Installation instructions for gear drive
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 1,023
Likes: 1
From: New Carlisle, Ohio
Installation instructions for gear drive
I just picked up a Pete Jackson gear drive off E-bay.
It is supposed to be for a factory hydraulic roller cam motor and "quiet".
Anyone have a set of instructions they can email me?
Also how can you tell this is the correct set for the roller cam motor?
Any way to distinguish the quiet set?
The cam gear is maked PJ and 00.
No other markings other than timing marks.
It is supposed to be for a factory hydraulic roller cam motor and "quiet".
Anyone have a set of instructions they can email me?
Also how can you tell this is the correct set for the roller cam motor?
Any way to distinguish the quiet set?
The cam gear is maked PJ and 00.
No other markings other than timing marks.
Burning Brakes
Joined: Jul 2004
Posts: 806
Likes: 0
From: Langley B.C.
Originally Posted by Muffin
Everything I have read says to steer clear of gear drives. The gear whine confuses the knock sensor/EST. Would be very interested to know how your set up works out.
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 1,023
Likes: 1
From: New Carlisle, Ohio
Thanks for your input, but I'm sure it will work fine.
Over on the Thirdgen forum there are several using them.
This is one of those things that everyone has read,including myself, but very few have experienced this.
Even so, could be programmed out, if encountered.
Back to the main problem: Anyone have a set of instructions, anyone capable of verifying that I have the right parts?
Over on the Thirdgen forum there are several using them.
This is one of those things that everyone has read,including myself, but very few have experienced this.
Even so, could be programmed out, if encountered.
Back to the main problem: Anyone have a set of instructions, anyone capable of verifying that I have the right parts?
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
The "quiet" gear drive isn't necessarily quiet. It just differentiates it from the "loud" gear drive, which IS loud.
I have never installed one, but I would expect the installation to be self evident.
As with a timing chain, there is no different gear drive for solid and hydraulic camshafts, nor for flat tappet and roller cams. Maybe you DO need instructions.
RACE ON!!!
I have never installed one, but I would expect the installation to be self evident.
As with a timing chain, there is no different gear drive for solid and hydraulic camshafts, nor for flat tappet and roller cams. Maybe you DO need instructions.
RACE ON!!!
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 1,023
Likes: 1
From: New Carlisle, Ohio
Thanks Pete,
I am sure that is why there are two different part numbers for the small block chevy with the quiet gears: one for earlier standard cams, and one for the later factory hydraulic roller.
I guess I still need instructions, CFI-EFI.
I am thinking there is a proper set up for the idlers to float with a sufficient amount of engagement. This is probably detailed in the instructions for set up with the front cover.
Still needing the instructions.
I am sure that is why there are two different part numbers for the small block chevy with the quiet gears: one for earlier standard cams, and one for the later factory hydraulic roller.
I guess I still need instructions, CFI-EFI.
I am thinking there is a proper set up for the idlers to float with a sufficient amount of engagement. This is probably detailed in the instructions for set up with the front cover.
Still needing the instructions.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Correct. I was thinking of the variety of camshafts that usually replace the pre-OE roller cams. The timing sets for those engines, are universal, unless an OE roller cam is being adapted. OE roller cams use a different cam gear or sprocket than a retro roller camshaft. I don't know that it is the bolt pattern, so much as in is the step in the nose of the camshaft to accommodate the end play control.
RACE ON!!!
RACE ON!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Melting Slicks
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Gear Drive
You are not going to like this but if I were you I would resell the gear drive. Gear drives create vibration inside your engine and are not a good addition especially for street driven engines. Guys spend lots of money to balance their engines and add belt drives to make the engine more smooth and gear drives work exactly the opposite. Sorry to rain on your parade but I think if you check all the top engine builders you won't see a gear drive unless it has a 14/71 on it supercharger on it.
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
I had a Pete Jackson noisy gear drive in my old 327, man that thing sounded wicked. Everyone though I had a blower. I don't think there's any benefit in a gear drive on a roller cam.
But to each his own.
But to each his own.
Instructor
Joined: Sep 2005
Posts: 107
Likes: 0
From: Arizona
Any repair manual can detail the installation. If you don't have access to one, email me. I'll send you a copy. As for the knock sensor, I too programmed it out at first when I installed one on a friends camaro, he too insisted on a gear drive. He pinged a little bit, so we reset it to stock and installed a Electronic Spark Control module from an '88 Buick. Common trick for the TPI as it is way less sensitive. It's your car, and if you take the right actions you'll be just fine
Thread Starter
Burning Brakes
Joined: Dec 1999
Posts: 1,023
Likes: 1
From: New Carlisle, Ohio
Originally Posted by comp
have you tried their web site ?
I'm not sure why so many need to voice their opinions on gear drives?
The inquiry is for a set of instructions, and a confirmation that the right gear set was purchased
.
Racer
Joined: May 2006
Posts: 286
Likes: 0
From: Alpine California
Sorry Gene,
It's been 10 years and two moves since I installed my last one, so I can't help with the instructions. It's still working just fine though, so reliability hasn't been a factor. I do remember that there is a specific backlash that you set with little offset eccentric bushings on the cam gear (just like the ones you use to advance or retard a cam), and I didn't see what year your car/motor is in your profile, but if it doesn't have a cam retainer, you MUST use the thrust bearing, and
I recommend welding a 1.5" x 1.5" x 1/16 thick plate to the timing cover where the thrust bearing will rub, cause with enough use it will eventually wear a hole in the timing cover (from what I did read in your profile it sounds like your car is a track car, so you may or may not have to worry about this), but it'll already be apart, and I'll bet you won't want to pull it down that far again just because it wore a hole!
It's been 10 years and two moves since I installed my last one, so I can't help with the instructions. It's still working just fine though, so reliability hasn't been a factor. I do remember that there is a specific backlash that you set with little offset eccentric bushings on the cam gear (just like the ones you use to advance or retard a cam), and I didn't see what year your car/motor is in your profile, but if it doesn't have a cam retainer, you MUST use the thrust bearing, and
I recommend welding a 1.5" x 1.5" x 1/16 thick plate to the timing cover where the thrust bearing will rub, cause with enough use it will eventually wear a hole in the timing cover (from what I did read in your profile it sounds like your car is a track car, so you may or may not have to worry about this), but it'll already be apart, and I'll bet you won't want to pull it down that far again just because it wore a hole!
