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Author Topic:   Distributor ??
Fastymz
Moderator

Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 05-30-2002 03:01 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Have any of you got a reman,or rebuilt distributor from AutoZone.They one there that looked good for 39.99 with vac can and all.Besides getting one for a my 351w is there anything else I should look for,like are all the vac advance the same,and what about the gear,should I reuse my old one,or use the one that comes with it.I know little to nothing about Distibutors so please help me here.
I know the one I'm using now has play in the shaft both up and down play and left to right play.I also checked my vac,advance and it's not working?
I like the price but I dont want to a junk in the car either.
I use the pretronix unit now so I'll just put that in the new.

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65 coupe,351w,C4,Big Boss 429 hood scoop,Crager SS,Black Suede.

Is that your scoop,or are just happy to see me.

https://mustangsandmore.com/ubb/Fastymz.html

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Buster
Gearhead

Posts: 780
From: Orlando
Registered: May 2002

posted 05-30-2002 06:34 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
Is this for your 65 coupe?
Is this a daily driver?
Is it points or electronic ignition?

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Fastymz
Moderator

Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 05-30-2002 06:48 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Yes it's for my 65,and mostly a just a for fun driver,would like to start racing it a couple times a Mo.

SCOOP

------------------
65 coupe,351w,C4,Big Boss 429 hood scoop,Crager SS,Black Suede.

Is that your scoop,or are just happy to see me.

https://mustangsandmore.com/ubb/Fastymz.html

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capri man
Gearhead

Posts: 3385
From: doerun, ga.
Registered: Nov 2000

posted 05-30-2002 08:00 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
that dist. should be fine. the gear should be fine unless you have a roller cam.

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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Fastymz
Moderator

Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 05-30-2002 08:04 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by capri man:
that dist. should be fine. the gear should be fine unless you have a roller cam.


Do they make different gears,beside for a roller or not?
Like the amount of teeth do they change.
I think my cam rolls,I hope it's not flat.

SCOOP

------------------
65 coupe,351w,C4,Big Boss 429 hood scoop,Crager SS,Black Suede.

Is that your scoop,or are just happy to see me.

https://mustangsandmore.com/ubb/Fastymz.html

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capri man
Gearhead

Posts: 3385
From: doerun, ga.
Registered: Nov 2000

posted 05-30-2002 09:04 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
the number of teeth are all the same!! i think i think mine rolls too, but i am not sure. where is alex when you need him???

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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Larry Jennings
Gearhead

Posts: 540
From: Redwood City, Ca. USA
Registered: Apr 2000

posted 05-30-2002 09:23 PM     Click Here to See the Profile for Larry Jennings   Click Here to Email Larry Jennings     Edit/Delete Message   Reply w/Quote
Alex is out rollin his cam right now

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Whenever I feel blue I start breathing again!

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Buster
Gearhead

Posts: 780
From: Orlando
Registered: May 2002

posted 05-30-2002 11:31 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
Is it points or electronic ignition?

>edit< and do you care about gas mileage?

[This message has been edited by Buster (edited 05-30-2002).]

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bluestreek
Gearhead

Posts: 1289
From: Athens,GA
Registered: Jul 2001

posted 05-31-2002 11:22 AM     Click Here to See the Profile for bluestreek   Click Here to Email bluestreek     Edit/Delete Message   Reply w/Quote
Steel Roller cams (solid or hydraulic) require rollerized lifters, and a bronze or steel dist. gear. Flat tappet cams (solid or hyd.) and some street roller cams (Comp Cams street roller) are iron and will use a stock cast iron gear. The difference is not so much in the in the number of teeth, but in the way 2 types of metal will wear against each other.

You should know if you have a true roller cam or not because of the roller wheel on the bottom of your lifters.

BS

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Fastymz
Moderator

Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 05-31-2002 12:39 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by bluestreek:
Steel Roller cams (solid or hydraulic) require rollerized lifters, and a bronze or steel dist. gear. Flat tappet cams (solid or hyd.) and some street roller cams (Comp Cams street roller) are iron and will use a stock cast iron gear. The difference is not so much in the in the number of teeth, but in the way 2 types of metal will wear against each other.

You should know if you have a true roller cam or not because of the roller wheel on the bottom of your lifters.

BS


Thanks I know I dont have a roller cam.It's all stock that I know of.Thanks for the info,sorry I'm such a smart *** most of the time.


Buster,
it's a electronic ignition,by Pertronix add in kit.I was going to get another stock rebuilt dist,and put my same pertronix kit in it too.
And gas milage is not that big of a deal.

SCOOP

------------------
65 coupe,351w,C4,Big Boss 429 hood scoop,Crager SS,Black Suede.

Is that your scoop,or are just happy to see me.

https://mustangsandmore.com/ubb/Fastymz.html

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capri man
Gearhead

Posts: 3385
From: doerun, ga.
Registered: Nov 2000

posted 05-31-2002 01:52 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
quote by SCOOP:
"sorry I'm such a smart *** most of the time."

surely not you scoop!!!!! hee hee

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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Buster
Gearhead

Posts: 780
From: Orlando
Registered: May 2002

posted 06-01-2002 12:17 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
Are you using a point distributor with that kit? Either way, you can remove the breaker plate and see the mechanical advance. See what the number is, if one side stamped 8 then it will give you 16 deg total mechanical, so what ever the number is multiply by 2.

It will have two sides on the advance limiter, one with more advance and one with less. This part can be removed turned 180 to add or subtract total mechanical advance. There is a clip in the center of the shaft that the rotor sits on to remove the upper shaft. The upper shaft is part of the advance limiter and has springs to limit how soon you get total mechanical advance.

The lighter the spring is the sooner you will get total mechanical advance. Most speed shops sell the spring kits and they are very cheap. I try to get total mechanical advance in by 2500 rpm. So, If the distributor you have now has the advance your looking for, then use it in the new distributor or vice versa.

Adjust the mechanical advance this way:

Say your base timing is set at 10 deg. Watch your timing while you increase the engine rpm, with the vacuum advance disconnected. So, lets say your mechanical limiter is stamped 8, that will give you a total of 16 deg mechanical advance. See what rpm you get Base + Mechanical for a total of 26 deg. Change the springs to get it close to the 2500 mark.

The vacuum advance is the same, multiply the stamped number by 2. Also, if it's a MotorCraft vacuum advance, it will have a allen set screw in the vacuum hole, so you can adjust it. Be careful not to back the set screw out too far.... Once it gets hard to turn, STOP.

Adjust the Vacuum Advance this way:

With the engine idling, use a vacuum pump and apply full vacuum to the advance. If you don't have a vacuum pump then use manifold vacuum. Subtract the base amount of advance from the total, base - total = total vacuum advance. To reduce vacuum advance back the screw out. Be careful not to back the set screw out too far.... Once it gets hard to turn, STOP!

Example: Total, at idle full vacuum, is (26) - Base (10) = Vacuum advance (16)

Some after-market vacuum advances are adjustable as well. So, when your looking for a distributor, look for these things.

This is the way I setup a distributor for a street/strip distributor wo/EGR:

Base timing around 10 - 14 deg
Mechanical advance 16 - 18 deg
Vacuum advance 12 - 16 deg

So, your total timing, at cruse, would be from 38 to 48. How much total timing you set it for is going to depend on the fuel you use. I have gone as high as 48 with Amoco 97. These are base line numbers, a starting point. If your engine has a ping when you TIP IN, like if your on the highway and crown a hill apx 1/8 to 1/3 throttle, then back off the vacuum advance. If your engine pings under WOT, wide open throttle, the back off the base timing. I always try to get max timing, when it starts to ping... then back it down.

Under full throttle you will loose most if not all of your vacuum advance and that will decrease your total timing to around 26 to 32, depending on your setup. If your going to take it to the track, then disconnect the vacuum advance and bump up the base timing to get what ever works for you current setup.

Setup this way will give you very good throttle response and increase your gas mileage without hurting performance.

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capri man
Gearhead

Posts: 3385
From: doerun, ga.
Registered: Nov 2000

posted 06-01-2002 12:33 PM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
thanks buster, that was very informative. hey SCOOP you and i need to print this out to have for future reference!! hee hee

------------------
mike r
racing is real
everything else is just a game.
81 capri-7.56 @88mph 1/8
1.56 60 ft.
http://prestage.com/site/site_display.asp?SiteID=141

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Fastymz
Moderator

Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 06-01-2002 01:22 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Thanks Buster,I'll print that for sure.

Right now I ran my car at 16 base,and it jumps to 28-30 at 2800-3000rpm,with or with out the vacuum advanced hooked up.

SCOOP

------------------
65 coupe,351w,C4,Big Boss 429 hood scoop,Crager SS,Black Suede.

Is that your scoop,or are just happy to see me.

https://mustangsandmore.com/ubb/Fastymz.html

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Buster
Gearhead

Posts: 780
From: Orlando
Registered: May 2002

posted 06-01-2002 02:10 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
It sounds like you are getting 12 to 14 deg mechanical advance, good range for a street/strip setup.

If you get a reman distributor, make sure it has an adjustable vacuum advance and stamped between 6 to 8.

Then I would back your base timing down.

Remember that you will have base plus the vacuum advance at idle. btw, run manifold vacuum to the advance.

So, that would put you between base 10 (+ -) and vacuum advance 12 to 16 for a total of 22 to 26 at idle. That will give you a very strong idle.

Having less base will help starting the engine when hot.

[This message has been edited by Buster (edited 06-01-2002).]

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Buster
Gearhead

Posts: 780
From: Orlando
Registered: May 2002

posted 07-11-2002 09:36 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
Scoop bump

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