Look what soaking these in vinegar for a day and scrubbing with a brass brush can do. (The one on the left)
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I told you that you were going to channel Chuck Hahn1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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Looking goodCowboy Up or Quit. - Run Free Lou and Rest in Peace
1981 GS550T - My First
1981 GS550L - My Eldest Daughter's - Now Sold
2007 GSF1250SA Bandit - My touring bike
Sit tall in the saddle Hold your head up high
Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"Comment
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Good times!
Thanks for sharing.
Ed
****GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
GS750TZ Parts Bike [Seq#6036]
GSX-R750Y (Sold)
my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)
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Getting the donor engine prepped for install, I spent about 3 hours today cleaning up the base gasket surface on the block. As I’m moving the pistons out of my way I realize that #4 piston’s rings are not moving freely like the others. All rings on #4 are frozen into their recesses at their tightest diameter. I removed the ring from one side on the pivot pin (it subsequently vanished into the ether, lucky it didn’t go in my eye) and drove the pin through and removed the piston.
I assume I’ve got to replace the rings on at least on this piston. How do I get them out? Soak in PB? Do I definitely have to replace all the rings on all pistons? That’s $120 more dollars I didn’t want to spend on this engine.
Last edited by Rich82GS750TZ; 05-10-2020, 07:57 PM.Comment
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There is carbon in the ring land. Maybe some varnish too. You can try soaking the piston in carb dip to loosen. A better method is to first remove the rings though and then soak. Use an old ring, broken in half, to scrape out the old carbon. Just be careful to not scratch the aluminum.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Depending on how much time you have - I left the pistons with their stuck rings sitting in cans of paint thinners and ATF on the bench. By the time I got around to them they were all lovely and free and clean enough to lick your dinner off.Dave
'79 GS850GN '80 GS850GT
Only a dog knows why a motorcyclist sticks his head out of a car windowComment
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Oh, Geeze!
Wash up and have a beverage.
Ed
****GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
GS750TZ Parts Bike [Seq#6036]
GSX-R750Y (Sold)
my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)
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Thing is, I KNOW to not wear gloves when working close around spinny tools like a drill press, especially with a wire wheel. Yeah, time for a beverage.Comment
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That poor glove! Can it be saved?
And that's your passenger foot peg support, right? Was it damaged?
1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red
2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.Comment
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Only thing damaged was a little bit of skin on my hand. The glove and piece I was cleaning up are fine. Yes passenger peg support. The swingarm rod goes through it too.Comment
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1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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