R-18 PL-13mm on 1096-11/54N/mm Shock leaking at shaft Shaft inspected and polished Checked ok. Replaced Seal Head Replaced shaft needle oring Body honed. BM4170 301354 Went out at R-18 PL-13mm on 1096-11/54N/mm Dyno Ran BM4310 301357 Came in at R-12 PL-16mm on 1095-54/140N/mm Shaft inspected and polished. Checked ok. Replaced Seal Head Replaced shaft needle oring Body honed. Preload adjutser rebuilt. BM4310 301357 Came in at R-12 PL-16mm on 1095-54/140N/mm Dyon Ran BRST