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Re: Distributor phasing is a good idea
[Re: BDW]
#312395
05/10/09 07:34 AM
05/10/09 07:34 AM
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Joined: Jul 2007
Posts: 531
Virginia
JimG
mopar
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mopar
Joined: Jul 2007
Posts: 531
Virginia
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Quote:
Good explanation, what do you do to adjust an electronic distributor if needed? If filing is not enough.
You convince AndyF to make some more of those cool adjustable reluctors!
Seriously, I don't know - that's why I fixed mine the ghetto way by "moving" the locating tab. Perhaps someone else will elaborate.
Jim
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Re: Distributor phasing is a good idea
[Re: JimG]
#312396
05/10/09 08:09 AM
05/10/09 08:09 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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I still have one of Andys reluctors but after that I want to either redrill one on a drill press or look at altering the rotor/shaft groove/tang to shift the rotor or possibly rotating the flat plate on the inside by widening the groove the locating pin sets it at & widening the 2 holes on the housing outside where the 2 screws secure/locate the plate & seeing how(if) that affects the mounting of the vac adv.
live every 24 hour block of time like it's your last day on earth
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Re: Distributor phasing is a good idea
[Re: RapidRobert]
#312397
05/10/09 08:31 AM
05/10/09 08:31 AM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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It's always a good idea to pay close attention to things. I've also found issues like this on MSD billets. Reading those spark marks ont eh terminals is the easiest way. On the MSD, I filed away some of the alignment pins on the rotor to positin it to be centered on the cap terminal when it should be. I dont believe it is near as common as stated. But when it's bad enough to cause a problem, it needs to be corrected.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Distributor phasing is a good idea
[Re: ThermoQuad]
#312401
05/10/09 11:24 AM
05/10/09 11:24 AM
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Joined: Aug 2007
Posts: 6,095
Valencia, España
NachoRT74
master
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master
Joined: Aug 2007
Posts: 6,095
Valencia, España
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ok, so if I get an original new piece ( in My case MP distributor ) and using the right reluctor position ( already come from factory assemblied on the right phase location ) STILL there is not guarantee the dist is phased ?
With a Charger born in Chrysler assembly plant in Valencia, Venezuela
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Re: Distributor phasing is a good idea
[Re: ThermoQuad]
#312405
05/10/09 10:07 PM
05/10/09 10:07 PM
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Joined: Jul 2003
Posts: 2,637
Western Michigan
68Fastback
master
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master
Joined: Jul 2003
Posts: 2,637
Western Michigan
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Quote:
Alignment can be also be done on the bench using an old cap with holes drilled in it. Line up the reluctor with the pickup and look thru the spark plug wire hole to see if the alignment is correct
Or align rotor with spark plug hole, remove cap and check reluctor to pick up alignment
The vac adv plays an important part in where the "zero" position of the pickup ends up. Many times shimming the vac adv away from the housing quickly corrects any offset. You can also shorten the length of the arm on the vac adv as well if you are creative enough. Typically you will need to space the canister away from the dist body or shorten the arm length to correct any misalignments.
Again I will emphasize how much better any car runs with a phased distributor.
The pic shows the typical misalignment
Tom looks like you have the distributor in a vise, I see the misalignment on the reluctor but I am lost from there, can you please explain what I should be seeing.
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Re: Distributor phasing is a good idea
[Re: ThermoQuad]
#312407
05/11/09 07:41 AM
05/11/09 07:41 AM
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Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
David_in_St_Croi
top fuel
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top fuel
Joined: May 2003
Posts: 2,414
St. Croix, US Virgin Islands
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The reluctor in our MP distributor already had two grooves machined in it from the factory. DRAM explained to me how to check the phasing, using the hole in cap and timing light trick. It was definitely off on the 383 in our RR. I had removed it to change the pickup coil. I then switched the reluctor to the other slot and it was spot on and the car definitely runs smoother now. The difference was clear, both visually using the timing light and how well the car ran. It was not hard to do, you just need an old distributor cap to sacrifice. It explained the wear on one side of the terminal inside the old distributor cap, instead of the nice even wear shown in the first post.
If you have a MP distributor pull the rotor and look carefully, to see if it has two grooves. If the phasing is off try the other slot before doing anything more elaborate, you might get lucky.
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Re: Distributor phasing is a good idea
[Re: ThermoQuad]
#312408
05/11/09 08:36 AM
05/11/09 08:36 AM
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Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda
I Live Here
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I Live Here
Joined: Mar 2003
Posts: 15,478
the boonies
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Quote:
Alignment can be also be done on the bench using an old cap with holes drilled in it. Line up the reluctor with the pickup and look thru the spark plug wire hole to see if the alignment is correct
Or align rotor with spark plug hole, remove cap and check reluctor to pick up alignment
The vac adv plays an important part in where the "zero" position of the pickup ends up. Many times shimming the vac adv away from the housing quickly corrects any offset. You can also shorten the length of the arm on the vac adv as well if you are creative enough. Typically you will need to space the canister away from the dist body or shorten the arm length to correct any misalignments.
Again I will emphasize how much better any car runs with a phased distributor.
The pic shows the typical misalignment
let me ask- this picture shows a misalignment at idle. but, when the distributor starts advancing, the pickup will move counterclockwise and brign the misalignment back into alignment, won't it? so the net effect would be proper rotor phasing at higher rpm where its more important.
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Re: Distributor phasing is a good idea
[Re: aarcuda]
#312410
05/11/09 10:51 AM
05/11/09 10:51 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Not only that, but a lot of you are using a seperate "sacrificial" cap to check the alignment. How do you know this cap has the terminals and sits on the distributor the same way as the cap that you run with?!  When phasing a street car do you split the difference between idle and full advance, optimize it at full advance or optimize it at idle? 
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Re: Distributor phasing is a good idea
[Re: David_in_St_Croi]
#312413
05/11/09 11:19 AM
05/11/09 11:19 AM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
The reluctor in our MP distributor already had two grooves machined in it from the factory. DRAM explained to me how to check the phasing, using the hole in cap and timing light trick. It was definitely off on the 383 in our RR. I had removed it to change the pickup coil. I then switched the reluctor to the other slot and it was spot on and the car definitely runs smoother now. The difference was clear, both visually using the timing light and how well the car ran. It was not hard to do, you just need an old distributor cap to sacrifice. It explained the wear on one side of the terminal inside the old distributor cap, instead of the nice even wear shown in the first post.
If you have a MP distributor pull the rotor and look carefully, to see if it has two grooves. If the phasing is off try the other slot before doing anything more elaborate, you might get lucky.
I had an annoying only-at-idle misfire that completely disappeared when moving the reluctor wheel to the other position.
The MP wheel has 2 slots but they are not 180° apart, there's a small offset.
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Re: Distributor phasing is a good idea
[Re: CJK440]
#312414
05/11/09 12:02 PM
05/11/09 12:02 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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[quote the timing light a more definative test???
No reason not to drill a hole BETWEEN the center and #1 terminals & check it at speed. the hole can stay & is actually better as it lets ionized air escape out of there(The ionized air makes it easier to crossfire) an example would be the space under a tree that would get hit on top by lightning which electrically charges not only the tree but the air space under the branches & everything in that ionized air space gets jolted.
live every 24 hour block of time like it's your last day on earth
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