dist shaft
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 1,179
Likes: 100
From: cranford nj
dist shaft
Been awhile since any posts. I've been out of work all summer so money was tight. Now that I'm working I can spend some money. How hard is it to replace the dist shaft on a stock gm dist in a 71 sb.Gerry
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Pretty straight forward. Remove the tach drive stuff by unscrewing the piece the cable attached to. Then, knock the roll pin out of the drive gear with a small drift and pull the gear off. Pull the shaft out. Don't loose the spacer washers and make sure you set it up with the proper end play.
Melting Slicks
Joined: Nov 2001
Posts: 2,668
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From: Eastern US XX
Team Owner
Joined: Apr 2002
Posts: 62,198
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From: All humans are vermin in the eyes of Guru VA
Cruise-In IV Veteran
Cruise-In V Veteran
See if you need a new shaft or maybe new bushings. Probably going to want to replace the bushings anyway. Just get some new bushings and the tool.
Team Owner
Joined: Jan 2006
Posts: 37,637
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From: Crossville TN
The bushings in the housing bore should wear before the [hardened steel] shaft would have any wear problems. If the shaft is damaged, then replace it...if not, replace the bushings and any other worn components.
Advanced
Joined: Mar 2004
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From: Hayward Ca
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Team Owner
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From: Crossville TN
Mikef714.... I've not heard the term "phasing", but the dist. drive gear has an ODD number of teeth [11 teeth], so when you install the gear 180 deg from original design, the timing will be off by about 15 deg [1/2 of a gear tooth] from where you left it. If that's "out of phase", so be it.
Advanced
Joined: Mar 2004
Posts: 85
Likes: 1
From: Hayward Ca
Mikef714.... I've not heard the term "phasing", but the dist. drive gear has an ODD number of teeth [11 teeth], so when you install the gear 180 deg from original design, the timing will be off by about 15 deg [1/2 of a gear tooth] from where you left it. If that's "out of phase", so be it.
Le Mans Master
Joined: Jul 1999
Posts: 9,206
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From: Sewell NJ
This is from MSD's website
ROTOR PHASING
Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark occurs. This position can be very important to your engine's performance. If the alignment is incorrect, the spark will jump to the next closest terminal or another ground resulting in a misfire and loss of power.Since the timing is going to be controlled
Rotor Phasing is defined as the alignment between the rotor tip and the distributor cap terminal when the spark occurs. This position can be very important to your engine's performance. If the alignment is incorrect, the spark will jump to the next closest terminal or another ground resulting in a misfire and loss of power.Since the timing is going to be controlled