Another 76 GL1000 Recovery

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Fred Camper
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Re: Another 75 GL1000 Recovery

#31

Post by Fred Camper »

Not a bad try, similar to an impact if you get enough push on the driver.
Proud member of the NGW Cartel (Rochester MI)
1977 GL1000 BADDOG (April 2012 BOTM)
1976 LTD - '993 LTD...and so it begins'

You should remember that it's peace of mind you're after and not just fixing the machine. R.Pirsig
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Re: Another 75 GL1000 Recovery

#32

Post by leonardhcross »

Several months have passed. Today was Start-up Day. Carbs have been rebuilt, all the basics have been done. Unfortunately, there appears to be no "fire" at this point. I have included a video so that you can hear the unusual sound coming from the carbs. I assume that was one of the slides banging. It came and went. I would like your thoughts.https://www.youtube.com/watch?v=cTlfbmQjVEI
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Re: Another 75 GL1000 Recovery

#33

Post by Whiskerfish »

Couple things. With the compression numbers you reported in the video I have to assume you did not have the throttle open during your test? I would run it again with the throttle held wide open. Also I would never spray gas directly into the plenum. All the wings that I know of lost to fire started that way. Back firing on first startups is very common, and now you have a puddle of gas sitting there ready to go. Even if you don't put a filter in it I would put the air box in place and have the lid bolted on. That way if you do get an intake fire you just hit the kill switch and crank the starter. that will suck any fire through the engine and extinguish it.
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Re: Another 75 GL1000 Recovery

#34

Post by gltriker »

leonardhcross wrote: Tue Jun 20, 2023 6:19 pm Several months have passed. Today was Start-up Day. Carbs have been rebuilt, all the basics have been done. Unfortunately, there appears to be no "fire" at this point. I have included a video so that you can hear the unusual sound coming from the carbs. I assume that was one of the slides banging. It came and went. I would like your thoughts.https://www.youtube.com/watch?v=cTlfbmQjVEI
the OFF/RUN/OFF switch is turned to RUN? Yes?
Makes no difference whether the ignition system is points and condenser or electronic.
Utilize the 12volt low watts lightbulb probe tester method to verify positive primary voltage is present at both individual primary terminals when the engine is cranking over. Yes? What is the voltage measured at both primary terminals? No?

https://ngwclub.com/forum/viewtopic.php ... 00#p802000 POST#4

Appears those are original ignition coils? Spark plug caps, too? A 1975 model year, eh. Has the inner insulation in the spark plug cables turned into black tar?
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: Another 75 GL1000 Recovery

#35

Post by leonardhcross »

Whiskerfish wrote: Fri Jun 23, 2023 6:19 pm Couple things. With the compression numbers you reported in the video I have to assume you did not have the throttle open during your test? I would run it again with the throttle held wide open. Also I would never spray gas directly into the plenum. All the wings that I know of lost to fire started that way. Back firing on first startups is very common, and now you have a puddle of gas sitting there ready to go. Even if you don't put a filter in it I would put the air box in place and have the lid bolted on. That way if you do get an intake fire you just hit the kill switch and crank the starter. that will suck any fire through the engine and extinguish it.
Thanks for the advice. I'm pretty sure that I had the throttle wide open but perhaps not. The good news is that, a little while later, the engine started up and ran well for the first time running in many years. The throttle was not snapping back and so there were some rpm issues but the forum has lots of info on throttle adjustment. Your advice regarding spritzing gas directly into the air cleaner is appreciated. I have used this approach many times over the years on anything from lawn mowers to old trucks. Just the same, I will avoid it in the future thanks to your advice.
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Re: Another 75 GL1000 Recovery

#36

Post by leonardhcross »

gltriker wrote: Fri Jun 23, 2023 7:28 pm
leonardhcross wrote: Tue Jun 20, 2023 6:19 pm Several months have passed. Today was Start-up Day. Carbs have been rebuilt, all the basics have been done. Unfortunately, there appears to be no "fire" at this point. I have included a video so that you can hear the unusual sound coming from the carbs. I assume that was one of the slides banging. It came and went. I would like your thoughts.https://www.youtube.com/watch?v=cTlfbmQjVEI
the OFF/RUN/OFF switch is turned to RUN? Yes?
Makes no difference whether the ignition system is points and condenser or electronic.
Utilize the 12volt low watts lightbulb probe tester method to verify positive primary voltage is present at both individual primary terminals when the engine is cranking over. Yes? What is the voltage measured at both primary terminals? No?

https://ngwclub.com/forum/viewtopic.php ... 00#p802000 POST#4

Appears those are original ignition coils? Spark plug caps, too? A 1975 model year, eh. Has the inner insulation in the spark plug cables turned into black tar?
Thanks Cliff. It is always good to hear from my "Wing" neighbor". I am not very savvy when it comes to electrical issues. Not totally dumb but not very confidant. For example, I have a light tester and I have a volt meter. But I don't know where the "primary terminals are". I will check the link that you included. And, yes, inside the spark plug connections there was black tar. I cleaned them up as best I could.
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Re: Another 76 GL1000 Recovery

#37

Post by leonardhcross »

She's running! Thanks to Cliff for his guidance. After a couple of weeks of trouble-shooting the starting system, the bike is running. As per Randakk, I have flushed the engine twice and now have oil filter number three and fresh oil. The carbs have been rebuilt but have not been balanced yet. Balancing carbs and brake work next. Here is the video: https://www.youtube.com/watch?v=BZItDgQeJWI
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Re: Another 76 GL1000 Recovery

#38

Post by leonardhcross »

My last post featured a video showing my starter system issues followed by a resolution with the bike running. Since that time, I have run the bike a couple of times....mostly to bring it up to temp followed by oil and filter changes. I noticed that the bike was heating up quickly followed by antifreeze appearing to steam out the overflow reservoir. I checked the antifreeze and the oil for signs of contamination...nothing. The exhaust out both pipes was normal...no white smoke, no sweet smell. So, I began the process of checking all the components. I pulled and examined the radiator. It looked good. I re-checked the water pump and decided to replace it with a new pump. I serviced the fan switch and the pin was moving. I replaced the thermostat. I bench tested the fan..also good. With the new water pump and thermostat in and everything checked-out, I started the bike. It overheated pretty quickly. I pulled the radiator and bench tested the thermostat. It opened as it should in hot water. I jumped across the terminals of the fan switch and the fan kicked on. I reassembled and started again. The bike starts easily. After a couple of minutes of monitoring, I started to see a lot of steam coming from under the left side. I got down and checked. Antifreeze was running out the exhaust ports and on to the hot pipes. I have now ordered a top end gasket kit and will prepare to learn how to dismantle and then instal new head gaskets. I am almost 75 and I am getting smarter by the day. Most likely, I will have no occasion to put all these new smarts to use in the future. Just the same, it is good to learn new stuff. Speaking of learning new stuff, I was hoping to find a step-by-step tutorial on head removal, servicing and re-installation. Can anyone direct me to such a post?
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Re: Another 76 GL1000 Recovery

#39

Post by Fred Camper »

Whole section on cylinder heads in shop talk
Surprised you overlooked that Lenord.
Proud member of the NGW Cartel (Rochester MI)
1977 GL1000 BADDOG (April 2012 BOTM)
1976 LTD - '993 LTD...and so it begins'

You should remember that it's peace of mind you're after and not just fixing the machine. R.Pirsig
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gltriker
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Re: Another 76 GL1000 Recovery

#40

Post by gltriker »

leonardhcross wrote: Wed Aug 16, 2023 9:30 am After a couple of minutes of monitoring, I started to see a lot of steam coming from under the left side. I got down and checked. Antifreeze was running out the exhaust ports and on to the hot pipes. I have now ordered a top end gasket kit and will prepare to learn how to dismantle and then instal new head gaskets. I am almost 75 and I am getting smarter by the day. Most likely, I will have no occasion to put all these new smarts to use in the future. Just the same, it is good to learn new stuff. Speaking of learning new stuff, I was hoping to find a step-by-step tutorial on head removal, servicing and re-installation. Can anyone direct me to such a post?

Good morning, Len! note... I would recommend you start a new topic for this new discovery. There's a lot of information that can/will be offered to you about the finer points of surface preparation strategies, preparation of cylinder head bolt threads,etc. Lots to be learned beyond just the ShopTalk tutorial, itself.

Shoptalk has a tutorial in the upper left corner in the Engine maintenance header, look under Cylinder Heads
https://ngwclub.com/forum/page/ST

https://ngwclub.com/forum/viewtopic.php?t=7683

Found under ShopTalk Cross Over Parts List by Big T

Head Gasket Job, Part Numbers, our thanks to Alwing17 for these.
Qty - - - Part # - - - - - Description
2 -- 12251-371-306 -- gasket, head
2 -- 12328-371-000 -- gasket, cyl head cover
2 -- 19429-371-306 -- gasket, water elbow
2 -- 91308-371-003 -- o-ring, oil orifice(small)
2 -- 91305-371-003 -- o-ring, oil orifice(large)
4 -- 91301-MB6-003 -- o-ring, coolant tube
4 -- 18291-386-306 -- gasket, exhaust
4 -- 91301-371-005 -- o-ring, intake manifold
1 -- 91256-096-651 -- seal, tach cable
1 -- 12390-371-405 -- insulator, fuel pump housing
3 -- 91209-371-003 -- seal, camshaft
8 -- 12209-MB9-003 -- seal, valve guide
** And timing belts, oil, silicate-free coolant, as well as a thermostat. The cam seals and valve guide seals are needed if you choose to lap your valves while the heads are off.
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.
leonardhcross
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Re: Another 76 GL1000 Recovery

#41

Post by leonardhcross »

Fred Camper wrote: Wed Aug 16, 2023 9:54 am Whole section on cylinder heads in shop talk
Surprised you overlooked that Lenord.
Hi Fred.Thanks for the input. One of the first things that I did was go to the tech forum and type in "head gasket replacement" I did get lots of bits and pieces but did not find a step-by-step tutorial. I have received some links in additional responses so will now go check those out.
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Re: Another 76 GL1000 Recovery

#42

Post by leonardhcross »

gltriker wrote: Wed Aug 16, 2023 10:01 am
leonardhcross wrote: Wed Aug 16, 2023 9:30 am After a couple of minutes of monitoring, I started to see a lot of steam coming from under the left side. I got down and checked. Antifreeze was running out the exhaust ports and on to the hot pipes. I have now ordered a top end gasket kit and will prepare to learn how to dismantle and then instal new head gaskets. I am almost 75 and I am getting smarter by the day. Most likely, I will have no occasion to put all these new smarts to use in the future. Just the same, it is good to learn new stuff. Speaking of learning new stuff, I was hoping to find a step-by-step tutorial on head removal, servicing and re-installation. Can anyone direct me to such a post?

Good morning, Len! note... I would recommend you start a new topic for this new discovery. There's a lot of information that can/will be offered to you about the finer points of surface preparation strategies, preparation of cylinder head bolt threads,etc. Lots to be learned beyond just the ShopTalk tutorial, itself.

Shoptalk has a tutorial in the upper left corner in the Engine maintenance header, look under Cylinder Heads
https://ngwclub.com/forum/page/ST

https://ngwclub.com/forum/viewtopic.php?t=7683

Found under ShopTalk Cross Over Parts List by Big T

Head Gasket Job, Part Numbers, our thanks to Alwing17 for these.
Qty - - - Part # - - - - - Description
2 -- 12251-371-306 -- gasket, head
2 -- 12328-371-000 -- gasket, cyl head cover
2 -- 19429-371-306 -- gasket, water elbow
2 -- 91308-371-003 -- o-ring, oil orifice(small)
2 -- 91305-371-003 -- o-ring, oil orifice(large)
4 -- 91301-MB6-003 -- o-ring, coolant tube
4 -- 18291-386-306 -- gasket, exhaust
4 -- 91301-371-005 -- o-ring, intake manifold
1 -- 91256-096-651 -- seal, tach cable
1 -- 12390-371-405 -- insulator, fuel pump housing
3 -- 91209-371-003 -- seal, camshaft
8 -- 12209-MB9-003 -- seal, valve guide
** And timing belts, oil, silicate-free coolant, as well as a thermostat. The cam seals and valve guide seals are needed if you choose to lap your valves while the heads are off.
As always, thanks Cliff. That second link appears to be just exactly what I needed. I am learning that sometimes a simple search like "replacing head gaskets" can get you multiple threads; some of which require more digging.
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