78 GL front brakes


Information and questions on GL1000 Goldwings (1975-1979)
  • Sponsored Links
CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

78 GL front brakes

Postby CB650AD » Fri Nov 20, 2015 2:12 pm



hello,
i bought a 78 GL1000 complete front end, to put on my 79 Cb650. I took it apart to paint forks, and calipers. now i cannot install the calipers back on the forks. i have the manual however the bolt wholes on the calipers do not line up with the wholes on the forks. i am in shock i dont understand it. i will post pictures of parts. but it looks like i have everything.






User avatar
spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: 78 GL front brakes

Postby spiralout » Sat Nov 21, 2015 8:50 pm

My old 1000 isn't at the house right now so I can't go check but from just looking at your pics, you have your calipers on the opposite side brackets. The banjo bolt should be on the side away from the fork and at a downward angle. As to why the bolt holes aren't lining up, I couldn't tell you without looking.

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Sun Nov 22, 2015 8:03 am

As well as the above,
my first question would be - were the calipers fitted to the forks when you got the front end? Because it looks to me that you have 78-79 forks and 75-77 calipers and brackets. The late calipers are one piece castings. If yours have two Allen bolts holding the caliper halves together, you have a set of early ones.
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Mon Nov 23, 2015 10:32 am

yes the front end was one piece. i bought it from Bent bike in Lynnwood Wa, i watched the guy unbolt and drop it front the triple tree. when i got home i took everything a part so i can clean and paint. this was done last summer. Now i started to put everything back on the bike and this happened. yes i have 2 allen M5 bolts holding the caliper together, and then 2 like 16 mm bolts that hold the mounting bracket to the forks.

User avatar
Maz
Posts: 236
Joined: Tue May 19, 2015 4:43 am
Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200

Re: 78 GL front brakes

Postby Maz » Mon Nov 23, 2015 12:12 pm

If they DEFINITELY came off those forks, remove the brackets from the calipers and try different orientations to make the brackets fit on the forks first. Somewhere in the back of my brain, I seem to remember this problem and the calipers were bolted on the brackets wrong. I'm happy to be corrected, though! :oops:

Maz
Nostalgia is not what it used to be!

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Mon Nov 23, 2015 12:31 pm

will do later on today, I have spent whole weekend trying to fit them. it seem impossible the caliper mounting plate botl holes are too far apart then the ones on the forks. almost like one inch difference.

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Mon Nov 23, 2015 12:56 pm

OK, let's try this again:

This is a 78-79 one piece left hand caliper, no bolts. If yours has bolts it is the early 75-77 version



This that caliper along with it's correct left hand bracket bracket



This the 79 caliper, 79 bracket and a 76 bracket (same as yours)



I'm sorry but there is no way that caliper & bracket came off those forks. The calipers will interchange as far as the bolts go but the early ones are sized for the thick 7mm disc with the wider wire wheel and the early sliding bolts are about 0 .060" too long for the late caliper brackets.

Which incidentally brings up another question. What front wheel are you trying to fit?
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Tue Nov 24, 2015 11:59 am

i have to the OEM DD 19 inch spoked wheel . I bought the whole front end of a 79 GL1000. im building a 79 CB650 cafe bike. I got the GL1000 front end because it has dual disc brakes and spoked rim. for the rear im using a 750 K DD Rim 18 inch spoked. will these bolt on my forks? i can buy for 150 USD

User avatar
Ncscooter
Posts: 53
Joined: Wed Jun 17, 2015 11:20 am
Location: North Carolina
Motorcycle: 77 GL1000
76 CB400F

Re: 78 GL front brakes

Postby Ncscooter » Tue Nov 24, 2015 2:09 pm

Is the left one different than the right one? And the 79 had comstars, not spokes, as mentioned above.
Keep your expectations tiny and you won't end up so whiny.

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Tue Nov 24, 2015 4:40 pm

OK, now you really have me confused.
You appear to have 78-79 front forks, or at least, the sliders of those years have been fitted. That can be done to the early forks.
You have the brakes off a 75-77
You have a 75-77 spoked wheel
For a front end off 78-79 you would have had a Comstar wheel and the calipers and brackets as per your latest picture.

Anyway:
The spoked wheel will fit the late forks. The axle is the same but the spacer and the nut are both 5mm shorter, as the spoked wheel is wider than the Comstar. Did you actually see the spoked wheel fitted to those forks?
The late calipers are too narrow for the thicker spoked wheel discs. The disc might just go in but you are then looking for thinner pads. You could try fitting the early calipers with the late brackets and see how that lines up.
Also, to centralise the the rotors on the calipers you will probably have to have the bracket pads on the fork sliders machined down (about 0.125" if I remember correctly).
Also the speedo drive is on the opposite side. You will need the early drive unit.

Enough to be going on with.
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Tue Nov 24, 2015 6:34 pm

Thank you for info. Yes I was next to bike in shop while tech was unbloting the front end. And rolled it to my truck. Are comstar the non spoked alum wheel. Like on my cb650?. And the bike I got it from is all original it has 18k.

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Tue Nov 24, 2015 6:35 pm

Which part is confusing.

User avatar
Ncscooter
Posts: 53
Joined: Wed Jun 17, 2015 11:20 am
Location: North Carolina
Motorcycle: 77 GL1000
76 CB400F

Re: 78 GL front brakes

Postby Ncscooter » Tue Nov 24, 2015 6:53 pm

old fogey has comstars maz has spokes on their avatar pictures
Keep your expectations tiny and you won't end up so whiny.

CB650AD
Posts: 7
Joined: Fri Nov 20, 2015 2:08 pm
Location: kirkland, Wa, USA
Motorcycle: 79 CB650, 02 CBR 954RR 09 Vulcan 900 Custom

Re: 78 GL front brakes

Postby CB650AD » Tue Nov 24, 2015 7:04 pm

the tag on the bike said 79. thats what im going off. did the 78 had the spoke wheels?

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Wed Nov 25, 2015 2:16 am

No, the 78 had Comstars too.

Ok, lets go back to the beginning. If the bike is all original, with wire wheels, it is/was 75-77.

The problem originated with your caliper brackets. From the angle of the picture it looks like you have the 78-79 fork sliders.
That assumption could be wrong, so let's start by making sure what we have here getting you to measure the distance between the bolt holes on the sliders.
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Mon Nov 30, 2015 11:14 am

So, what happened? Did you get it sorted?
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

Grindl
Posts: 90
Joined: Mon Aug 24, 2015 4:37 pm
Location: Peoria , Arizona
Motorcycle: 1978 GL-1000 , 1983 GL-1100A Aspencade

Re: 78 GL front brakes

Postby Grindl » Tue Dec 01, 2015 5:39 pm

My "78" GL1000 also had Comstar "Mags" ; and it was "built" in Sept 77 . Honda has always had a history of using all available "previous years" model parts until they were down to required "save stores" amounts . A riding "buddy" has a "80" 1100 that has parts on it from 78-79-80 . Hmmm ? :roll:

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Tue Dec 01, 2015 7:13 pm

Grindl wrote:My "78" GL1000 also had Comstar "Mags" ; and it was "built" in Sept 77 . Honda has always had a history of using all available "previous years" model parts until they were down to required "save stores" amounts .


September was /is always Honda's start month for the next years models.
So your 77 build would have had Comstars, as it was the 78 year model that first had them. Nothing strange there.

A riding "buddy" has a "80" 1100 that has parts on it from 78-79-80 . Hmmm ? :roll:


Other than the front brakes, front wheel and some engine parts, none of which are dated, I'm 99% sure that nothing else from the 78-79 1000 fits the 1100. And possibly the rear light, I'd have to check, but it's not dated either. So why does he think that?
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

User avatar
spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: 78 GL front brakes

Postby spiralout » Tue Dec 01, 2015 8:26 pm

Grindl wrote:My "78" GL1000 also had Comstar "Mags" ; and it was "built" in Sept 77 . Honda has always had a history of using all available "previous years" model parts until they were down to required "save stores" amounts . A riding "buddy" has a "80" 1100 that has parts on it from 78-79-80 . Hmmm ? :roll:


What's with all the quotation marks? :P :P :P

Grindl
Posts: 90
Joined: Mon Aug 24, 2015 4:37 pm
Location: Peoria , Arizona
Motorcycle: 1978 GL-1000 , 1983 GL-1100A Aspencade

Re: 78 GL front brakes

Postby Grindl » Thu Dec 03, 2015 1:47 am

Literary point of emphasis , I guess . I read a lot . And payed attention in "Lit" class . :roll:

User avatar
spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: 78 GL front brakes

Postby spiralout » Thu Dec 03, 2015 1:56 am

Grindl wrote:Literary point of emphasis , I guess . I read a lot . And payed attention in "Lit" class . :roll:

Then you should know better :roll: :roll:

Grindl
Posts: 90
Joined: Mon Aug 24, 2015 4:37 pm
Location: Peoria , Arizona
Motorcycle: 1978 GL-1000 , 1983 GL-1100A Aspencade

Re: 78 GL front brakes

Postby Grindl » Thu Dec 03, 2015 3:19 am

Just out of curiosity ; is your life "THAT" boring ? Or do you even have a life at all ? I heard that Trolls just hang out , and bother people . Is it true ?

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Thu Dec 03, 2015 7:36 am

spiralout wrote:
Grindl wrote:Literary point of emphasis , I guess . I read a lot . And payed attention in "Lit" class . :roll:

Then you should know better :roll: :roll:


Ouch! :lol: :lol:
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 78 GL front brakes

Postby Old Fogey » Thu Dec 03, 2015 7:37 am

Grindl wrote:Just out of curiosity ; is your life "THAT" boring ? Or do you even have a life at all ? I heard that Trolls just hang out , and bother people . Is it true ?


I think that, if you check some of his 600odd posts, you will find that he is far from being a troll. :roll:
Image Image

'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

User avatar
spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: 78 GL front brakes

Postby spiralout » Thu Dec 03, 2015 11:57 am

Old Fogey wrote:
Grindl wrote:Just out of curiosity ; is your life "THAT" boring ? Or do you even have a life at all ? I heard that Trolls just hang out , and bother people . Is it true ?


I think that, if you check some of his 600odd posts, you will find that he is far from being a troll. :roll:

Troll? Maybe, maybe not, but if you check my posts, I am an ***hole sometimes (note the use of italics for emphasis).
Now, back to the subject of the mismatched forks and caliper brackets. What'd you figure out, CB650AD?




Return to “GL1000 Information & Questions”




Who is online

Users browsing this forum: No registered users and 2 guests