Author Topic: Magpie's/Cliff's 1982 GL1100 "Recovery" (Read 2599 times)

Magpie · « **on:** July 16, 2023, 11:44:22 AM »

I have recently inherited a 1982 GL1100 Interstate that has been parked, without any preparation, for over 20 years. This is an excellent way to document my recovery of this bike. "Recovery" because this is not a full restoration as such, just a make it rideable and nice, a way to honour my late friend and keep his memory alive. Cliff.

Magpie · « **Reply #1 on:** July 16, 2023, 11:55:57 AM »

Yikes, rusty gas tank with really smelly gas left inside. I pumped it out and filled it with white vinegar about a week ago. A friend has suggested CLR may be a quicker way to get rid of the rust. I'll try that today. I was able to remove the carbs and started to clean them. They are intimidating! They will have to be disassembled to be rebuilt, thank goodness for youtube.
First job is to empty the float bowls of jets etc and then clean the outsides of them with some Gunk engine cleaner. The photos make them look better than they actually are.

BenelliSEI · « **Reply #2 on:** July 16, 2023, 01:42:17 PM »

Griffey….. Having “been there, done that”, I agree those carbs will be a challenge. Lot’s of info the internet…. Somewhere, I have a booklet I bought on the Randaak website, years ago. It was invaluable. Good Luck!

newday777 · « **Reply #3 on:** July 16, 2023, 02:53:23 PM »

Highly recommend you get Randakks carb kit as it is the only place that has the special center plenum seal that is also made of Vinton. No brass so clean your own brass parts to reuse.

https://www.randakks.com/carburetor-kit-gl1100-premium-group.html

BenelliSEI · « **Reply #4 on:** July 16, 2023, 05:27:27 PM »

My buddy Gary sent his GL1000 carbs to a guy named “Pistol Pete”, recommended by Randakk, years ago. Unfortunately, he is gone, RIP! It was money very well spent! Pete used to keep a running “donkey motor” to sync the carbs before he sent them back…..
we bolted them on and it’s run like a charm ever since.

You’re not far from Mike Nixon… May be an option to consider?

Magpie · « **Reply #5 on:** July 19, 2023, 08:35:55 PM »

Carbs have gone to friend who has a vapour blasting business with instructions to not break the set apart. He swears get the throttle and chokes moving freely. Cleaned all the float bowl innards. Got the rad out of the way to replace the cam belts. A friend will help with that, at least he volunteered to help. So far so good.

grcamna2 · « **Reply #6 on:** July 19, 2023, 08:44:13 PM »

They cleaned-up nice

Stev-o · « **Reply #7 on:** July 20, 2023, 08:12:54 AM »

Hey Cliff...nice project to honor your friend. Subscribed...

MauiK3 · « **Reply #8 on:** July 22, 2023, 02:39:20 PM »

Can’t wait for more

Johnie · « **Reply #9 on:** July 22, 2023, 07:05:17 PM »

She looks cosmetically pretty clean Cliff. What a great way to honor your friend! Good luck with the project...

RAFster122s · « **Reply #10 on:** July 23, 2023, 12:25:22 AM »

Cliff, that is a well kept Wing. Those extended front pegs have a beefy mount, looks like you could stand on them and they wouldn’t budge, the crash bars might if you danced on them and were a big fellow.

Johnie · « **Reply #11 on:** July 23, 2023, 08:44:38 AM »

I like the crash bars! I'll need something like that to protect my polished valve covers.

Magpie · « **Reply #12 on:** July 24, 2023, 10:15:03 AM »

Yesterday's job, the rear master cylinder is seized and I finally got he piston out. I cleaned up the bore with a small wire brush so the piston moved freely. Put it back together and went to bleed the rear line and no brake fluid moving when I pump the rear brake. When I had it off the bike I put my finger over the outlet hole and pumped the cylinder, there was pressure against my thumb. Stumped. The cylinder is not leaking fluid so the rubber parts may be good. There's not many ways to mess up the assembly. Maybe it's not sucking fluid from the reservoir - today's job. I guess it's time for a rebuild kit for the master.

BenelliSEI · « **Reply #13 on:** July 24, 2023, 10:24:07 AM »

Cliff ….. check the inlet where the reservoir ties in. Plugged?

Also, the rubber line back to the caliper. I’ve seen them totally melted and plugged internally.

newday777 · « **Reply #14 on:** July 24, 2023, 11:02:05 AM »

Also, check that fluid flows through the brake lines. My 83 had plugged solid(hard steel) lines that I had to snake a wire through.

Johnie · « **Reply #15 on:** July 24, 2023, 03:01:05 PM »

I agree a new MC kit would be a good start. I know mine was also frozen and it was a mess when I got it out. Put the new Honda kit in and she is ready to go. I also had to replace my piston do to pitting and added a new seal too. Had to do the same with the front brakes too. Good luck with it.

Magpie · « **Reply #16 on:** July 24, 2023, 05:43:50 PM »

It looks like the master cylinder piston is not pulling fluid from the reservoir and pushing it through the line. All the passage are clear in the master. I put the master in the vice with the inlet side up, filled the hole and pumped the piston, the level did not go down so I believe the rubber parts are toast. Time for a rebuild kit.

grcamna2 · « **Reply #17 on:** July 24, 2023, 07:27:14 PM »

Quote from: Magpie on July 24, 2023, 05:43:50 PM

It looks like the master cylinder piston is not pulling fluid from the reservoir and pushing it through the line. All the passage are clear in the master. I put the master in the vice with the inlet side up, filled the hole and pumped the piston, the level did not go down so I believe the rubber parts are toast. Time for a rebuild kit.

I believe you can also suspect the caliper piston;a lot of these have a poor quality 'pot metal' type alloy piston which reacts to the quality cast aluminum of the caliper body.
I would be looking for a complete OEM Honda caliper rebuild kit including the piston.

70CB750 · « **Reply #18 on:** August 02, 2023, 01:23:33 PM »

Following, good luck.

Magpie · « **Reply #19 on:** August 13, 2023, 10:06:19 AM »

Rear master cylinder has been rebuilt and pushing fluid through the line to the rear rotor. I had to persuade the caliper off the rotor. The caliper has been cleaned especially the slots where the seals and dust seals go. New seals and dust seals installed, pistons cleaned up, they looked good. Put it back together and reinstalled it. Bled it and the brakes are still on, the rear wheel will not turn. I'm sure the return hole in the is clear, fluid went through the hose, good volume of fluid showing when I bled it, so the pistons in the caliper must not be returning to a rest position, releasing their grip on the rotor. I'll go through the system again. Dammit.

RAFster122s · « **Reply #20 on:** August 13, 2023, 11:24:33 AM »

Hoses can collapse internally , action like a one-way valve... Hoses could be cause even if you can get fluid through them...

Step back and you will figure it out...

BenelliSEI · « **Reply #21 on:** August 13, 2023, 11:44:39 AM »

Cliff ….. good point above. Also check the grooves the seals sit in are scrupulously clean or the extra tight seals will “hold” the pistons……did they slide in easily?

BenelliSEI · « **Reply #22 on:** August 14, 2023, 09:38:40 AM »

Cliff…. If you need a new flex hose, I’m pretty sure Raymond at Apex made up mine and posted it in a few days. I laid it out on a piece of scrap cardboard with dimension penned around it. That and a few more photographs of the end connections was all he needed.

Magpie · « **Reply #23 on:** August 14, 2023, 10:16:08 AM »

Thanks guys. The pistons went in but not easily. I did clean the grooves very carefully. However after going through the master cylinder I made sure the return hole was clear and clean by running the smallest drill bit I have through it. That seemed to help as the rear wheel will now turn although the pads are dragging a bit. The wheel does not "free wheel". So, it's improved but probably worth recleaning the grooves just to be sure.
I'll report back after doing that.
I have several sets of brake lines from Raymond for my CB750's. He does excellent work.
Cheers,
Cliff.

BenelliSEI · « **Reply #24 on:** August 14, 2023, 03:30:56 PM »

Cliff…. If you put new pads in, just leave it. I bet it settles right down with a few miles. Sometimes I make myself crazy over stuff that really isn’t a problem. You too?

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Author Topic: Magpie's/Cliff's 1982 GL1100 "Recovery" (Read 2599 times)