Mr.H's new engine

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Sidecar Bob
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Mr.H's new engine

#1

Post by Sidecar Bob »

This is Mr.H. It is an '83 with a '79 engine and a Dnepr sidecar. I put the bike together in '97, added the sidecar in '09, re-painted it in '11 and changed the forks and instrument panel in 2013, just before this pic was taken. I replaced the crappy eBay instrument panel with aDanmoto 180 and replaced the original coils with ones from a GL1500 last year.
Image

The combination of 1000 engine & transmission and 1100 final drive resulted in overall gearing more than a gear higher than stock, which was wonderful on 2 wheels - lower RPM the highway and great mileage. Having driven it like that for 12 years before I decided to add a sidecar, I had the mindset that that was just what it was but it has been struggling, especially when pulling away uphill with a passenger, ever since.

Sometimes I'm a little slow on the uptake but last year I figured out that the solution to most of its problems would be to replace the GL1000 engine with a GL1100 engine. A little research on the forum and I started shopping.

Edit: Pic hosted on Potobucket replaced
Added link to 1500 coils
Last edited by Sidecar Bob on Sat Apr 10, 2021 12:26 pm, edited 3 times in total.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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Sidecar Bob
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Re: Mr.H's new engine

#2

Post by Sidecar Bob »

Thanks to Flyin900 I was able to purchase a GL1100 parts bike only an hour from home. The seller & I disassembled it and it came home in my wife's CR-V
Image

Yes, there is an engine in there
Image
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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Sidecar Bob
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Re: Mr.H's new engine

#3

Post by Sidecar Bob »

I finally started working on the engine a couple of weeks ago.
Image

Can I use a GL1000 rear engine cover on an 1100 engine? (I decided to plate over the hole anyway)
Does the end of 1100 crank need to be plugged when removing pulser shaft? (I don't think it does)
Image
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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CYBORG
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Re: Mr.H's new engine

#4

Post by CYBORG »

Looks REALLY good!
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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Sidecar Bob
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Re: Mr.H's new engine

#5

Post by Sidecar Bob »

Piston in honing - advice before I start?
My buddy that grew up in the shop of his father's VW dealership (= he has had a lot more engines apart than I have) was here yesterday so I got him to have a look at it. He said if it was his engine he wouldn't hone so I'm going to leave it alone.

Cylinders #3 & #1. (the lines you can see in #1 are not very deep. Cleaning the cylinder out with Scotchbrite removed most of it.
Image

Cylinders #2 & #4
Image

While we were turning the engine we noticed that #1,2&3 pistons are all flush with the mating surface at TDC but #4 is about 3mm below. This split screen pic shows the difference. Is this common or do I have a problem?
Image
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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sunnbobb
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Re: Mr.H's new engine

#6

Post by sunnbobb »

Hmm, I don't remember my pistons doing that on my 81...
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1978 Learning Experience
1980 County Road Hauler "Brain Damage"
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1977 Bulldog Inspired "Vaincre"
1981 Street Fighter GL1100 "No Quarter"
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Re: Mr.H's new engine

#7

Post by CYBORG »

Ya, almost sounds like a bent rod
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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Re: Mr.H's new engine

#8

Post by salukispeed »

That would be the symptom of a hydraulic-ed issue some time in its past and a bent rod seems possible.
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Re: Mr.H's new engine

#9

Post by JBz »

that's quite a bit 3mm. #3 cylinder doesn't look good to me............jb
jbz........... Thinkin about sh-t too hard and You wont get anything done
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Re: Mr.H's new engine

#10

Post by Whiskerfish »

That would be a cause for significant concern for me.
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Re: Mr.H's new engine

#11

Post by ericheath »

That's what happened to my 85 engine when it hydrolocked. I did not even notice it happened except for a little more vibration and a slight loss of power. I only found it because it blew a head gasket. From the way mine rode, I'll bet there a few others rolling around and don't even know they're bent.
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77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
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robin1731
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Re: Mr.H's new engine

#12

Post by robin1731 »

That is a bent rod. I had one here about 2 years ago like that. Ran, but as the guy rode it the engine started to make noise. It will just keep getting worse if you run it.

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Easter
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Re: Mr.H's new engine

#13

Post by Easter »

Oh boy, bad news!! And after all that cleaning and painting.
Bikes at present:

83 XL 600r with a 2004 XR650L engine
And a slightly worse for the wear BMW GS adventure bike awaiting repair
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jdvorchak
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Re: Mr.H's new engine

#14

Post by jdvorchak »

+1 with Robin on the bent rod. Not even sure if you can buy rods and bearings any more. Maybe look for a different engine.
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71 CL350 with Bingham side car
2021 HD Triglide
2008 HD Dyna Low Rider
83 KZ1100L1 Son totaled it
83 KZ550LTD Shaft sold

Previous bikes: 84 GL1200 STD, 83 KZ550LTD, 83 CB1000, 78 CB400A, 82 CB900F, 79 CB750K, 2001 GL1800, 2000 Dyna Super Glide, 1972 CB350 K4, 1985 GL1200A, 1997 1200 Sportster, 84 GL1200I, 82 Honda CM400E, 81 Suzuki GS650L, 72 Triumph Bonneville 750, 72 Honda CB350, 66(?) Honda 305 Scrambler, 6? Yamaha yz250, 62 650 Matchless (Norton-Villers).
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Re: Mr.H's new engine

#15

Post by jdvorchak »

Easter wrote:Oh boy, bad news!! And after all that cleaning and painting.
Look at the bright side.... Now you know how to clean and paint one. I'm wondering if that much of a bend in the rod would have shown up with a compression test.
New users please visit our "Shop Talk" for common tips and help:
http://ngwclub.com/forum/page/ST


Don't fix it 'til it's broke...
The person with the most toys wins!
If it has wheels or a skirt you can't afford it.
Amateur Radio Station WW9L

71 CL350 with Bingham side car
2021 HD Triglide
2008 HD Dyna Low Rider
83 KZ1100L1 Son totaled it
83 KZ550LTD Shaft sold

Previous bikes: 84 GL1200 STD, 83 KZ550LTD, 83 CB1000, 78 CB400A, 82 CB900F, 79 CB750K, 2001 GL1800, 2000 Dyna Super Glide, 1972 CB350 K4, 1985 GL1200A, 1997 1200 Sportster, 84 GL1200I, 82 Honda CM400E, 81 Suzuki GS650L, 72 Triumph Bonneville 750, 72 Honda CB350, 66(?) Honda 305 Scrambler, 6? Yamaha yz250, 62 650 Matchless (Norton-Villers).
John
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