Author Topic: Honda 750 1975 front brake cable  (Read 1375 times)

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Offline jackhollingsworth1955

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Honda 750 1975 front brake cable
« on: July 12, 2014, 12:49:02 pm »
Hi jack here. New to forum.
Appreciate your help
Front disc caliper seized. Cleaned piston and cylinder. Final step connection brake cable to cylinder won't form seal. Brake fluid leaks out of point where closing screw meets hose. Am I missing a washer or did I strip screws and now won't go down fully
Thanks. Jack

Offline Stev-o

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Re: Honda 750 1975 front brake cable
« Reply #1 on: July 12, 2014, 01:47:31 pm »
Welcome Jack.

Your question is a little confusing and should be posted in the Tech section.

First off, K5 does not have a brake cable, do you mean hose?
Is it leaking where the hard line is connected at the caliper, near the bleeder screw? [The master cylinder is up on the bars]
If yes, that is not a common place for a leak, are the threads buggered in the caliper?

http://www.hondabikes.com/fiche_section_detail.asp
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline jackhollingsworth1955

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Re: Honda 750 1975 front brake cable
« Reply #2 on: July 13, 2014, 12:37:19 pm »
New to this so thanks for advice. Correct. Problem is where hose meets caliper. Screw fails to seal fully and on pumping brake lever, fluid escapes from top of screw.  This is where the rigid brake fluid hose goes into the screw. Should I have found a washer or gasket? Or is the screw not screwing in fully? Screw gets tight before I exhaust all the threads. Will load a video if can get to work.
Thanks
Jack

Offline Stev-o

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Re: Honda 750 1975 front brake cable
« Reply #3 on: July 13, 2014, 01:19:22 pm »
No, there is not a washer or gasket where the hard line attaches to the caliper, it is a compression fitting. 
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline jackhollingsworth1955

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Re: Honda 750 1975 front brake cable
« Reply #4 on: July 13, 2014, 03:16:41 pm »
Hi there. YouTube video posted today. Search YouTube for :
Honda 750 1975 brake hose leak
TFM7WRTZ6L8
Will order New parts Monday
Thanks for advice
Jack

Offline jackhollingsworth1955

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Re: Honda 750 1975 front brake cable
« Reply #5 on: July 13, 2014, 03:39:50 pm »
One last thing. Live in Dublin Ireland. What is best site to order from. Likely  will be from UK.
Thanks. Jack

Offline Stev-o

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Re: Honda 750 1975 front brake cable
« Reply #6 on: July 13, 2014, 04:11:06 pm »
Hi Jack.....I saw your video but can't tell what the issue is.  I would try replacing the hard pipe.
Here's the link to your video...

https://m.youtube.com/watch?v=TFM7WRTZ6L8

Your best bet for ordering parts will most likely be David Silver Spares....

https://www.davidsilverspares.co.uk/CB750K2-FOUR-1972/part_192085/


Once again, you may want to post this issue in the tech section, someone may have had this same issue and offer a solution. 


'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline jackhollingsworth1955

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Re: Honda 750 1975 front brake cable
« Reply #7 on: July 16, 2014, 04:22:14 pm »
Hi thanks to everyone for input. I have a very ordered spares from silver. I have this nearly sorted and I will thank this forum for input then. I will use technical forum in the future for similar issues.

 

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