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Ossipon Samba Member
Joined: May 12, 2021 Posts: 474 Location: KS
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Posted: Fri Feb 24, 2023 2:44 pm Post subject: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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So, I have picked up another ZV JCU 4 R 3 Distributor. This one has the correct and functional vacuum. (Unlike the one I have now with the wrong vacuum bell)
I read Glenn is not doing Dizzy restoration any longer due to lack of kits. So, have decided to do this myself. I overhauled an 019 and a 205G decades ago. So while rusty, it is not a new thing.
My main concern is this question: Are there any parts, shims, etc that are unique to the JCU 4 R 3 beyond the double weights and vacuum unit? My main concern is springs. I have springs from my two, but know springs do get weak.
I already have two new 3002 caps, two 4006 rotors and one new condensor, I will be using 1002 points.
Any other items such as shims and fiber or felt bits, I will have to get.
My other question is in regard to axial and radial play. My existing R 3 has minimal play, but has no shims at the bottom, just the fiber washer. My new purchase R 3 has a bit of play and with shims above and below the fiber washer. My Blue Bentley is what I am using for reference shows shims and fiber washer.
Pictures to follow when I get started _________________ Ossipon
VWs in my life:
Air
Type 1 - 59, 62, 63, 71 Super 68 KGhia/ Type 2 - 59 Single Cab / Type 3 - 64 Notch
Water
GTI 83, Jetta 81, 85, 87, 91 TDI, 98 TDI, 09 / New Beetle 99 / SportWagen 05, 13 / Tiguan 18 / T3 92 |
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Bobnotch Samba Member
Joined: July 06, 2003 Posts: 22425 Location: Kimball, Mi
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Posted: Fri Feb 24, 2023 3:04 pm Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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You might want to contact Pedro, or Jason (Notchboy) as they might have some parts and advice on going thru it. _________________ Bob 65 Notch S with Sunroof
71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120
Tram wrote: |
"Friends are God's way of apologizing for relatives." |
Tram wrote: |
People keep confusing "restored" and "restroyed". |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76939 Location: Sneaking up behind you
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Posted: Fri Feb 24, 2023 3:11 pm Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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If you PM me your name and phone number, i'll be happy to call and offer as much advice as you need.
I have some loose parts I can send you. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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heimlich VWNOS.com
Joined: November 20, 2016 Posts: 6617 Location: Houston, Texas
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Posted: Fri Feb 24, 2023 4:32 pm Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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It's the same as all of the other cast iron distributors. The main difference in the shaft are the weights. They sit on pins like the later model aluminum distributors have. The fiber washers are the same as well as the shims. I sell a shim kit that has all of those parts in it. What else do you need to know?
_________________ www.vwnos.com [email protected]
Classic Brands. Classic Quality.
Not all parts are made the same. NOS OE/OEM parts made mainly in West Germany, Early Germany, and Early Brazil are where VW produced the best quality parts and best fitting products.
5% Off your order with coupon code: 5%OFF
Restored Distributors Available (<--Click here) |
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Ossipon Samba Member
Joined: May 12, 2021 Posts: 474 Location: KS
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Posted: Sat Feb 25, 2023 11:07 am Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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So, I am just getting started. I am as previously said pleased with the condition of the unit I purchased.
This is what it looked like when it arrived.
And Inside
I have taken it apart except for the small center snap ring. I will be following Glenn's advice and carefully punch it to release.
Making sure I take picture of the shims and associated order.
It is cleaning up well. Next will be putting it in the Ultrasound batch for the deep clean.
Next step after cleaning is waiting for the overhaul kit. Then, back together we go. Details will follow _________________ Ossipon
VWs in my life:
Air
Type 1 - 59, 62, 63, 71 Super 68 KGhia/ Type 2 - 59 Single Cab / Type 3 - 64 Notch
Water
GTI 83, Jetta 81, 85, 87, 91 TDI, 98 TDI, 09 / New Beetle 99 / SportWagen 05, 13 / Tiguan 18 / T3 92 |
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heimlich VWNOS.com
Joined: November 20, 2016 Posts: 6617 Location: Houston, Texas
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Posted: Sat Feb 25, 2023 11:30 am Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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That all looks correct. You have the correct vacuum canister as well. You'll want to put a pressure tester on there because they can be bad. They can also stick.
Do you see any rust on the bottom of the shaft? Any dimpling from corrosion
_________________ www.vwnos.com [email protected]
Classic Brands. Classic Quality.
Not all parts are made the same. NOS OE/OEM parts made mainly in West Germany, Early Germany, and Early Brazil are where VW produced the best quality parts and best fitting products.
5% Off your order with coupon code: 5%OFF
Restored Distributors Available (<--Click here) |
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Ossipon Samba Member
Joined: May 12, 2021 Posts: 474 Location: KS
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Posted: Sat Feb 25, 2023 12:11 pm Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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heimlich wrote: |
That all looks correct. You have the correct vacuum canister as well. You'll want to put a pressure tester on there because they can be bad. They can also stick.
Do you see any rust on the bottom of the shaft? Any dimpling from corrosion
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I will do the more detailed corrosion review once I get done with the Ultrasonic clean.
I am not placing the Vacuum can in the ultrasonic. I used a Hand vacuum gauge to measure and test. It appears to be holding vacuum on low pressure. and The retraction is full when fully pumped. My minor concern is the cap bolt on the can looks like it had been moved. I hope someone did not change the screw setting on the unit. (I did that very thing decades ago on my 59 when I did not know better) _________________ Ossipon
VWs in my life:
Air
Type 1 - 59, 62, 63, 71 Super 68 KGhia/ Type 2 - 59 Single Cab / Type 3 - 64 Notch
Water
GTI 83, Jetta 81, 85, 87, 91 TDI, 98 TDI, 09 / New Beetle 99 / SportWagen 05, 13 / Tiguan 18 / T3 92 |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76939 Location: Sneaking up behind you
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Posted: Sat Feb 25, 2023 12:57 pm Post subject: Re: Going there: Rebuilding a ZV/JCU 4 R 3 Distributor |
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Your breaker plate has the "nubs" for adjusting the dwell as we discussed on the phone. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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