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My 1971 521


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#401 mainer311

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Posted 09 January 2018 - 08:02 AM

The Z car guys replace their solid choke cables with .055" music wire. You can buy a 30' roll of it for ~$11 on Amazon. Being solid, it will allow you to both push and pull the choke. Something to consider.



#402 d.p

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Posted 09 January 2018 - 08:03 AM

yeah I read that somewhere too.  I don't think I can replace the wire on mine though, its all one piece as far as I can tell.

 

Stoffgren..pic below.

 

36252692711_f721e02a6b.jpg



#403 Stoffregen Motorsports

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Posted 09 January 2018 - 09:08 AM

It looks like the knob comes off, correct?

 

I found this cable - http://www.new-datsu...mages/cin22.jpghere at - http://www.new-datsu...kup-parts.html. It's listed for a J13, but I bet it would work. The same part number is listed on the 620 page too - http://www.new-datsu...ruck-parts.html



#404 d.p

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Posted 09 January 2018 - 09:15 AM

Yeah it does and I got one of those already but the knob is different and it doesn't come off.  I guess I could just swap it for now and look for a matching NLA one.  



#405 mainer311

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Posted 09 January 2018 - 10:18 AM

You sure the knob doesn't come off? The one in my roadster gets removed by pushing it all the way in, rotating counterclockwise, and then pulling it off. 

 

To do this, you may need to pull the choke out, hold the shaft in place with a pair of pliers, and then try the method above. 



#406 d.p

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Posted 09 January 2018 - 10:26 AM

God dammit you right as hell mainer. 

Just went and grabbed the new one I bought and it came right off.   Hopefully my stock knob fits on this cable.  

 

39599230111_3f59f84874_z.jpg



#407 wayno

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Posted 09 January 2018 - 10:28 AM

All the knobs on a 520/521 are mounted the same, they all come off, even the cigarette lighter knob comes off, but that one unscrews while the rest have a small screw that holds them in position.

The cigarette knob in this photo is not a 521 knob, it is there for reference as it looks the same but is smaller like the rest of the knobs.

DSCN7633.jpg

Below is a photo of my 521 kingcab turbodiesel dash, the choke knob on the lower right is connected to a light switch as I didn't want a unused choke cable in the engine compartment or under the dash either, so I used a headlight switch to mount it, also you can see a stock cigarette lighter knob in between the boost and EGT gauge.

DSCN7634.jpg


 

 


#408 wayno

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Posted 09 January 2018 - 10:32 AM

Well I was a bit late on that.

That choke cable you have came off something else other than a 521 as they didn't come with a knob shaped like that.


 

 


#409 d.p

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Posted 09 January 2018 - 10:38 AM

Problem is that cable is threaded end where as stock is just a square end and set screw.  Got to figure out a way to put stock knob on this cable.  I think it came from a 510 but no way of knowing for sure. 



#410 d.p

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Posted 09 January 2018 - 12:20 PM

Anyone know the size/threads of the OEM set screw? New one does have a flat side so I could cut the threaded part off and then drill/tap it and be golden.  



#411 mainer311

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Posted 09 January 2018 - 01:12 PM

6-32, maybe? Don't quote me on that. If you have taps, just try to match the screw up to one. 



#412 Stoffregen Motorsports

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Posted 12 January 2018 - 09:03 AM

6-32, maybe? Don't quote me on that. If you have taps, just try to match the screw up to one. 

Maybe, but it may also be metric. They were mixing and matching metric and SAE in that era.

 

Problem is that cable is threaded end where as stock is just a square end and set screw.  Got to figure out a way to put stock knob on this cable.  I think it came from a 510 but no way of knowing for sure. 

You could fill the OEM knob with epoxy (JB Weld) and drill-n-tap it for the new cable.



#413 d.p

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Posted 12 January 2018 - 09:13 AM

Yeah that could work too.  I have JB weld, so just fill it up, let it dry and then drill/tap the knob to except the new cable?  



#414 Stoffregen Motorsports

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Posted 12 January 2018 - 09:19 AM

Yeah, why not?



#415 DanielC

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Posted 12 January 2018 - 10:06 AM

521 body parts are SAE.  Dash knob set screws would either be #6-32 or a #4-40.



#416 d.p

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Posted 15 January 2018 - 09:04 AM

Damn came home today and heard some weird noises under the hood so I kicked the fender and 3 squirrels ran out from under the truck.  Popped the hood and it looked like they were eating acorns in the engine bay.   



#417 Crashtd420

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Posted 15 January 2018 - 09:25 AM

Damn came home today and heard some weird noises under the hood so I kicked the fender and 3 squirrels ran out from under the truck. Popped the hood and it looked like they were eating acorns in the engine bay.


That's awesome.... not really but made me laugh..... at least they weren't snacking on the wiring.....

#418 d.p

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Posted 15 January 2018 - 09:26 AM

That's awesome.... not really but made me laugh..... at least they weren't snacking on the wiring.....

 

yeah, that was my first thought.  I guess other than parking it in my garage I got no way of stopping them from climbing up and in.  



#419 Crashtd420

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Posted 15 January 2018 - 09:58 AM

521 body parts are SAE. Dash knob set screws would either be #6-32 or a #4-40.


Well definately not 6-32... to big...
The screw I took out matched a 4-48 tap... but the tap seemed loose in the threaded hole.... so I am not 100% convinced I am right... gonna try to borrow a 4-40 tap and see how that fits or bring a switch to work tomorrow and use the thread gauges to figure it out .... I need 2 screws for my switch so I need to figure it out eventually anyhow ...

#420 Crashtd420

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Posted 15 January 2018 - 01:20 PM

4-48 is correct....
I checked 4-40 and wouldn't go....
Checked a different switch and the 4-48 fit like it should....