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79 GS1000L bad noise in motor, lots of stuff in oil.

  • Thread starter Thread starter exdirtbiker
  • Start date Start date
The one right above where he explains how to remove the flywheel without buying any tools, and even points out the source for the correctly-sized bolt to do the job.

Bear in mind that the threads on the swingarm bolt are short for the job - so you need to stuff something down in there. I tried a nut that looked like it would do the job just great, but wound up getting stuck in the threads in the crankshaft. Fortunately the reason I was removing the flywheel was to replace the crankshaft. Would have sucked otherwise. An allen bolt probably would have worked better.

You could also just go buy an M16x1.5 bolt with longer threads. I think that's the right size (you could take the nut off of the swingarm and take it to the hardware store to try it on for size).
 
mike_of_bbg said:
The one right above where he explains how to remove the flywheel without buying any tools, and even points out the source for the correctly-sized bolt to do the job.

Bear in mind that the threads on the swingarm bolt are short for the job - so you need to stuff something down in there. I tried a nut that looked like it would do the job just great, but wound up getting stuck in the threads in the crankshaft. Fortunately the reason I was removing the flywheel was to replace the crankshaft. Would have sucked otherwise. An allen bolt probably would have worked better.

You could also just go buy an M16x1.5 bolt with longer threads. I think that's the right size (you could take the nut off of the swingarm and take it to the hardware store to try it on for size).
Click to expand...

Thank you sir!
 
OK, the "RH thread" description on the pullers had me convinced it was "reverse thread".
So I pulled the swing arm bolt just to prove Phil wrong, and... errr.... crap. It worked.
I guess my blonde hair is no lie.
Can we call it a "senior moment"? Please ?

The bolt I was using before was the right size, wrong pitch.

So now for the verdict....... { drum roll, please }

There is nothing wrong with the starter clutch.
So my local bike shop was correct, and I have a bad crank bearing.
banghead.gif
foul.gif

Anyone have a spare motor laying around?
will anything besides the 78-79 gs1000 (chain drive) motors fit in there?

Just for the record... I think I owe Phil a beer.:o
 
U don't need another engine, just rebuild yours, get a manual, its extremely easy, if its the outer bearing thats shagged you can replace that, but if it's the inner ones it will have to be pressed apart, try find a crank on ebay or bottom end, how many miles on your engine? they usually dont start mesing up until 80k or more or infrequent oil changes.
Like I stated, get a manual and do it yourself.
(Oh, I don't drink,, so a burger will do mate!)
 
I have the 1980 GS1000 manual downloaded.
Are there any differances worth noting from 79 to 80? ( besides the carbs)

Or should I just go buy a Clymer book?
 
the 80's manual you downloaded should also be for the 78 and 79 for some reason it has been named the 1980 one. if it's not let me know and i will get the full version over to basscliff
 
the cover page says "printed July 1980" "99000-85850 4E3 "

how do you tell if it's the same a the 78-79?

Or did I screw this up? Again ? ( I'm on a streak !!! )
 
The base level GS1000 manual is all you need to crack the engine. The later years are supplements to the base manual. You should be fine if you download from Basscliff's site.
 
Pictures !

Pictures !

DSC02001a.jpg


DSC02003a.jpg


There is 4 miles on this oil.

4.

Pretty, aint it ???
The motor is upside down, on my workbench. I pulled the bottom pan, and found all the "gunk".
I can see all the copper washers on the crank from the bottom... they look OK.
So.... I think I blew a needle bearing cage on a rod ?
I'll know by tomorrow.

'Sometimes you're the windshield...."
 
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did you check out under the starter clutch cover?

if you had main bearing problems your engine would be making a slapping noise with every revolution... like most here, i doubt thats the issue.

-Nate
 
Sounds mysterious. I'm afraid the most help i can offer is to ask questions. Just to clarify, is this happening mostly at idle, while stationary and in neutral, but also while riding?

Edit: Woah. Weird. There were no other replies when i originally wrote this, then as soon as i submitted there were a bunch.
 
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Nate, I pulled the flywheel, and the screws on the back were loose, but they didn't chew up anything.
the copper washer behind it looks new. the flywheel didn't appear to be spinning on the crank.

and please hop on over to this post.... it's the only one I'm checking everyday. http://www.thegsresources.com/_forum...11#post1007411

Pete
 
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