Failed LBZ oil pump

hondarider552

Getting faster
May 28, 2008
10,628
2
36
33
Arizona
Only reason I ask is because I went 50/50 on a broke LbZ from Cali. Long story short spun the shaft on the gear. 100% stock 114k miles. Put one of my lb7 pumps back in and a new turbo from Russ and seems to be ok.
 

ripmf666

Active member
Sep 20, 2006
15,123
14
38
47
Wentzville Mo
Gear is taper shaft with a grit on it. The lb7-Lly was right hand thread the Lbz went to left hand thread. But if started cold and oil pressure is high the driven they can slip on the shaft. Best if replacing to have gear and shaft keyed 3mm.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
1
38
33
Lexington, Ky
Gear is taper shaft with a grit on it. The lb7-Lly was right hand thread the Lbz went to left hand thread. But if started cold and oil pressure is high the driven they can slip on the shaft. Best if replacing to have gear and shaft keyed 3mm.

The lbz is most deffientaly a right hand thread too