Moparchat - Home of MOPAR enthusiasts worldwide!



Go Back   Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > Performance Talk

Click here to search for Mopar cars and parts for sale.


Reply
 
Thread Tools Display Modes
  #1  
Old 12-17-2008, 10:45 PM
mopower04's Avatar
mopower04 mopower04 is offline
Inactive User
 
Join Date: Feb 2006
Location: Menominee/Michigan
Age: 38
Posts: 342
Lightbulb dist. drive gear/shaft

so with my 440... whats the deal with these hardend or bronze drive and regular gears for the dist. to oil pump drive. high volume oil pumps require hardend shafts and all that stuff and roller cams need the bronze and hydraulics dont? what am i looking for on a high volume oil pump hydraulic cam setup? bronze gear or not? wheres a good place to pick up the correct item?
Reply With Quote
  #2  
Old 12-17-2008, 11:32 PM
Dick's Avatar
Dick Dick is offline
Registered User
 
Join Date: Oct 2001
Location: Western NH
Age: 80
Posts: 8,880
Biggrin

http://www.440source.com/ishafts.htm

Scroll down and read what they have to say.
Reply With Quote
  #3  
Old 12-18-2008, 11:43 AM
passing you passing you is offline
Banned
 
Join Date: Dec 2008
Location: ca
Posts: 731
Default

Hardened tip intermediate shaft is a good idea.
Only with billet roller cams do you need a bronze gear.
Unless your modifying the oiling system the HV pump is gonna eat up power to the tune of 25hp @ 6000rpm on your average 400-450hp motor.
Reply With Quote
  #4  
Old 12-18-2008, 08:51 PM
valiant64 valiant64 is offline
Inactive User
 
Join Date: May 2007
Location: Ridgecrest,Ca.
Posts: 885
Default

Get the MP hardened tip dist. drive. If you wanna run the hv pump regardless if you need it or not, don't use the stock dist. drive, as it can & eventually will shear the tip off & you will have no oil pressure. Been there & done it. Mancini racing, Summit, Jegs, or your local Chrysler dealer can get the hardened dist. drive. The MP part # is 3571071.
Reply With Quote
  #5  
Old 12-19-2008, 12:04 PM
dwc43's Avatar
dwc43 dwc43 is offline
Banned
 
Join Date: Sep 2002
Location: Shelbyville,Tn.
Age: 54
Posts: 23,987
Biggrin

If you don't use the hardened tip shaft on a high volume pump it will break within minutes of start up.
Reply With Quote
  #6  
Old 12-19-2008, 04:36 PM
43 purestock 43 purestock is offline
Inactive User
 
Join Date: Dec 2005
Location: N.C.
Posts: 394
Default

Quote:
Originally Posted by dwc43 View Post
If you don't use the hardened tip shaft on a high volume pump it will break within minutes of start up.
Thats funny, I have a regular old shaft in my oval track 360, I have 5 full nights on it, and it didnt break off. A hardend tip shaft IS A GOOD IDEA, but your blanket statement is misleading.
Reply With Quote
  #7  
Old 12-19-2008, 06:05 PM
John Kunkel John Kunkel is offline
Registered User
 
Join Date: Nov 2001
Location: NorCal
Age: 80
Posts: 10,059
Default

The "hardened" tip is a misnomer, the stock shaft has a hardened tip too; the performance shaft has a radius where the round shaft transitions to hex while the stock shaft has a sharp cut which is the common failure point.
Attached Images
File Type: jpg OP Shaft ends.jpg (81.9 KB, 11 views)
Reply With Quote
  #8  
Old 12-19-2008, 06:16 PM
rumblefish360's Avatar
rumblefish360 rumblefish360 is offline
Moparchat Bronze member
 
Join Date: May 2000
Location: C
Age: 57
Posts: 11,120
Default

Quote:
Originally Posted by 43 purestock View Post
Thats funny, I have a regular old shaft in my oval track 360, I have 5 full nights on it, and it didnt break off. A hardend tip shaft IS A GOOD IDEA, but your blanket statement is misleading.
LOL I agree. My regular shaft has been going well for 15 years now.
Reply With Quote
  #9  
Old 12-19-2008, 07:37 PM
Dick's Avatar
Dick Dick is offline
Registered User
 
Join Date: Oct 2001
Location: Western NH
Age: 80
Posts: 8,880
Biggrin

We're all happy for you, Rumble.
May you get another 15 out of it before you need the blue pill.
Reply With Quote
  #10  
Old 12-20-2008, 03:05 PM
dwc43's Avatar
dwc43 dwc43 is offline
Banned
 
Join Date: Sep 2002
Location: Shelbyville,Tn.
Age: 54
Posts: 23,987
Biggrin

Quote:
Originally Posted by 43 purestock View Post
Thats funny, I have a regular old shaft in my oval track 360, I have 5 full nights on it, and it didnt break off. A hardend tip shaft IS A GOOD IDEA, but your blanket statement is misleading.
You have been lucky, just wait till the next time. And it's not a blanket statement. It's directions and warnings from Mopar Performance along with experience from two broken shafts many years ago.
Reply With Quote
  #11  
Old 12-20-2008, 06:37 PM
valiant64 valiant64 is offline
Inactive User
 
Join Date: May 2007
Location: Ridgecrest,Ca.
Posts: 885
Default

I don't believe that using the stock dist. drive will necessarily result in instant failure when used with the HV pump, but it will eventually break. I've never broken one when used with the stock pump even @ high rpms, but even @ under 6k rpm it can fail when used with the HV pump. The one I broke happened during low speed in town driving while slowing upon approaching a stop sign. Luckily, my house was on the other side of the intersection so there was no further harm done. I got another stock dist. drive (used), and installed a stock oil pump and never had an oiling related problem even when using the car as a weekend bracket car. Unless you plan on seeing over 6,500 rpm on a regular basis, the stock oil system works just fine on BB Mopars. A good oil pan with baffling, 5-6qt capacity & a windage tray works well in most cases when used with the stock pump in these applications.
Reply With Quote
  #12  
Old 12-20-2008, 06:49 PM
mopower04's Avatar
mopower04 mopower04 is offline
Inactive User
 
Join Date: Feb 2006
Location: Menominee/Michigan
Age: 38
Posts: 342
Default

so one more thing about the drive. I found them on 440 source.com and they have a drive that says is pinned to the shaft, then down the page there is and other one from melling that does not appear to have a pin. any advantage to pins or not? both of those are hardend and are recommended with HV pumps
Reply With Quote
  #13  
Old 12-21-2008, 03:35 AM
passing you passing you is offline
Banned
 
Join Date: Dec 2008
Location: ca
Posts: 731
Default

The gear is pressed to the shaft hence the pin to keep it from spinning loose.
Reply With Quote
  #14  
Old 12-21-2008, 09:59 PM
mopower04's Avatar
mopower04 mopower04 is offline
Inactive User
 
Join Date: Feb 2006
Location: Menominee/Michigan
Age: 38
Posts: 342
Default

got it. so pinned is the way to go!
Reply With Quote
  #15  
Old 12-22-2008, 11:45 AM
passing you passing you is offline
Banned
 
Join Date: Dec 2008
Location: ca
Posts: 731
Default

For me it is, of corse I'm reving 7000rpm a lot.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
oil pump/dist drive gear Stryke Performance Talk 16 11-22-2004 08:37 AM
Bb Msd Dist,gear Drive,race Rear wedge542 Rear Wheel Drive - Parts for Sale 0 03-27-2001 11:26 PM
gear drive vs. chain drive powerwagon Performance Talk 9 02-12-2001 04:25 AM
89 2.5turbo dist.gear position wvmopar Front Wheel Drive Chat 1 10-17-2000 03:04 AM
bronze dist. gear question. moparking Performance Talk 6 07-05-2000 08:13 PM




All times are GMT -4. The time now is 08:58 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
. . . . .