Timing Chain Thrust bearing thickness?
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Timing Chain Thrust bearing thickness?
How is the Timing Chain Thrust bearing thickness determined?
I need a new timing gear set and the one I took off (JP Performance 5981T) had a thin thrust roller bearing on the camshaft side of the cam sprocket.
I can order the same unit with the Line Bore option but I would rather get a Cloyes and I don know how you determine this thrust washer/bearing spacing.
Engine is a 406ci
EDIT: I popped the existing bearing off the sprockets and it measures @ .125" so it looks like a .150" bearing is the deal,,, the other option is an .030" or something substantially thinner
Any ideas?
I need a new timing gear set and the one I took off (JP Performance 5981T) had a thin thrust roller bearing on the camshaft side of the cam sprocket.
I can order the same unit with the Line Bore option but I would rather get a Cloyes and I don know how you determine this thrust washer/bearing spacing.
Engine is a 406ci
EDIT: I popped the existing bearing off the sprockets and it measures @ .125" so it looks like a .150" bearing is the deal,,, the other option is an .030" or something substantially thinner
Any ideas?
Last edited by LD85; Nov 4, 2007 at 08:48 AM. Reason: more info
Drifting
Joined: Dec 2005
Posts: 1,360
Likes: 3
From: NORTHEAST
How is the Timing Chain Thrust bearing thickness determined?
I need a new timing gear set and the one I took off (JP Performance 5981T) had a thin thrust roller bearing on the camshaft side of the cam sprocket.
I can order the same unit with the Line Bore option but I would rather get a Cloyes and I don know how you determine this thrust washer/bearing spacing.
Engine is a 406ci
EDIT: I popped the existing bearing off the sprockets and it measures @ .125" so it looks like a .150" bearing is the deal,,, the other option is an .030" or something substantially thinner
Any ideas?
I need a new timing gear set and the one I took off (JP Performance 5981T) had a thin thrust roller bearing on the camshaft side of the cam sprocket.
I can order the same unit with the Line Bore option but I would rather get a Cloyes and I don know how you determine this thrust washer/bearing spacing.
Engine is a 406ci
EDIT: I popped the existing bearing off the sprockets and it measures @ .125" so it looks like a .150" bearing is the deal,,, the other option is an .030" or something substantially thinner
Any ideas?
If you start changing the thickness of the thrust bearings you will be changing the gear alignment and where the lifters will be riding on the lobe and if its moved enough you may ge interfearance with the lobe and lifter.
We use the Cloyes 9-3100A which is the Hex-A-just as it comes with a torrington bearing and you can dial in the exactly where you want it.
Good luck with your build Carl
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I just bought a new true double roller, fits great, my old chain was really stretched
http://media.putfile.com/timing-chain-71
http://media.putfile.com/timing-chain-71
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
FWIW, Cloyes also offers sets to accomodate reduced center distance
(ie: to compensate for line-boring)
Did you settle on a 2-pc cover, LD85?
.
(ie: to compensate for line-boring)
Quick Adjust®, Hex-A-Just®, & Original True® Roller Sets are
available in .005 & .010 reduced center distance applications. Certain
applications available in .015. Call Factory for availability.
To order a reduced C.D. set, simply add the suffix to the part number,
for example 9-3100 - 005.
Here is a link to the Cloyes Performance catalogavailable in .005 & .010 reduced center distance applications. Certain
applications available in .015. Call Factory for availability.
To order a reduced C.D. set, simply add the suffix to the part number,
for example 9-3100 - 005.
Did you settle on a 2-pc cover, LD85?
.
Thread Starter
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
FWIW, Cloyes also offers sets to accomodate reduced center distance
(ie: to compensate for line-boring)
Did you settle on a 2-pc cover, LD85?
.
(ie: to compensate for line-boring)
Quick Adjust®, Hex-A-Just®, & Original True® Roller Sets are
available in .005 & .010 reduced center distance applications. Certain
applications available in .015. Call Factory for availability.
To order a reduced C.D. set, simply add the suffix to the part number,
for example 9-3100 - 005.
Here is a link to the Cloyes Performance catalogavailable in .005 & .010 reduced center distance applications. Certain
applications available in .015. Call Factory for availability.
To order a reduced C.D. set, simply add the suffix to the part number,
for example 9-3100 - 005.
Did you settle on a 2-pc cover, LD85?
.
Gonna stay with the 1-piece for now, but when I do buy one I found a nice 2-piece for $208
