No spark, points not opening.

[Curveball]

Hello all! I am new to the world of Goldwings and have recently purchased a 1975 GL1000. It had sat in a garage for a few years but it did take much to get it running and driving. Out on a ride the other day it was riding a little jerky. I thought this was due to it being not warmed up. I pulled over to let it idle with the choke on a bit and then took off again after thinking it was warm. I slowed to about 20mph from 30mph for a speed bump in 3rd gear. It studdered a little as my rpms werent high enough for third and it jerked a little like a stall then backfired and the engine shut off. I tried to start it on the side of the road to no avail. After I pushed it home I tried to start it again. As the starter turned the engine over and over ther was a loud bang! Like a gunshot it was so loud. It smelled like firecrackers afterward and scared the crap out of me. My wife came running out to the garage to see if I was ok, it was that loud. Now I do not have spark. I took off the points cover and the shaft is not spinning. I took off the left valve cover and they are not opening and closing. I do get spark when I snap the advancers manually. I am currently draining the oil and coolant to remove the radiator and look at the cam chain. What happened!? Please help! See link below

[YouTube][/YouTube]

[Rambozo]

No cam chain, these are belt driven. Or was belt driven in your case. It sounds like you broke a timing belt. That usually results in bent valves.
Everyone and their brother will tell you the first thing in bringing back an old GoldWing is to change the timing belts.

Pull the timing covers and have a look. If you are lucky, you will only have to pull one head.

[Curveball]

Timing belts ok. I've been trying to find a manual for download. When you say Ill be lucky id I have to pull one head, what do you mean by that?

[Rambozo]

You said you took off the left valve cover and the valves are not opening and closing. Is the camshaft turning? If it's not turning, 9 times out of 10 that is a bad cam belt. Either broken or sometimes just the teeth ripped off.

[Rambozo]

Timing belts ok. I've been trying to find a manual for download. When you say Ill be lucky id I have to pull one head, what do you mean by that?

There are two timing belts. If you only damaged one, then maybe only one head will have bent valves.
BTW your link to YouTube is missing the ID number. If it is a "Short" this forum can't deal with those.

[Curveball]

Yep that makes sense. I hope I do get lucky. I wasnt traveling very fast and stopped immediately so I really hope the damage isn't catastrophic. Youtube would only let me upload it as a short as it's lile 30 seconds long. I will be pulling the radiator off soon to get the covers off and inspect. Stay tuned. Does anyone know where to get a manual or do I have to shell out the $125?

[Rambozo]

They come up on ebay all the time for good prices. You may have to watch for a while to get a 1975.
Or maybe not.
https://www.ebay.com/itm/305640094965

[Curveball]

Good to know. I was trying to flip this one so I did plan on keeping it very long.
Update! Front covers are off and both belts are intact. If your looking at the bike from the front, the right one is a little loose but they look pretty good. I will replace them anyway. I've seen some threads on here as to which belts to get but will take recommendations. No what? When I turn the engine by hand the park advance still doesn't turn and the valves don't seems to be moving either. Is there a clutch problem? It goes in and out of gear so I can't imagine that has something to do with it. I really don't know. [url][YouTube][/YouTube] I know the link may not work but I will try. Can look up @NoSlogan and view my video also.

[Rambozo]

Turn the engine by hand and watch the timing belts and camshaft sprockets. See what is turning and what isn't. There is where your problem is.
Possible causes.
No teeth on a section of timing belt.
Key sheared off in cam or crank sprocket.
Broken crank or cam.

Maybe proofread your posts a bit better. Having to figure out what you meant to say makes it hard to concentrate on the problem.

I saw your video. Can't tell much with the valve cover in place. Obviously, something is very wrong. Could be something simple like a broken advancer. Or the engine could be junk. Need to see more.

[Curveball]

I see that I have a lot of spelling errors that make it hard to read. I will look for the possible causes you mentioned and hopefully take another video with the valve covers off. Thanks for the responses.

[Rambozo]

No problem. I hope it's something easy to fix. But cams not turning is a really bad omen.

[Curveball]

The cases were full of rubber debris which led me to examine the belts further. Just like you had mentioned, the left belts teeth had been shorn off. I am going to order new belts and inspect the valves. Since I have to reset the timing, how should I go about setting the left belt wheel since it is surely out of time. I see the mark and I'm guessing it should be TDC on compression stroke and lined up with the T1 mark on the rear case and the L mark on the front with the hash on the side of the front case. Any tips would be great and have you ever ordered from goldwingparts.com? They say they have made in japan goldwing parts but everyone says to stay away from 3rd party belts.

[Rambozo]

The OEM belts are Gates rebadged as Honda. So, you might as well just buy Gates. I think they are T274, but I wouldn't trust my memory anymore, look them up to be sure. There is a topic here covering the whole broken belt issue and getting things back in place. What you want is to rotate things by hand with the plugs out so you can feel what is going on. Get the pistons to about half way down the bore, then it's safe to turn the cams to line them up. Finally bring the crank up to TDC and install the belts.

The first thing I would do is pull the left valve cover and check the valve lash. If you have any way over spec, you have bent valves and will need to pull that head.

Out of everyone who has posted here with broken timing belts, I can only remember one or two where they got extremely lucky and didn't bend a valve.

[Curveball]

Alright wingers. I have been plucking at this 75' gl1000 for the last month or so and couldn't get it to pop off for the life of me. Today it changed a little bit. I re-set the timing but it sure seems off. it's smoking a bit and has a slight knock on the right side of the engine. Now I am aware that I may have bent a valve. The engine turns well by hand without binding. I don't want to run the engine to long as I don't want to cause a lot more damage and there isn't any coolant in it. I have taken some footage and I will post the link below. How do I make sure that the bike is at TDC? I fear that when trying to set the timing I threw it all out of whack with both belts off. So lets assume its totally out. How do I set the timing starting with both belts off?

You will have to go to my channel and watch the video on the GL1000 as this forum doesn't play well with shorts.
Youtube and my channel is @NoSlogan

[Rambozo]

There is a topic here covering the whole broken belt issue and getting things back in place. What you want is to rotate things by hand with the plugs out so you can feel what is going on. Get the pistons to about half way down the bore, then it's safe to turn the cams to line them up. Finally bring the crank up to TDC and install the belts.

You can do a compression or cylinder leakage test to see if you bent any valves. A leakdown will tell you which valve but that doesn't matter as any will require pulling the head to fix.
The T1 mark is TDC of the #1 piston. Whether that is compression or overlap depends on the cam position as the crank spins twice for each turn of the cams.

[Track T 2411]

As said above, set the crank on the T1 mark in the timing widow. If you're starting with no belts installed, I just loosen all the valve lash adjusters (you'll have to reset the lash later, anyway) until they are flush with the rocker arms. This will allow you to turn the crank and cams independently with no interference. Simply set the crank at T1 and each cam at their designated timing marks, and install the belts. Once done, I turn the engine over by hand several rotations and recheck the timing marks to verify everything's correct. I'm sure there's several how-to's with pics...

[RobbyMoto]

have you ever ordered from goldwingparts.com?

Just adding my two cents. I have ordered from them and had no issues. They keep a large inventory of parts, mostly no-name stuff from China and they are honest about that fact if you ask them. Shipping was fast from Toronto to Cleveland.

Also, I put the Gates belts on my '75. No issues so far.

[Curveball]

Thank you for that detailed instructions. I was looking for this as I didn't want to accidentally dig myself further into a hole. Now I assume it's TDC on compression stroke and I have my finger in the spark plug hole to detrmine that.