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Torrington Roller Thrust bearing for distributor gear?
#958072
03/24/11 09:24 PM
03/24/11 09:24 PM
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Joined: Jun 2008
Posts: 577
Arkansas
Adrielp
OP
mopar
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OP
mopar
Joined: Jun 2008
Posts: 577
Arkansas
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Trying to find where I can get a Torrington Roller Thrust Bearing for the distributor gear. It goes underneath the bushing that slides over the shaft. Just curious if any of you guys know where I could buy one? Thanks for the help!
Adriel Paradise
Substation Design Engineer III
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Adrielp]
#958073
03/24/11 09:32 PM
03/24/11 09:32 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Sorry but in my opinion its a waste of money... the dist turns 1/2 the crank RPM, and how often have you changed the dist bushings.......... JMO 
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Mopar-Al]
#958076
03/24/11 11:03 PM
03/24/11 11:03 PM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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absolute waste of money and time.. something to come apart in the engine... Use the KISS method when in doubt. 
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Mopar-Al]
#958079
03/25/11 01:23 AM
03/25/11 01:23 AM
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Joined: Jul 2008
Posts: 615
Boise
Moparteacher
mopar
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mopar
Joined: Jul 2008
Posts: 615
Boise
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Quote:
I believe Larry Shephard does that, he may have the bearing
Yes. Larry Shephard makes them. Nice product. Bottom side of the gear is machined to accept the torrington. I use them in all my engines.
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Adrielp]
#958081
03/25/11 03:08 PM
03/25/11 03:08 PM
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Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard
master
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master
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
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Shepards Automotive 4131 S. Main St. Akron, OH. 44319 330-644-2000 Tell Larry Greg @ Superformance says hi
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Moparteacher]
#958082
03/25/11 03:48 PM
03/25/11 03:48 PM
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Joined: Jan 2003
Posts: 75,324
A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,324
A gulag near you.
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Quote:
Quote:
I believe Larry Shephard does that, he may have the bearing
Yes. Larry Shephard makes them. Nice product. Bottom side of the gear is machined to accept the torrington. I use them in all my engines.
Is there something that goes on top of the bushing for the bearing to ride on. ?
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: JohnRR]
#958083
03/25/11 05:08 PM
03/25/11 05:08 PM
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Joined: Jan 2003
Posts: 9,944
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,944
Weddington, N.C.
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Wow, A couple things come to mind. The majority of the friction is really at the base of the oil pump drive, the Dizz is really going along for the ride. To me Larry's bushing is more about taking out the slack and wobble than it is the friction an that can be done with a lock color. The OP/Dizz only turn 1/2 the crank speed, the drag of the dizz is paltry compared to the OP and the sum of 5 cam bearings, not to mention the friction of the valvetrain. It couldn't hurt, but again the lateral (UP & DOWN) slop in hte dizz shaft is more the culprit of erratic timing than the shaft inertia.
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Streetwize]
#958084
03/26/11 12:21 PM
03/26/11 12:21 PM
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Joined: Aug 2003
Posts: 43,882
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,882
Bend,OR USA
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Quote:
Wow,
A couple things come to mind.
The majority of the friction is really at the base of the oil pump drive, the Dizz is really going along for the ride. To me Larry's bushing is more about taking out the slack and wobble than it is the friction an that can be done with a lock color.
The OP/Dizz only turn 1/2 the crank speed, the drag of the dizz is paltry compared to the OP and the sum of 5 cam bearings, not to mention the friction of the valvetrain.
It couldn't hurt, but again the lateral (UP & DOWN) slop in hte dizz shaft is more the culprit of erratic timing than the shaft inertia.
 When, in the dark ages a long time ago,distributoors used dual points with a lot of tension on the distributor shafts a needel bearing help a tiny bit, with todays distributors with magnetic or optic sensors there are no lateral loads on the shafts a torrington bearings is not needed, don't do it  It is a waste of money and there is no gain  Buy a distributor shaft collar to limit the up and down movement of the distributor shaft and set it up correctly for .003 to .010 end play 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Streetwize]
#958087
03/26/11 09:01 PM
03/26/11 09:01 PM
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Joined: Oct 2005
Posts: 9,096
Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 9,096
Ontario, Canada
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Quote:
That's pretty much my take on it too, a torrington is usually to take up slack first (as in the fore and aft of a camshaft) and reduced friction is an added benefit second.
Even in the cam situation, a torrington is not used "to take up slack" - that's what spacers or washers are for. A bearing is a bearing - the purpose being to reduce friction. Any torrington used behind a cam is used to reduce the friction between the cam sprocket and the block - PERIOD.
As for the wear on the oil pump drive bushing or the gear, that is understandable. Whenever you have two "similar" metals wearing against each other, they will either fuse or wear. Its why you don't run a standard gear with a roller cam - both are steel. So, running the bronze gear against the bronze bushing, something is going to wear (look closely at used bronze gears at swapmeets - usually they've got grooves worn in the bottom). There are two solutions. One is an aluminum (?) bushing (which I've only seen in old motor kits from Mopar Performance). The other is a thin machine spacer between the bronze gear and the bushing. In fact, one of these spacers is the same as is used one either side of the torrington and they can be bought separately at any bearing supply place.
And if the OP is still gung-ho on installing the torrington, thats where to get it too!
And on that note, depending on the manufacturer, torringtons are made with either metal or plastic cages holding the rollers. I'd be going with the metal one. I wouldn't want any risk of the plastic one breaking and having the rollers flying around inside my motor.
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Stanton]
#958088
03/26/11 09:50 PM
03/26/11 09:50 PM
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Joined: Jan 2003
Posts: 9,944
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,944
Weddington, N.C.
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Beg to differ but often a torrigton bearing can be used in the place of a spacer, bushing or thrust washer where a bearing is not neccesarily or specifically required.
A pilot bushing on a trans input shaft is a good example of an 'upgrade', that may or may not be necessary.
Last edited by Streetwize; 03/26/11 11:05 PM.
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Re: Torrington Roller Thrust bearing for distributor gear?
[Re: Streetwize]
#958089
03/26/11 10:01 PM
03/26/11 10:01 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Damn ... and here I thought those bushings would last at least 150,000 miles.... maybe I am just lucky with my street engines... thats all on run on my so called race engines... but maybe I should go to the bearing and maybe I can pick up another 30hp.... its a bummer that my currant engine doesnt run one
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