dist. drive gear depth issue.
#2537309
08/16/18 06:42 PM
08/16/18 06:42 PM
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Joined: Jun 2012
Posts: 1,899 MYRTLE BEACH SOUTH CAROLINA
ek3
OP
top fuel
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OP
top fuel
Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
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I have a 440 -6 engine with orig dual point dist. measures 3.90" from base to shaft tip @ bottom. it is only sitting about .080 " in the gear slot . there is around .300" in the gear . Is there any way to get that down in there to say .200" or so? it shows signs of riding on the edge of the shaft. I put in a new BRASS bushing . could that be in to far ? I don't see any room to drop it with dist. shims . if it is the shim , can I change that out without disassembly ?
Last edited by ek3; 08/16/18 06:43 PM.
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Re: dist. drive gear depth issue.
[Re: ek3]
#2537365
08/16/18 08:45 PM
08/16/18 08:45 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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4" is the std RB shaft length. You might weld/drill/tap the top of the intergear to add some material for the notch to engage. EDIT I just measured & it is 4&1/8"
Last edited by RapidRobert; 08/17/18 02:50 PM. Reason: made a mistake
live every 24 hour block of time like it's your last day on earth
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Re: dist. drive gear depth issue.
[Re: RapidRobert]
#2537385
08/16/18 09:26 PM
08/16/18 09:26 PM
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Joined: Jan 2003
Posts: 10,713 North Dakota
6PakBee
I Live Here
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I Live Here
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Posts: 10,713
North Dakota
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Distributor original to engine? Take a look at the wear pattern on the end of the distributor shaft tang. How far in was it running? But as to your problem, it sounds like either the bushing in the block is too far in, the machined surface in the block that controls the height of the bushing is too low, or the gear is defective.
I am assuming you don't have a SB dual point that measures about 3.875".
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: dist. drive gear depth issue.
[Re: lewtot184]
#2537414
08/16/18 10:59 PM
08/16/18 10:59 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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if the gear on the intermediate shaft isn't pinned it can be pressed a little further down the shaft effectively raising the slot. Not how that works. The gears are helically cut. This pushes the gear in one direction. Guess which way that is? Into the block where the bushing is. All messing with this is going to do is put the shaft deeper into the oil pump it won;t effectively raise the slot.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: dist. drive gear depth issue.
[Re: lewtot184]
#2537598
08/17/18 12:56 PM
08/17/18 12:56 PM
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Joined: Jan 2003
Posts: 10,713 North Dakota
6PakBee
I Live Here
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I Live Here
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Posts: 10,713
North Dakota
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you guys need to get your thinking caps on. the gears position is fixed in relation to the block and i'm not talking about moving the shaft/gear relationship a couple feet. use your gray matter,...if you have any. A bit brusque but accurate. Yes, the oil pump shaft engagement would decrease at the expense of increasing the distributor shaft engagement. The position of the gear remains fixed. What bothers me about situations like this is that out of the millions of B and RB made, why would this be necessary on this particular motor and none of the others? Moving the shaft would work but is this masking a more serious problem? Is this just a band-aid for something else?
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: dist. drive gear depth issue.
[Re: 6PakBee]
#2537665
08/17/18 02:50 PM
08/17/18 02:50 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I just measured my RB points dist & it is 4&1/8 not 4" like I posted earlier. For you to run the dual points & see how it performed (I hear they weren't no slouch back in the day) & it would be interesting, I wonder if you could pirate a lower shaft from a single points dist to get this resolved???
live every 24 hour block of time like it's your last day on earth
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Re: dist. drive gear depth issue.
[Re: RapidRobert]
#2537677
08/17/18 03:08 PM
08/17/18 03:08 PM
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Joined: Jan 2003
Posts: 25,785 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
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The RB shaft length is 4.00", the B shaft is 3.50".
The LA is 3.875" so the OP probably has a SB distributor.
The INTERNET, the MISinformation superhighway
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Re: dist. drive gear depth issue.
[Re: ek3]
#2538348
08/19/18 12:40 AM
08/19/18 12:40 AM
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Joined: Mar 2008
Posts: 9,550 Sacramento CA
Morty426
master
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master
Joined: Mar 2008
Posts: 9,550
Sacramento CA
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thanks everyone ! I will figure it out .. I can tell you why this one is different from all the millions of them - its my luck - !! really glad for all the input . sometimes you really scratch your head over this stuff....at least I found it before it was two problems ! And what was it?
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Re: dist. drive gear depth issue.
[Re: ek3]
#2539400
08/21/18 01:40 AM
08/21/18 01:40 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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^^^ that's good to hear. I think you needed some good news!
live every 24 hour block of time like it's your last day on earth
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