Spoiler alert. Seats have a special coating on them, and can not be groundleggman wrote:The cylinders look good, Just make sure the valve seats are not pitted or they will have to be reground or replaced. Be very careful cleaning the gasket material off. Its really easy to scratch up the aluminum heads. I used single edged razor blades and scotch brite pads.
Seized 81 GL1100
Moderators: CYBORG, Oldewing, robin1731, Forum Moderators
- CYBORG
- Moderator
- Posts: 24552
- Joined: Mon Jan 14, 2008 12:52 pm
- Location: Muskegon mich
Re: Seized 81 GL1100
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- robin1731
- Membership Admin
- Posts: 21729
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: Seized 81 GL1100
The valves are coated. The seats are not. They can be cut. Valves cannot be ground.CYBORG wrote:Spoiler alert. Seats have a special coating on them, and can not be groundleggman wrote:The cylinders look good, Just make sure the valve seats are not pitted or they will have to be reground or replaced. Be very careful cleaning the gasket material off. Its really easy to scratch up the aluminum heads. I used single edged razor blades and scotch brite pads.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- CYBORG
- Moderator
- Posts: 24552
- Joined: Mon Jan 14, 2008 12:52 pm
- Location: Muskegon mich
-
- Zinc Member
- Posts: 39
- Joined: Wed Aug 01, 2018 2:58 am
- Location: Langley, BC, Canada
Re: Seized 81 GL1100
So should I try to lap the seat with the old valve to clean it up? Or am I going to need a machine shop?
Edit: here's the seat after scotchbrite.
Second edit: have any of you guys used the roloc bristle discs for cleaning the heads? They're nylon or something, internet says they're good for aluminum.
Edit: here's the seat after scotchbrite.
Second edit: have any of you guys used the roloc bristle discs for cleaning the heads? They're nylon or something, internet says they're good for aluminum.
Nick
1981 GL1100 - Currently not running..
1981 GL1100 - Currently not running..
- OCR
- Chrome Member
- Posts: 189
- Joined: Fri Jun 22, 2018 1:22 am
- Location: Finger Lakes of CNY
Re: Seized 81 GL1100
Lapping will not fix that, it will need to be cut slightly and then the valve lapped to match.
79 CX500custom
76LTD
77Goldwing
2001 Polaris Scrambler 500 4X4
Secretary Caroline Lodge 681
76LTD
77Goldwing
2001 Polaris Scrambler 500 4X4
Secretary Caroline Lodge 681
-
- Zinc Member
- Posts: 39
- Joined: Wed Aug 01, 2018 2:58 am
- Location: Langley, BC, Canada
Re: Seized 81 GL1100
Is that a me job? Or a shop job?OCR wrote:Lapping will not fix that, it will need to be cut slightly and then the valve lapped to match.
Nick
1981 GL1100 - Currently not running..
1981 GL1100 - Currently not running..
- robin1731
- Membership Admin
- Posts: 21729
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: Seized 81 GL1100
Machine shop. Have them check valve stem to valve guide clearance while they are there. Do all the seats in both heads. You could lap the valves yourself if you have the tools and know how. Or they can do it. Just be sure to tell them not to grind the valves.Perfikt wrote:Is that a me job? Or a shop job?OCR wrote:Lapping will not fix that, it will need to be cut slightly and then the valve lapped to match.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
-
- Zinc Member
- Posts: 39
- Joined: Wed Aug 01, 2018 2:58 am
- Location: Langley, BC, Canada
Re: Seized 81 GL1100
That's what I figured after looking it up.
There's someone with an ad in Portland that says they do bead blasting, change guides, change stem seals and grind the valves all for $380 (I think) for the set. Is that someone from here?
I haven't pulled the second head yet, if I take it to a machine shop out here is there any info I need to give them?
Edit: https://m.ebay.com/itm/HONDA-GOLD-WING- ... 1187187898 Ebay link
There's someone with an ad in Portland that says they do bead blasting, change guides, change stem seals and grind the valves all for $380 (I think) for the set. Is that someone from here?
I haven't pulled the second head yet, if I take it to a machine shop out here is there any info I need to give them?
Edit: https://m.ebay.com/itm/HONDA-GOLD-WING- ... 1187187898 Ebay link
Nick
1981 GL1100 - Currently not running..
1981 GL1100 - Currently not running..
- robin1731
- Membership Admin
- Posts: 21729
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: Seized 81 GL1100
1. Guides rarely need to be replaced. Sometimes they do but it is fairly rare.
2. If the guy says he is grinding valves that is a shop to avoid. You do not grind valves on these. They have a stellite coating on them. Grind it off and the valves can wear out pretty quickly.
I just rebuilt some heads for rcmatt. You can ask him what he thought of the work. Did much of the same things that guy says he does. Yours would need the seat cut, his did not. His did not need guides. I've replaced guides in one set of heads in the 15 sets or so I've rebuilt. Cast iron valve guides hold up very well in stock engines.
.
2. If the guy says he is grinding valves that is a shop to avoid. You do not grind valves on these. They have a stellite coating on them. Grind it off and the valves can wear out pretty quickly.
I just rebuilt some heads for rcmatt. You can ask him what he thought of the work. Did much of the same things that guy says he does. Yours would need the seat cut, his did not. His did not need guides. I've replaced guides in one set of heads in the 15 sets or so I've rebuilt. Cast iron valve guides hold up very well in stock engines.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
-
- Zinc Member
- Posts: 39
- Joined: Wed Aug 01, 2018 2:58 am
- Location: Langley, BC, Canada
Re: Seized 81 GL1100
The valve grinding might have been a mistake on my side, I meant valve seats.robin1731 wrote:1. Guides rarely need to be replaced. Sometimes they do but it is fairly rare.
2. If the guy says he is grinding valves that is a shop to avoid. You do not grind valves on these. They have a stellite coating on them. Grind it off and the valves can wear out pretty quickly.
I just rebuilt some heads for rcmatt. You can ask him what he thought of the work. Did much of the same things that guy says he does. Yours would need the seat cut, his did not. His did not need guides. I've replaced guides in one set of heads in the 15 sets or so I've rebuilt. Cast iron valve guides hold up very well in stock engines.
.
This is all excellent information, thank you very much. I found a local machine shop that might be able to help, says he needs to see the heads first. I'll try toget them down to him this week.
On a side note, would it be prudent to get all the seats ground? Or just the one(s) that show wear?
Nick
1981 GL1100 - Currently not running..
1981 GL1100 - Currently not running..
- robin1731
- Membership Admin
- Posts: 21729
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: Seized 81 GL1100
No, the ad says they grind the valves.
Yes, get all the seats cut.
Yes, get all the seats cut.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- rcmatt007
- Treasurer
- Posts: 31316
- Joined: Fri Oct 21, 2005 12:48 pm
- My Album: http://www.ngwclub.com/gallery/v/wingmans/rcmatt007/
- Location: New River Valley, Virginia
Re: Seized 81 GL1100
Robin did excellent work for me.... including putting a helicoil into the head bolt hole tat the PO stripped out about 39 years ago
-Rodger-
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
- robin1731
- Membership Admin
- Posts: 21729
- Joined: Mon May 29, 2006 8:31 am
- Location: Decatur, Indiana
Re: Seized 81 GL1100
rcmatt007 wrote:Robin did excellent work for me.... including putting a helicoil into the head bolt hole tat the PO stripped out about 39 years ago
hhhmmmmmm, the PO.
.
1976 Goldwing Super Sport
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
1985 Honda Elite
1976 KZ900 Dragbike
1992 ZX7 Dragbike (KZ900 style motor w/NOS)
and a rotation of various purchases
Randakk approved Carb Rebuilder
- rcmatt007
- Treasurer
- Posts: 31316
- Joined: Fri Oct 21, 2005 12:48 pm
- My Album: http://www.ngwclub.com/gallery/v/wingmans/rcmatt007/
- Location: New River Valley, Virginia
Re: Seized 81 GL1100
Always blame the PO
-Rodger-
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
- chewy999
- SUPER BIKER!!!!
- Posts: 3214
- Joined: Tue Oct 16, 2012 11:21 am
- Location: Haddenham, Cambs, UK
Re: Seized 81 GL1100
But how long can you own a bike and still blame a PO?rcmatt007 wrote:Always blame the PO
Previous Rides,
1980 CB250N Good to learn on
1981 CX500 good mid range tourer, went to Austria on it!
1983 GL1100C Pride and joy, sold when I bought my 1st house, big mistake
1985 GL650 Silverwing another mistake, horrible bike
1986 CBX550 Good commuter
1989 Suzuki GS750 (1976) cheap and cheerful until a dog ran out in front of me on Xmas Eve, 1991
Current bikes
2010 CB1300 back on a bike after 19 years, two divorces, children grown up etc
1980 GL1100 NOW ON THE ROAD, still use CB1300.
1980 CB250N Good to learn on
1981 CX500 good mid range tourer, went to Austria on it!
1983 GL1100C Pride and joy, sold when I bought my 1st house, big mistake
1985 GL650 Silverwing another mistake, horrible bike
1986 CBX550 Good commuter
1989 Suzuki GS750 (1976) cheap and cheerful until a dog ran out in front of me on Xmas Eve, 1991
Current bikes
2010 CB1300 back on a bike after 19 years, two divorces, children grown up etc
1980 GL1100 NOW ON THE ROAD, still use CB1300.
-
- Similar Topics
- Replies
- Views
- Last post
-
- 2 Replies
- 1299 Views
-
Last post by mikenixon
-
- 82 Replies
- 3249 Views
-
Last post by sphen
-
- 3 Replies
- 195 Views
-
Last post by salukispeed
-
- 9 Replies
- 293 Views
-
Last post by renof