Compression

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Boxeerman
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Compression

#1

Post by Boxeerman »

Just tested compression on my 1982 1100.3 cylinders over 150 and one cylinder at 136. What is considered good compression, the bike has 108,000 kilometers on it.
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desertrefugee
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Re: Compression

#2

Post by desertrefugee »

Ride the heck out of that one. Most folks don't start worrying unless they're below 120 or so. That outlier "might" suggest a valve issue. I'd adjust them and test again. Hopefully, not burnt. Unlikely to be rings - they usually tend to wear evenly.

Bottom line: your numbers are completely rideable.
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Re: Compression

#3

Post by Boxeerman »

Sounds good to me, still wondering what numbers a refreshed top end might get.
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Re: Compression

#4

Post by Whiskerfish »

Factory spec is 171. I have never seen one of those. 150-160 is probably what most of us are running.
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Boxeerman
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Re: Compression

#5

Post by Boxeerman »

Still getting the bike sorted out,new seals for air shocks are on order.Good to hear that my numbers are good. I HAVE only put a 200 km on her since getting her last November but seems to have lots of power compared to my airhead. Planning on a trip to Prince Edward Island in mid June need more shakedown miles to gain trust that I have attended to all needs.
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Re: Compression

#6

Post by gltriker »

" to gain trust that I have attended to all needs."

have you........Changed The Timing Belts Yet? ;)
Cliff (74yrs ;) )

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Boxeerman
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Re: Compression

#7

Post by Boxeerman »

Yes to changing timing belts. Also shortened clutch cable and new stainle ss steel front brake lines to work with aluminum street bike bars.seat rebuilt . Bike debated and simplified. Have not tried yet to post any photos..
Not very computer savvy re photo posting but she is looking leaner and meaner. Headers and mufflers ceramic coated.
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gltriker
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Re: Compression

#8

Post by gltriker »

Picture posting

viewtopic.php?f=9&t=64754&p=718143&hili ... es#p718143

Also, if you scroll down to the bottom of this page, to SIMILAR TOPICS, there's always something to learn there, too. tumb2
Cliff (74yrs ;) )

Keep your eyes and ears open and you'll learn something new, everyday. tumb2

New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^ :oldies

RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi tumb2
"Can't see the paint when your looking thru the handlebars..........." -Oldewing ;)
"I'd rather Ride than Shine" -RAT tumb2 Me Too!!

Cliff

'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM :shock: https://nakedgoldwingsclub.com/forum/page/Welcome

previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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Re: Compression

#9

Post by Boxeerman »

1982 gl 1100
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Re: Compression

#10

Post by Boxeerman »

pictures???
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1982 gl 1100
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Re: Compression

#11

Post by Boxeerman »

I would like to change to a smaller paintable front fender. Any suggestions?
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ericheath
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Re: Compression

#12

Post by ericheath »

So your engine sat for a while. Try your compression again after a thousand miles. Lots of people find lower compression after sitting a while which improves with use.
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Boxeerman
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Re: Compression

#13

Post by Boxeerman »

The bike had 2 owners prior to me .The original owner till 2013 who put on 68,000 km and the second owner from 2013 to November 2017 who put on 40,000 km. Bike has bee n ridden well the last 4 years . I am going to recheck number 2 cylinder since it was the first I did and confirm that I had the throttle twisted fully open.
1982 gl 1100
Boxeerman
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Re: Compression

#14

Post by Boxeerman »

Also , I did do valve clearance setting after I changed the timing belts a month ago. What a great resource you are all providing ,thank you.
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RB
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Re: Compression

#15

Post by RB »

Just FYI..

On goldwings 75 to 83 165+ EXCELLENT!!! 160-165 GREAT; 150-160 REALLY GOOD; 145-150 OK; 140-145 STILL OK; BUT GETTING DOWN THERE 140- TIME TO REBUILD ACCORDING TO MANUAL..BUT SHE WILL STILL RUN JUST FINE ALL THE WAY DOWN TO 100 or so.

One thing compression numbers should be close, within 5lbs. or so of each other..one way off is suspect..needs to be looked into. Dirty/bent/hangin/set wrong valves?? worn or miss aligned rings? head gasket issue??
98 1500 SE..
99 1500 SE SOLD
97 SE 1500 SOLD
83 SOLD
82 REBUILT sold!!!
81 DAILY RIDER sold her :(((!
81 REBUILT SOLD!!!
81 REBUILT SOLD!!
80 REBUILT SOLD
79 IN BASKET PARTS FOR SALE
79 CLEANED UP AND SOLD
78 REBUILT SOLD
77 REBUILT SOLD
76 SOLD/PARTIAL REBUILD
76 REBUILT AND SOLD
75 REBUILT SOLD
75 REBUILT SOLD
75 REBUILD SOLD


FAIR WINDS,
RB
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