Cap tappet adj loose and leaking oil around it.


Information and questions on GL1000 Goldwings (1975-1979)
Post Reply
joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Cap tappet adj loose and leaking oil around it.

Post by joshmobley »



what caused this leak and how I fix it. The leak is at the rear alternator case. My battery was just killed, does this mean I have to remove the engine to fix and do I have to rebuild or what? What does the tappet actually do? I have a feeling this is the result of some kind of internal failure that is going to be a big pain in the ass. Really some help with this because I can't find anything about it anywhere except for buying the actual part. Thank you to whomever can enlighten me.



User avatar
dingdong
Posts: 3967
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Cap tappet adj loose and leaking oil around it.

Post by dingdong »

Not sure what you are referring to by Cap tappet adj. Is it the access cap for the stator bolt? Gl1000 doesn't have a true alternator. If so there is an o-ring on the cap that seals when tightened down. If the cap was loose I would remove it and check o-ring.

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

Thats its referred to on the oem parts suppliers. Why won't it tighten down? Is something broke or did it loosen so much that part of it fell inside the rear case? I hope not, really don't won't to have to take engine out.

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

I'm very mechanically inclined but, this is my first bike and I'm still learning about bikes and how much of a pain they can be to work on.

User avatar
DenverWinger
Posts: 1562
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Cap tappet adj loose and leaking oil around it.

Post by DenverWinger »

Might've stripped the threads in the cap, they're not very strong. Just get a new one, they're used on a bevy of different bikes and commonly available at Honda dealer for cheap.

With a sharp tool you can pick out the remnants of the cap threads from the mating threads in the engine housing.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

Thanks to both of you for your help, I haven't tied to screw it back on yet. I wanted to know how and what it went to first. The threads might be ok. I'll find out here shortly and will let you know. Not knowing what happened and what it it did made me hesitant about doing anything to it. All I do know is that it wasn't that way a few days ago.

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

The cap is gone and the bolt to the stator is sticking out of the hole. The bolt will not tighten or loosen. The bolt is hitting something, I'm assuming it's the shaft to the stator or whatever keeps the stator in place. Can this bolt just be screwed back in or do I have to take off the rear case? Hope it's simple but, my luck I'll have to remove the engine to fix it and something else will be wrong. Keeping my fingers crossed. Help please!!!

User avatar
DenverWinger
Posts: 1562
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Cap tappet adj loose and leaking oil around it.

Post by DenverWinger »

Ya, bolt needs screwed back in. You can put bike in 5th gear and have someone step on the rear brake if screwing the bolt in just turns the engine over.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

If I can't get the bolt to line up so I can screw it back in, my only choice is to remove the engine and rear case to screw it back in isn't it?

User avatar
DenverWinger
Posts: 1562
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Cap tappet adj loose and leaking oil around it.

Post by DenverWinger »

You should be able to get the bolt in without removing the engine. Takes patience.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

Denverwinger can you be more specific. Put it in 5th gear with the engine running I'm guessing. That's why I need someone to put their foot on the rear brake while I try to get the bolt to line up and screw in. May be a dumb question but, to me the only dumb question is the one that is not asked and something is overlooked or can cause many other problems. Safe than sorry...

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

There is a lot of patience at times and there is -0 at times. Usually have a lot most of the time but, ever since I bought this bike, I fix or replace something and before I'm finished with that one thing here's another slap in the face. More money, time, and hopefully patience.

User avatar
DenverWinger
Posts: 1562
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Cap tappet adj loose and leaking oil around it.

Post by DenverWinger »

Put in gear with engine off, holding rear brake. This prevents engine from turning when you go to torque that bolt down.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

Ok, thanks. Maybe somebody can tell why access is needed to the bolt in the original design unless this is a common thing with Goldwings or bikes in general. Seems like to me without the hole in the rear case this would not be able to happen. I do not know a lot the reasoning behind certain designs or engineering of the combustion engine but, it seems like an unnecessary hole in the rear case. Anyway, thank you for your help!

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

I hope I can get it to line up.

User avatar
dingdong
Posts: 3967
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Cap tappet adj loose and leaking oil around it.

Post by dingdong »

It's a timing thing. Allows the operator to rotate the engine without removing the timing covers to access the crank bolt. You can time the belts on gl1200s, gl1100s and gl1000s as well as the points on the gl1000s. Also rotate the engine to adjust the points.
Edit: Long story short it is an easy method to rotate the engine with a wrench.

joshmobley
Posts: 14
Joined: Wed Sep 25, 2019 7:53 pm
Location: Alabaster, AL
Motorcycle: 1979 GL1000

Re: Cap tappet adj loose and leaking oil around it.

Post by joshmobley »

Cool, thanks for everyone's help. Crossing my fingers on getting the bolt lined up and torched. Would anyone know what the torch specs are on the bolt. I downloaded a repair manual for it but, I didn't see it. I could have overlooked it or maybe its not in the manual I downloaded. Either way that info would be greatly appreciated.

User avatar
dingdong
Posts: 3967
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: Cap tappet adj loose and leaking oil around it.

Post by dingdong »

Torque is 58 to 65 ftlbs.



Post Reply