Oil Pump drive gear not seating fully
Thread Starter
Teching In
Joined: Dec 2020
Posts: 33
Likes: 2
From: Wisconsin
Oil Pump drive gear not seating fully Howdy,
First time building a Gen3 LS. I have a aftermarket adjustable cam timing set (Comp Cams #3158KT) that came with an oil pump drive gear. The timing set is installed however when I try to install the drive gear comes up about ¼” from the timing gear. In other words I can't slide it all the way down the crankshaft snout until it makes contact with the timing gear. Tried heating it up a little in the convection oven hoping that would expand it enough for me to install but it didn’t work. I’ve read that impacting the crank shaft could damage the trust bearing so I’m reluctant to hit the gear with even a small hammer. Has anyone had this issue? Or any suggestions?
Thanks.
First time building a Gen3 LS. I have a aftermarket adjustable cam timing set (Comp Cams #3158KT) that came with an oil pump drive gear. The timing set is installed however when I try to install the drive gear comes up about ¼” from the timing gear. In other words I can't slide it all the way down the crankshaft snout until it makes contact with the timing gear. Tried heating it up a little in the convection oven hoping that would expand it enough for me to install but it didn’t work. I’ve read that impacting the crank shaft could damage the trust bearing so I’m reluctant to hit the gear with even a small hammer. Has anyone had this issue? Or any suggestions?
Thanks.
TECH Fanatic
Joined: Jan 2018
Posts: 1,250
Likes: 239
From: Dade City, Fl.
What brand did you purchase ? here is the install instruction for Cloyes single roller adjustable kit. Step # 10.
https://cloyes.com/wp-content/upload...structions.pdf
If I remeber correctly I used a socket or pipe that fits over the crank and used a bolt to draw it on
https://cloyes.com/wp-content/upload...structions.pdf
If I remeber correctly I used a socket or pipe that fits over the crank and used a bolt to draw it on
Thread Starter
Teching In
Joined: Dec 2020
Posts: 33
Likes: 2
From: Wisconsin
What brand did you purchase ? here is the install instruction for Cloyes single roller adjustable kit. Step # 10.
https://cloyes.com/wp-content/upload...structions.pdf
If I remeber correctly I used a socket or pipe that fits over the crank and used a bolt to draw it on
https://cloyes.com/wp-content/upload...structions.pdf
If I remeber correctly I used a socket or pipe that fits over the crank and used a bolt to draw it on
TECH Enthusiast
Joined: Mar 2005
Posts: 663
Likes: 384
From: South Carolina
Most aftermarket timing sets the oil drive just slips on as does the crank gear. Most people will flip the old factory gear/pump drive and use it to tap on the new drive. It shouldn't have much resistance like the old OEM set. You could place on the old OEM backward and use the old crank bolt and a large washer or socket to press on the new drive. When the balancer pushes up against the oil pump drive it keeps it tight against the lower gear and crankshaft.
