Re: Puch AD

here's some moped decomposition pics for you all to enjoy.

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Re: Puch AD

chopped the worst of the corrosion out of the frame then doused it with ospho inside and out. the ospho neutralizes the oxidation and turns the rust black. last pic after 24 hours of being treated.

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Re: Puch AD

you cant really notice from the pictures but I sprayed an etching primer inside the frame til it dripped out. hopefully it stays rust free. cut out three patches for the frame and welded two of them. i have one left and it's all boxed in.

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Re: Puch AD

Looking good, keep the pics coming

Re: Puch AD

I admire your efforts to save this rustbucket.

Re: Puch AD

Brandon Weiss (Detective brandon to you) /

Wow, keep going!

Re: Puch AD

The right person got this bike. Wowza

Re: Puch AD

awesome

Re: Puch AD

Never seen one before, Thank you. Rob.

Re: Puch AD

[attachment 202762 IMG_2635.J

I got lucky mine was in great shape when I got it .

Re: Puch AD

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Re: Puch AD

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Re: Puch AD

Very cool, keep the pics coming!

Re: Puch AD

I wonder if there was a special trunk made for the AD . It looks like is has a mounting point for a trunk that is unique

Re: Puch AD

thank you all for the encouragement. iam all in at this point. I have a bunch of parts coming in from the independence day sale. I finished boxing the frame and plug welded a couple holes.

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@Theron, your AD is very clean it was loved alot more than this one. mine is missing the center stand and i was wondering where the spring for it goes; your pics show where. I hope I find the engine covers, it looks so smooth all put together like that.(edited)

Re: Puch AD

What is this ospho stuff? I don't need it for bikes, but I have a few cars that would benefit, is that the trade name or an abbreviation?

Re: Puch AD

we keep a gallon or two at the bodyshop it gets used all the time. you just brush it on after you've prepped the metal. usually just a light brushing with the wire wheel and you let it sit for 24hrs. it reacts with the rust and changes the chemical composition so it doesn't degrade any further. it's cheap too like 25 bucks for the gallon(edited)

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Re: Puch AD

Nice, can anyone buy it? If so where, or do you have to be a shop?

Re: Puch AD

you can get it at the hardware store. Iam pretty sure home depot has it.

Re: Puch AD

Thank you for sharing, I'll ask for XMAS:).

Re: Puch AD

slathered body filler on the frame and primed it over the weekend. I cant prep the whole thing for paint yet. I need the AD decals duplicated. my wife dabbles in graphic design and said she'd do it. I am sure it's not gonna be cheap either. she's probably going to make me do some house work I've been neglecting like paint the fence and deck.

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Re: Puch AD

.

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Re: Puch AD

DrGeorgeTompson (Alan) /

Shit you are doing such a good job with this. Keep on killing it

Re: Puch AD

was tired of doing bodywork so I separated the motor from the swing arm. the pedal arms and shaft fought me the whole way. I didnt want to beat on the pedal crank since its built into the aluminum swing arm. I ended up cutting the cotter pins and one of the pedal arms since it was rusted together.

the whole thing was pretty grimy but the motor cleaned up nice. iam thinking this ZA might actually be low mileage

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Re: Puch AD

lookin sick dude

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woah, i didn't realize those were like straight up za's, i thought they had that weird boxy motor that you see on the india hero puchs and stuff...

must be a roller crank then? Ducati CDI? looking forward to pics of the guts.

Re: Puch AD

this is my first ZA but from comparison the only real difference I see is the drive gear has the pedal sprocket/starter mechanism mounted on.

iam hoping it has a roller crank. i don't want to do a full rebuild if I can avoid it. I hear the ZA is more complicated to rebuild specifically the shiming and float tolerances. the ignition has a points stator but with 12volt lighting

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Re: Puch AD

Yeah I think these had the later model ZAs with the roller bearing crank and the fill plug in the transmission cover. The transmission cover gasket is slightly different and has a notch on the top, harder to find a replacement but with google search I found this one (not recommending mopedjunkyard here, just linking for reference)

http://www.mopedjunkyard.com/Puch-ZA50notch-cover-gasket_p_972.html

Re: Puch AD

got the underseat/tank cubby done up. the cubby is cast aluminum it had corroded through in a couple spots and was to contaminated to weld. i ended up cutting out a couple of patches out of an aluminum sign and stuck'em with a panel bonding epoxy. still needs to be smoothed out, filled and primed.

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Re: Puch AD

.

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