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1971 429cj vacuum adjustable advance part?


Anderslober
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A07_F2_B81_908_B_467_C_A64_C_15_AE5484_A40_D.jpg

 

Hello Forum......my (friggin`amazing awesomely fantastical) 429cj was at pre-summer service recently. All was A-ok.......except the vacuum advance on the distributor. It needs to be replaced.

 

Could someone point me in the direction towards a high quality part. I have have surfed a lot, but I am unable to make a final decision on the part.

 

I think it needs to be `single port and adjustable`..........

 

I just dont want to buy the wrong part......

 

Thanks.

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I will not be into town for a few days but will check with the parts house that I got the 351 C thermostats from and see if they have NOS on the shelf. The parts house closed like 25 years ago and they are selling the NOS inventory now.

There was a kit from Ford back when new to eliminate the vacuum advance and be centrifugal. I put one of the kits on my 73 351 C Q code when new. You left the vacuum motor there you just cut the arm off of it. You adjusted the advance by using different strength springs that came in the kit. It was also dual points. It required changing the cam or center shaft in the distributor and the plate and points but was in kit.

I am sure you would never find one, lol.

David

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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Ok got by the closed up parts house this afternoon. Good news is they have them but there are 7 different ones listed. Need number off of the distributor to get the correct one. The parts book grouped all of the 429 engines together, T-bird, Torino, Mustang etc. I am betting it is the D1AF-NA. Here are the ones listed in the parts book and this is not a Ford parts book NAPA store if I remember right.

C8AF-AD

C8VF-C

C9AF-Y

DOAF-Z

DOOF-Y

D1AF-NA

C8VF-A

Let me know what the number is and I can get a price.

The NA change at the end means that went through the alphabet 13 times for engineering changes. They started with A went through the alphabet then went to two letters. AA, AB, etc. to get to NA. That would be 312 Engineering changes am I seeing that correct? If Ford did like other numbers they left off the I and l so they would not be seen as numbers.

Thanks,

David

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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This page should help. looks like it depends on if he has the C6 or 4 speed car.

 

http://429mustangcougarinfo.50megs.com/ignition.htm

 

Edit...

Looked back at an old thread. It is a 4 speed car so it should be the dual point distributor making it the D0OF I believe.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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Once I hear back I will find out how much they are and brand. If any other BB guys wants one I can get if you want.

I got a 351 C water pump the other day might check on the 429 and see if they have. I will also check casting # I know nobody will want unless 71.

 

David

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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Wow....awesome. Yes...it is a 4sp car. The mentioned website is an absolute treasure trove of technical information for 429´ers. Amazing site. Who runs it? I have tried quite a few times to contact the fellow over a period of near,y 2 yeats now.

 

The advance unit on the website doesnt look anything like the unit on my car now. Maybe the original has been changed at some point.

 

I am VERY interested in purchasing a correct vacuum advance for my car. 1971 429cj ram air 4sp. Please get in touch. Thanks

 

I am 10000km away from the car now, and cant check the distributor..........can you gleen anything from the initial picture? Definitely Autolite cap.....

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I would personally wait until you can get a look at the numbers on your distributor. It is hard to tell from your pic and comparing to the 429 site, but the casting on your distributor looks different, so you may not have the original correct distributor.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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I will get you a price tomorrow. If you do want it I will take a vacuum pump with me and check that it is good before purchase. If you want two would make sense to ship both. I can do Export papers as gift I believe and no duties. I have sent to Africa several times.

They are not going anywhere so no hurry very few know about this place and lots of rare parts there.

Cheers,

 

David

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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Please see pictures below.....both are pictures of my engine. On the upper picture the PVS is connected to the vacuum advance. On the lower the PVS lower tap is blocked of. The lower picture is a new picture. Is this normal? Is my vacuum advance connected at all??

 

I have seen many pictures of 429 engines, and it does seem the PVS needs to be connected to the advance unit.......is this correct? Thanks.

 

F51_D5_EC2_65_B0_408_B_BD14_15_A1_E1885_CFF.png

 

 

 

C39_EA8_D2_9_F53_4_AAA_A123_13_FD0376_CACB.jpg

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Where does the hose run to that is connected to the vacuum advance can? It appears that it is not connected. It may have been disconnected if the vacuum diaphragm has failed, leaving it connected would cause a vacuum leak.

You can find how yours should be connected here:

https://www.7173mustangs.com/thread-vacuum-hose-diagrams?pid=246021#pid246021

 

 

“If you can't explain it simply, you don't understand it well enough.”

--Albert Einstein

 

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David.....did you get any pricing info?

I may have to wait until end of May, as I won't see the car until then.

 

Let me know....

 

Thanks.

 

I need to know which one to get price. I will take a vacuum pump and check before purchase. Might just go get one for auto and one for manual sure I can sell.

David

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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David, I meant to get some info to your earlier, but have been under the weather this past week. Had a some sort of virus that put me as close to having the flu as you can get without actually having it!

The production installed distributor should be DOOF-AA. That is  cataloged as a dual port vacuum advance distributor. The vacuum advance is D1AZ-12370-A (Motorcraft DD-267) replaced by D2OZ-12370-J (Motorcraft DD-267-A). Since the business has been shut own for a while I'll assume they don't have a working computer/catalog system. I know at one time NAPA had a Ford to NAPA part number cross catalog, so he should be able to cross these numbers.

If....Anderslober wants to stay with the single port advance that can still be made to happen. I replaced the dual port advances on my 429 and 351 C's and they ran fine. Those were in the days when "Cleaning Up" under the hood was a rite of passage!  I ran one originally listed for a 72 460 and was later phased in on 73/ applications. Ford part number is D2VY-12370-B (Motorcraft is DD-341).

You were pretty close on the D1AF-NA. That is for 71 Police Interceptor, 71 Torino CJ AT, and 71 Mustang SCJ AT.

If you need any more numbers just let me know, I'm sure we can find some more to add to this alphabet soup!!     :D

Steve

 

No Officer...I really don't know how fast I was going, my speedometer stopped at 140!

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Apparently, my car has been converted to electronic ignition.....will I still need the parts??

 

 

Still need the vacuum advance even though you have electronic ignition. [emoji594]

 

 

Sent from my iPhone using Tapatalk

Steve

 

No Officer...I really don't know how fast I was going, my speedometer stopped at 140!

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David, here are some more numbers for you to check. These would apply to mwilson7's car. I found an error in the 65-72 MPC where it does not show a listing for the 71 429 CJ AT Mustang. I checked a earlier version of the MPC and the AMA listing and they both indicate the  D1AF-NA as the correct distributor. The original advance is C8AZ-12370-A (Motorcraft DD-236) replaced by D1AZ-12370-B (Motorcraft DD-628) replaced by D2PZ-12370-F (Motorcraft DD-259-A) These are all dual port advances and the DD-259-A should be the easiest to get since it was a service part from the mid 70's forward.

Steve

 

No Officer...I really don't know how fast I was going, my speedometer stopped at 140!

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  • 2 weeks later...

Anderslober,

I have a '71 Mach 1 with the 351c, I am not running the advance/retard unit as it originally was equipped with, rather, changed it out for a Non-California Ford distributor which has a single advance used in pre-smog cars. I believe the distributors used in both 351c's and 429/460 engines utilize the same fitting distributor. If you are not opposed to aftermarket parts, Standard Ignition offers a single diaphragm vacuum advance which comes with adjustment instructions to adjust to various Ford distributor numbers, and can be ordered under part number VC-31. Borg-Warner sells the same vacuum advance as part number VC-311, adjustable as well. Over the years I have used both.

The Thermostatic Vacuum Switch with the three nipples is part of the smog package. It's purpose is to withhold vacuum from the distributor vacuum advance until the engine warms up and coolant temp reaches operating temp, when the switch will allow the vacuum to operate the distributor vacuum advance as normal. In this way, cold engines will warm up faster having slightly retarded timing . My shop manual shows where each vac hose goes from the factory. I also have left the switch in place, however I just run a ported vacuum hose from the base of the carb to the single advance distributor. Everything works just fine .

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  • 3 weeks later...

David.....any news? I am about to burst!

No matter what, I will take a unit for 71 429cj/4sp/ram air.

 

A few photos would be awesome......

 

Lemme’ know.....

 

Ok made it into town to pick up my heads and the parts place is next door so I got one of the vacuum advances. It is probably wrong it has both and end vacuum port and one on the side. i can see the adjusting screw down inside the end. It is made in U.S.A. by KEM there is two numbers on the box that I will also try to track down on the net. VC17 and VC7412A. I have attached a couple pictures for reference. Can you get me pictures of yours and your distributor number also?

It was $29.11 USD.

Thanks,

David

100_3401.jpg

 

100_3402.jpg

 

100_3403.jpg

 

100_3404.jpg

When a man is in the woods and talks and no women are there is he still wrong??:P

David

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