Restoration started


Information and questions on GL1000 Goldwings (1975-1979)
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Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Restoration started

Post by Wirelic » Sun Aug 11, 2019 7:27 pm



Hello All,

I introduced myself a week or so back. I just inherited a 1978 GL1000 very much in need of a fair amount of work. It has a Vetter fairing and saddle bags and a trunk(trunk is removed in pics). Of course the gas tank is rusty, carbs gummed up, both brakes systems need to be rebuilt, new brake lines, tires. Rear shocks are toast. Bike has a bit over 50K miles on it.

So, I pulled off all the luggage and started at the rear so I can remove the gas tank. Removed shocks, fender, inner fender, loosened the shelter, removed side covers, seat, petcock, fuel line, fuel filter, rear master cylinder. I do have the tank almost removed, but there were several times where that seemed physically impossible, just not enough space. Now, however, I’m confident I’ll get it removed. Not sure if it’ll go back in, though.

One thing I’m wondering about is when I line the tank, or seal it, after dealing with the rust, how have you guys dealt with the internal lines to the petcock? How have you kept them clear or free of tank sealer?

I’ll try to keep you updated as to my progress. Any suggestions or tips will be greatly appreciated
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SnoBrdr
Posts: 743
Joined: Fri Mar 07, 2014 9:01 am
Location: Providence, Rhode Island
Motorcycle: 1978 GL 1000

129K Original Owner

Re: Restoration started

Post by SnoBrdr » Mon Aug 12, 2019 12:34 pm

Wirelic wrote:
Sun Aug 11, 2019 7:27 pm
Hello All,

I introduced myself a week or so back. I just inherited a 1978 GL1000 very much in need of a fair amount of work. It has a Vetter fairing and saddle bags and a trunk(trunk is removed in pics). Of course the gas tank is rusty, carbs gummed up, both brakes systems need to be rebuilt, new brake lines, tires. Rear shocks are toast. Bike has a bit over 50K miles on it.

So, I pulled off all the luggage and started at the rear so I can remove the gas tank. Removed shocks, fender, inner fender, loosened the shelter, removed side covers, seat, petcock, fuel line, fuel filter, rear master cylinder. I do have the tank almost removed, but there were several times where that seemed physically impossible, just not enough space. Now, however, I’m confident I’ll get it removed. Not sure if it’ll go back in, though.

One thing I’m wondering about is when I line the tank, or seal it, after dealing with the rust, how have you guys dealt with the internal lines to the petcock? How have you kept them clear or free of tank sealer?

I’ll try to keep you updated as to my progress. Any suggestions or tips will be greatly appreciated
I used Por 15 when I coated my tank.

Has worked well for me.

People use guitar strings or similar attached to a drill to clean out the internal gas tank lines.

User avatar
Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Re: Restoration started

Post by Wirelic » Mon Aug 12, 2019 2:12 pm

Thanks, Snobdr. Still haven’t made a final decision as to how I’ll deal with this.

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SnoBrdr
Posts: 743
Joined: Fri Mar 07, 2014 9:01 am
Location: Providence, Rhode Island
Motorcycle: 1978 GL 1000

129K Original Owner

Re: Restoration started

Post by SnoBrdr » Mon Aug 12, 2019 2:17 pm

Wirelic wrote:
Mon Aug 12, 2019 2:12 pm
Thanks, Snobdr. Still haven’t made a final decision as to how I’ll deal with this.
There are as many ways/answers as you could imagine.

I took what I thought was the easiest route for me.

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dingdong
Posts: 3692
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Restoration started

Post by dingdong » Mon Aug 12, 2019 2:49 pm

I also used Por 15. Followed the directions carefully and there were no clogged lines or screen.
Tom

"Molon Labe"

John F. Kennedy would be impeached by todays liberal Democratic socialist party.

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Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Re: Restoration started

Post by Wirelic » Mon Aug 12, 2019 5:07 pm





Thanks guys. Today I did get the gas tank out, but I did have to pull the rear drive. I’d removed the rear master cylinder and everything else, but it was physically impossible to get the tank out without pulling the drive off. I know some say it’s not necessary, but it as a must in my case. No big deal, I’m glad I pulled it. It needs to be cleaned up, checked and greased anyway.

I did find the electrical connector between the stator and everything else burned thru today. It’s a wonder the previous owner didn’t get stranded on the road someplace.
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smittyboy734
Posts: 32
Joined: Tue Apr 12, 2016 7:21 am
Location: trenton,mi.usa
Motorcycle: 1978 gl1000..owner 70 cl70 .previously owned 81cb750k,76 cb500T ,78 kz650,71 H1500

Re: Restoration started

Post by smittyboy734 » Sat Aug 17, 2019 4:28 pm

when i restored my 78 i used vinegar in the tank let it sit for a couple weeks while i was dealing with all the other stuff, it turned out clean as a whistle,and have done it to other tanks since if you have the time it works well

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rudolphwolven
Posts: 106
Joined: Fri Jun 20, 2014 7:05 am
Location: Netherlands - Utrecht
Motorcycle: 1975 GL1000 K1

Re: Restoration started

Post by rudolphwolven » Thu Aug 22, 2019 5:55 pm

***
During restoration in 2016 of my 1975 GL1000 K1/11.000 mls; OEM seat & muffler; OEM/original painted panels,
I derusted my 31 year old fueltank with:
1) Main derusting:........... Pure cleaning vinegar (containing 8% acetic acid conform European Norm....Table vinegar is different and has 4%).........approx. 20 x 1 ltr. treating the tank's inside for a couple of weeks.......
2) Second derusting for remaining rust spots:..........Fertan 22220 Water Based Rust Converter Spray 250ml Non-Toxic Made in Germany poured into the tank and rinsed thoroughly in all directions....(I did not use the spray pistol of course)
3) Rinse the perfect derusted tank (now has a blanc grey metal inside wall) with a lot of clear water and dry it with some (hair)dryer.......
4) Mix the Tapox (415 gram) with TX-10 (125 gram) , forming a 2-component coating, pour it in the tank (all openings closed) and move tank thoroughly in any possible horizontal, vertical, 360 degr. direction to cover / coat the inner side of the tank..........pour out the remaining liquid......
After drying a beautiful red-brown inner coating of the tank is realised.
5) Advise: ..........I did a new rattle-can ground- and finish coating for the outside of the tank
REMARK: do not forget to let the cleaning vinegar and coating treatments enter the two fuel lines inside the tank......

Image

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Proud winner of the NGWClub-USA contest Bike of the Year 2016--Image

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Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Re: Restoration started

Post by Wirelic » Fri Aug 23, 2019 5:17 am

Hi Rudolph,

Thank you for your very detailed report on de-rusting your fuel tank. I really appreciate all the details and excellent photos. I do clean a lot of tanks in my restoration business, but I’ve never done one with internal screens and lines so I was a little concerned. I have done the vinegar soaking, but that has never worked well for me. Probably because of the type of vinegar that’s available around here.

What I have found that works is using a product called EvapoRust, which is environmentally safe. I put a couple gallons of that in the tank and let it soak for a week or so, turning and rotating the tank several times a day. This product is also reusable, which helps save some money. After draining that, I rinse very thoroughly with water and dry with a heat gun. I then slosh around in the tank a pint or so of acetone. I drain and let dry. And, with the Goldwing I have made sure both products ran through the internal fuel lines, evenblowing them out with compressed air.

My final coating is Caswell 2 part epoxy fuel tank sealer. It’s ethanol proof and forms an excellent liner/sealer. Like you, I spent almost an entire hour turning and rotating the tank slowly in all directions, making sure every surface inside the tank was coated. I blew compressed air thru the fuel lines about every 5 minutes throughout this process, keeping the lines and screens open. This has yielded and excellent looking job! But only time will tell the final results, but many have been having great success with this product. One other thing I like about the Caswell epoxy is that it’s practically odorless. None of the harsh oders like many other products.

On a side note, I had read on one of forums about de-rusting a tank by filling it with a saltwater solution, installing a heavy bolt as in electrode and connecting it to a battery charger. I tried this method and found that it did nothing for my Goldwing tank. It did dissolve a 12” log spike and pumped out mountains of brown/green foam that made a big mess. But after several days and rinsing out the tank, I found all the rust was still there. One can’t believe all you read on the internet!

Congrats on your Wing! It’s beautiful! I haven’t yet decided if I’ll restore and keep this Wing or restore and sell it. I guess that depends on how it feels after I get it done and start riding it.

User avatar
Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Re: Restoration started

Post by Wirelic » Fri Aug 23, 2019 5:23 am

Here’s a pic of the Caswell product I used on my Goldwing tank. It comes in several colors and clear. I used the Dragon Blood Red, which really helps to see that I get full products coverage inside the tank.
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DenverWinger
Posts: 981
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Restoration started

Post by DenverWinger » Fri Aug 23, 2019 6:15 am

Very impressed by the tank restoration jobs there!
Wirelic wrote:
Fri Aug 23, 2019 5:17 am
On a side note, I had read on one of forums about de-rusting a tank by filling it with a saltwater solution, installing a heavy bolt as in electrode and connecting it to a battery charger. I tried this method and found that it did nothing for my Goldwing tank. It did dissolve a 12” log spike and pumped out mountains of brown/green foam that made a big mess. But after several days and rinsing out the tank, I found all the rust was still there. One can’t believe all you read on the internet!
Electrolysis is effective and works... If it dissolved the spike you had the battery charger polarity backwards, otherwise rust in the tank would have dissolved instead of the spike and the spike got bigger instead of smaller..... :D Just sayin' :lol:

When I was a little kid I used to play with that, put a dime and a penny in salt water and hook a 9v transistor battery to them, in one polarity you'd get a silver-colored penny and the dime wouldn't change, in the other polarity you'd get a copper-colored dime, the dime unchanged. This is electroplating. So you actually added log spike metal to the inside of the tank.

Thought just occurs to me, once the tank is de-rusted, theoretically you could then reverse the polarity and use a copper rod instead of the log spike, and copper-plate the inside of the tank. THAT wouldn't rust! :idea: :idea:
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

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Wirelic
Posts: 19
Joined: Mon Mar 26, 2018 10:11 am
Location: Green Bay, WI
Motorcycle: 1978 GL1000
1986 Suzuki Cavalcade
1977 Triumph 750 Bonneville
1967 Triumph Mountain Cub

Re: Restoration started

Post by Wirelic » Fri Aug 23, 2019 7:09 am

You’re comments prove one can’t believe everything we read on line. I hooked up my tank exactly as the writer had said. He said positive side of battery charger to electrode and negative to the tank. That’s how I did it.
Not to disagree with you, but I saw no change to the internal of my tank. I think the dissolved electrode ended up outside the tank in the mountains of green foam. My guess is maybe the water I used thru off the process as it had high mineral content. Maybe I should have used distilled water.

But, I appreciate your comments and observations. Too late I find out I coulda had a copper lined tank! How cool that would be!



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