Re: yes another bronze distributor drive question ...
[Re: JohnRR]
#1184981
02/23/12 05:51 PM
02/23/12 05:51 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Sure, buy a good USA-made gear and reuse your existing shaft if possible. FWIW, I haven't taken any decent pictures of my 440 Source bronze-gear distributor drive vs. my comparable MP piece, but giving them both a close-up inspection shows the MP piece is simply machined better. The 440 Source piece might hold up as well, but it's definitely a cheaper part from a manufacturing perspective. One of the differences is the teeth of the two gears are cut differently and I'm suspecting that would result in them meshing differently with the cam gear. Whether that results in different wear characteristics I can only guess about without some type of controlled tests. 
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Re: yes another bronze distributor drive question ...
[Re: rickraw]
#1184984
02/23/12 07:07 PM
02/23/12 07:07 PM
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Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
dusturbd340W5
master
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master
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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It seems like there was a post here not long ago about crane having a new type of gear.
70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
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Re: yes another bronze distributor drive question ...
[Re: BradH]
#1184985
02/24/12 03:12 AM
02/24/12 03:12 AM
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Joined: Jul 2005
Posts: 384
Australia
Mcode69
enthusiast
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enthusiast
Joined: Jul 2005
Posts: 384
Australia
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Quote:
Sure, buy a good USA-made gear and reuse your existing shaft if possible.
FWIW, I haven't taken any decent pictures of my 440 Source bronze-gear distributor drive vs. my comparable MP piece, but giving them both a close-up inspection shows the MP piece is simply machined better. The 440 Source piece might hold up as well, but it's definitely a cheaper part from a manufacturing perspective.
One of the differences is the teeth of the two gears are cut differently and I'm suspecting that would result in them meshing differently with the cam gear. Whether that results in different wear characteristics I can only guess about without some type of controlled tests.
Before you stick it in your engine trial fit your dissy in it, every one I have seen needs to be reworked so the tip if the dissy shaft will fit. Its usually easier to file the dissy shaft than trying to open up the gear. you'll probably need to file a V across the top of the gear as well to clear the 'cheeks' on the tip of the shaft. Hope this helps!
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Re: yes another bronze distributor drive question ...
[Re: BigBlockMopar]
#1184987
02/24/12 02:37 PM
02/24/12 02:37 PM
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Joined: Mar 2007
Posts: 3,287
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,287
West Coast, USA
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Using a lock collar on the distributor shaft helped reduce wear on mine pretty significantly.
Has anyone tried cryogenically treating the gear to extend the it's life?
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: yes another bronze distributor drive question ...
[Re: JohnRR]
#1184989
02/24/12 04:27 PM
02/24/12 04:27 PM
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules
I'm neurotic
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I'm neurotic
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
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Quote:
Which to use , prices are all over the map ? should I just buy a COMP gear and put it on my hardened MP shaft ? that would be the most economical route ?
I saw a cheap chinese junk Cat for $9.09 ... 
My question is how do you keep the gear from rotating while your pressing it on and how do you control the depth (so that the hole in the gear lines up with hole in the shaft so you can get the pin back in?)
I've always bit the bullet and bought the whole assembly from Milodon (and yes it is expensive).
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Re: yes another bronze distributor drive question ...
[Re: JohnRR]
#1184990
02/24/12 05:22 PM
02/24/12 05:22 PM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I put a bronze gear on my mp hardened shaft. I just tapped it on and put a roll pin in it. Been on there for a couple years and the gear still looks like the day I put it in.
67' charger 499 RB
10.57 at 127
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I am sure it will be fine. 