Re: "Parts Bike" a '77 rebuild thread
Posted: Mon Jun 28, 2021 5:47 am
Got the belts on using Octane's turorial as a reference.
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"Parts Bike" a '77 rebuild thread
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Re: "Parts Bike" a '77 rebuild thread
Posted: Mon Jun 28, 2021 5:51 am
These center pulleys have some surface rust. The tensioners should work but the bearings are due for replacement. I'll run it like this for now and refurbish those parts off the donor later.
Re: "Parts Bike" a '77 rebuild thread
Posted: Mon Jun 28, 2021 5:55 am
Some of the valve adjusters look pitted. Using the smooth ones. a little out of focus but you get the idea.
Re: "Parts Bike" a '77 rebuild thread
Posted: Mon Jun 28, 2021 2:10 pm
whoa! what does the end of the valve stem it contacts look like? 
Re: "Parts Bike" a '77 rebuild thread
Posted: Wed Jun 30, 2021 6:53 am
The stems are all smooth. Must have been part of the service at th machine shop.
Re: "Parts Bike" a '77 rebuild thread
Posted: Wed Jun 30, 2021 8:06 pm
brand NEW tappet adjuster screws and nuts are still available from Honda's parts system.
SCREW, TAPPET ADJUSTING
90012-426-000
NUT, TAPPET ADJUSTING
90206-250-000
After rereading this entire thread and seeing visual proof of your belief that the valve train had been poorly maintained, I must offer up this Proactive advice.
Take a really good look at the tappet adjusting nut threads. If they have been previously overtightened (improperly torqued), the deformed threads in the tappet nut may not properly secure the tappet adjusting screw into the rocker arm anytime going forward, and you may unexpectedly be searching for a lost tappet adjusting nut and , worse case scenario, tappet adjusting screw in the base of the engine.
The tappet adjusting screw threads are more robust than a tappet adjusting nut's threads, and most likely won't show visible witness of "stretching."
per the Honda GL1000 Service Manual, page 3-10, set "lock nut torque" at 104-139 inch/ pound
just sayin'
Re: "Parts Bike" a '77 rebuild thread
Posted: Sat Jul 10, 2021 7:40 pm
thanks @ gltriker!
Re: "Parts Bike" a '77 rebuild thread
Posted: Fri Jul 16, 2021 8:12 am
I don't see how to check the torque on these but okay. I'll have to go by feel.
Also, should anything go on these threads? Anti-seize? Loctite? a little grease?
Re: "Parts Bike" a '77 rebuild thread
Posted: Fri Jul 16, 2021 2:07 pm
robbie202, good on you for procuring the new valve lash adjuster parts!
You will require an inch/pound torque wrench to accurately set the adjuster screw 'lock' nuts' torque specification . No need to apply anything to the adjuster screw and nut. Clean threads and drop of oil on the threads is adequate.
anyways..
Here's a link to the Honda GL1000 Shop Manual. Pages 33 and 34 will give you all the information you need for Valve Lash Clearance Adjustments.
http://www.goldwingworld.com/pages/GL10 ... manual.pdf
Re: "Parts Bike" a '77 rebuild thread
Posted: Sat Jul 17, 2021 3:19 pm
no you'd be correct if you sensed that lol.
Now........ about valve lash clearance adjustment procedures. Respectfully speaking to you, I kinda sense valve lash clearance adjustment isn't one of your normally practiced skills. Perhaps I'm incorrect.
anyways..
10 foot pounds is 120 inch pounds so i have a torque wrench that is within spec on the lowest setting. however it is the socket type and it would cover up the slot in the adjuster.
it looks to me like i would need an open-end torque wrench or crow-foot tips to get an accurate torque on the lock nut WHILE simultaneously holding the threaded adjuster in place with a screwdriver.
Re: "Parts Bike" a '77 rebuild thread
Posted: Sat Jul 17, 2021 7:04 pm
robbie202 wrote: ↑Sat Jul 17, 2021 3:19 pmno you'd be correct if you sensed that lol.
Now........ about valve lash clearance adjustment procedures. Respectfully speaking to you, I kinda sense valve lash clearance adjustment isn't one of your normally practiced skills. Perhaps I'm incorrect.
anyways..
10 foot pounds is 120 inch pounds so i have a torque wrench that is within spec on the lowest setting. however it is the socket type and it would cover up the slot in the adjuster.
it looks to me like i would need an open-end torque wrench or crow-foot tips to get an accurate torque on the lock nut WHILE simultaneously holding the threaded adjuster in place with a screwdriver.
Re: "Parts Bike" a '77 rebuild thread
Posted: Sun Jul 18, 2021 9:26 am
It looks as if we are about at the same stage in our builds. I didn't do a full frame restore, but I ran into the same neglect and abuse of heads by the former owner. Mine has had broken timing belts on each side, with hammered valves. Just curious if the machine shop lapped in new valves or refurbished the old. I was told that the valve seats could be lapped, but not ground. BTW, your heads look clean enough to set on the coffee table without the rest of the family complaining too much.
Re: "Parts Bike" a '77 rebuild thread
Posted: Sun Jul 18, 2021 11:48 am
sparkyrasmus wrote: ↑Sun Jul 18, 2021 9:26 am It looks as if we are about at the same stage in our builds. I didn't do a full frame restore, but I ran into the same neglect and abuse of heads by the former owner. Mine has had broken timing belts on each side, with hammered valves. Just curious if the machine shop lapped in new valves or refurbished the old. I was told that the valve seats could be lapped, but not ground. BTW, your heads look clean enough to set on the coffee table without the rest of the family complaining too much.
Valve seats can be ground. The valves themselves cannot be ground as they have a stellite coating on them.
Re: "Parts Bike" a '77 rebuild thread
Posted: Sun Jul 18, 2021 12:19 pm
well technically this is not a "full frame restore" either since i left the engine block in the frame. everything else came off.sparkyrasmus wrote: ↑Sun Jul 18, 2021 9:26 am It looks as if we are about at the same stage in our builds. I didn't do a full frame restore, but I ran into the same neglect and abuse of heads by the former owner. Mine has had broken timing belts on each side, with hammered valves. Just curious if the machine shop lapped in new valves or refurbished the old. I was told that the valve seats could be lapped, but not ground. BTW, your heads look clean enough to set on the coffee table without the rest of the family complaining too much.
i don't really know what the machine shop did i just gave them all the old parts and new seals and it came back refurbished.
www.precision-engine.com
Re: "Parts Bike" a '77 rebuild thread
Posted: Sun Jul 18, 2021 1:16 pm
An Impressive 'machine shop' there!robbie202 wrote: ↑Sun Jul 18, 2021 12:19 pmwell technically this is not a "full frame restore" either since i left the engine block in the frame. everything else came off.sparkyrasmus wrote: ↑Sun Jul 18, 2021 9:26 am It looks as if we are about at the same stage in our builds. I didn't do a full frame restore, but I ran into the same neglect and abuse of heads by the former owner. Mine has had broken timing belts on each side, with hammered valves. Just curious if the machine shop lapped in new valves or refurbished the old. I was told that the valve seats could be lapped, but not ground. BTW, your heads look clean enough to set on the coffee table without the rest of the family complaining too much.
i don't really know what the machine shop did i just gave them all the old parts and new seals and it came back refurbished.
www.precision-engine.com
A Little place around the corner?