that until this past October. I did slowly collect parts during that time so when the urge struck, I would not be stuck waiting on parts or caught with a lack of funds holding me up.
I bought a Hot Rods complete bottom end rebuild kit, an L.A. Sleeve, all new bearings/seals, Wiseco 1.5mm over piston, Hinson basket, Barnett Dirt Digger discs/plates/springs, Boyesen Super Stock fiber reeds, NOS clutch hub and a Spec Bolt complete hardware replacement kit. The reed spacer block seen in the photos was already there.
I spent a weekend doing a port job a couple years back and according to people who used to do it for their race engines back in the day, I did a fine job. Nothing too extreme. Just very mild enlarging and a ton of smoothing/shaping/port matching. I sand blasted and repainted all the external surfaces. I just have the clutch cover and water pump left to put on. I can't wait to hear it run again. Enjoy.
So, a little background on the engine. A top end was done back in '08 and the assembler accidentally rotated the head gasket counter clockwise one position. This led to the skirt of the piston shattering from overheating and dropping confetti into the crank. I pulled the top end to inspect back in 2010 and the bike sat like that until this past October. I did slowly collect parts during that time so when the urge struck, I would not be stuck waiting on parts or caught with a lack of funds holding me up.
I bought a Hot Rods complete bottom end rebuild kit, an L.A. Sleeve, all new bearings/seals, Wiseco 1.5mm over piston, Hinson basket, Barnett Dirt Digger discs/plates/springs, Boyesen Super Stock fiber reeds, NOS clutch hub and a Spec Bolt complete hardware replacement kit. The reed spacer block seen in the photos was already there.
I spent a weekend doing a port job a couple years back and according to people who used to do it for their race engines back in the day, I did a fine job. Nothing too extreme. Just very mild enlarging and a ton of smoothing/shaping/port matching. I sand blasted and repainted all the external surfaces. I just have the clutch cover and water pump left to put on. I can't wait to hear it run again. Enjoy.