astro.domine
05-11-2020, 10:29 PM
I'm in need of the input of an experienced engine builder.
I just tore down my SR because the rings didn't seat well after rebuild (was running too rich), and I'm concerned about the cylinder wear. Had ~13,000mi on rebuild.
As you can see, the exhaust side has vertical streaks on all cylinders - is that normal? But what's worse is cylinder #1, which has circular grooves deep enough to feel with a fingernail. What would cause this??
Do you think a hone and new rings will suffice?
Cylinder #1
https://imgur.com/IawmjVl
#2
https://imgur.com/bbZ5SHK
#3
https://imgur.com/VATwdfs
#4
https://imgur.com/Yds4WJw
Specs:
-Wiseco 86.5mm pistons (bored to match)
-Eagle Rods
-ACL Bearings
-ARP Head and Main Studs (crank was line-bored)
I just tore down my SR because the rings didn't seat well after rebuild (was running too rich), and I'm concerned about the cylinder wear. Had ~13,000mi on rebuild.
As you can see, the exhaust side has vertical streaks on all cylinders - is that normal? But what's worse is cylinder #1, which has circular grooves deep enough to feel with a fingernail. What would cause this??
Do you think a hone and new rings will suffice?
Cylinder #1
https://imgur.com/IawmjVl
#2
https://imgur.com/bbZ5SHK
#3
https://imgur.com/VATwdfs
#4
https://imgur.com/Yds4WJw
Specs:
-Wiseco 86.5mm pistons (bored to match)
-Eagle Rods
-ACL Bearings
-ARP Head and Main Studs (crank was line-bored)