Dad has 50,000 miles on his 09 Triglide right now, the rear cylinder leak down became more than we could live with >10%. So we decided to change things up a bit. Had another set of cylinders laying around which were sent out and bored to maintain the present 103" engine. Sent a spare set of heads out and had some port work done, and swapped out the Wood TW-555 cams in favor of some Head-Quarters HQ-525 cams.
The victim being stripped.
Plenty of carbon on the pistons, didn't remove the carbon. Was interested to see if just moving the breathers to external would clean things up some.
Nice shiny new piston installed and ready for action.
Cam chain tensioners were in decent shape for 50,000 miles, put new ones in while I had it apart.
The read cylinder head looked crappy, notice all the burnt off powder coating. This sucker doesn't get enough air back there.
Here is the front head, much nicer.
This is the combustion chamber on one of the ported heads, had Big Boyz head porting http://www.bigboyzheadporting.com/ do the work. I had them cc the combustion chambers and mill the heads to get 85cc. They had to take .010 off the front and .013 off the rear. This should give 10.1 static compression using a .030 MLS head gasket.
Decided to do away with the Automatic Compression releases and use good old manual ones.
Using a slick new tool for installing the pushrod tube clips, I got tired of the old screwdriver trick. This thing is the bomb.
Getting close to having it all back together and running.
The victim being stripped.
Plenty of carbon on the pistons, didn't remove the carbon. Was interested to see if just moving the breathers to external would clean things up some.
Nice shiny new piston installed and ready for action.
Cam chain tensioners were in decent shape for 50,000 miles, put new ones in while I had it apart.
The read cylinder head looked crappy, notice all the burnt off powder coating. This sucker doesn't get enough air back there.
Here is the front head, much nicer.
This is the combustion chamber on one of the ported heads, had Big Boyz head porting http://www.bigboyzheadporting.com/ do the work. I had them cc the combustion chambers and mill the heads to get 85cc. They had to take .010 off the front and .013 off the rear. This should give 10.1 static compression using a .030 MLS head gasket.
Decided to do away with the Automatic Compression releases and use good old manual ones.
Using a slick new tool for installing the pushrod tube clips, I got tired of the old screwdriver trick. This thing is the bomb.
Getting close to having it all back together and running.
. I've been fiddling with engines since I was young, the best was helping build and tuning this little beast.
