Vacuum advance canister


Information and questions on GL1100 Goldwings (1980-1983)
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pschweitzer
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Motorcycle: 1983 Goldwing Interstate GL1100I

Vacuum advance canister

Postby pschweitzer » Sun Aug 30, 2015 7:51 pm



I saw this topic recently. I have the same issue and have plugged the advance and the bike is running fine without it. Managed to find a decent PG with a serviceable canister. Does anyone have any pictures or advice on how to open the part up and what to use to repair the diaphragm?



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littlebeaver
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Re: Vacuum advance canister

Postby littlebeaver » Sun Aug 30, 2015 10:51 pm

I know there is a special tool that can be used on the canister to pry up the bend metal, I had no such tool, I grinded around the outside of the canister and clamped it back and used JB Weld to seal it, it's been good now for a lot of years.....I remember that there was some guy that did sheet metal work that chastised me for cutting it open like that, he said I was an idiot for doing it that way,, perhaps I am, but I made a vacuum advance that was dead come back to life and it's been good ever since so at least I'm a smart idiot...LOL.... :lol:

pschweitzer
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Joined: Mon Jun 10, 2013 6:03 pm
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Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Vacuum advance canister

Postby pschweitzer » Mon Aug 31, 2015 9:51 am

thanks littlebeaver. I'm wondering if something like a manual can opener would work to pry back the edges. I am going to sit and ponder this for a bit and I'll let you know if I come up with something. If not your method is probably the most straight forward (and the guy who invented JB Weld should be given a Nobel Prize for Peace in the shops across the world).

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virgilmobile
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Re: Vacuum advance canister

Postby virgilmobile » Mon Aug 31, 2015 12:35 pm

If you have a complete assembly,rather that trying to fix the canister,clean it and replace yours.

pschweitzer
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Location: Warrenton, Virginia
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Re: Vacuum advance canister

Postby pschweitzer » Mon Aug 31, 2015 2:08 pm

Virgil,
I have a complete PG with canister that I bought off e-bay some time back when I started to think that I had spark advance issues. It is a clean unit and everything works, but the canister doesn't hold vacuum. You can suck on the hose and the cams move freely, but from a previous thread it sounded like the canister should hold vacuum until the suctionis removed. I would love you to tell me I'm mistaken because then you are right, just remove the old and install a good one.
Pat

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virgilmobile
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Re: Vacuum advance canister

Postby virgilmobile » Mon Aug 31, 2015 3:06 pm

The canister should hold a vacuum.maybe not forever but it should hold a steady vacuum.
Sorry.

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virgilmobile
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Re: Vacuum advance canister

Postby virgilmobile » Mon Aug 31, 2015 3:07 pm

Before you rip it apart,mark the rest position of the PG mounting plate to the casting.Just so you get it back in the same place.

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littlebeaver
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Re: Vacuum advance canister

Postby littlebeaver » Tue Sep 01, 2015 7:04 am

I also mark it inside at the arm with a marker or pencil, try not to turn the arm or unscrew it....See that arrow on the case, mark that too ...Also: on the back of the canister there should be a cover right at the center point of the canister, it's a little cover made of epoxy like a cap, it covers the adjusting screw to the arm of the unit so someone can adjust it from the outside, well guess what????? A lot of times that cap or cover falls off and the result is a leak, sometimes that's all it is, that cap fell off, the fix is to JB Weld it shut again.. Keep in mind, 9-10 of the diaphragms I have operated on had holes in them.... :D this is what happens when you get a fella with too much time on their hands and he loves fudging around with things... He figures this crap out...LOL Oh I had fun...
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pschweitzer
Posts: 74
Joined: Mon Jun 10, 2013 6:03 pm
Location: Warrenton, Virginia
Motorcycle: 1983 Goldwing Interstate GL1100I

Re: Vacuum advance canister

Postby pschweitzer » Tue Sep 01, 2015 10:38 am

Littlebeaver I've been accused of buying broken things just so I can fix them, so you are not alone. I have an APP on my tablet called iFixit. It basically gets updated with a lot of stuff from people like us who just don't like throwing things out. ;)

Virgil and Littlebeaver thanks for all of this info.




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