Search found 39 matches

by helmet hair
Tue Jun 07, 2011 5:20 pm
Forum: Technical Discussion
Topic: Front brake caliper problem? Or something different?
Replies: 8
Views: 5159

Re: Front brake caliper problem? Or something different?

Just thinking about Volkers idea about the glass plate, if you have a set of feeler gauges you can try sliding a really thin blade between the glass and rotor face to see if its warped anywhere, if you find a gap, gradually add blades until it wont go under and you'll get a fix on how much warp ther...
by helmet hair
Mon Jun 06, 2011 2:54 pm
Forum: Technical Discussion
Topic: Front brake caliper problem? Or something different?
Replies: 8
Views: 5159

Re: Front brake caliper problem? Or something different?

Hope the links are useful, I recently was in contact with a guy from italy, he had a similar problem, give this a bit of thought, it might be the case that there is a build up of hard residue in the piston seal grooves in the caliper, if this is happening it will gradually compress the seal tighter ...
by helmet hair
Sat Jun 04, 2011 4:01 am
Forum: Technical Discussion
Topic: Front brake caliper problem? Or something different?
Replies: 8
Views: 5159

Re: Front brake caliper problem? Or something different?

If you can get the caliper off the rotor before opening up the brake system you should be able to pump the pistons clear using the hydraulic method with the brake lever, it wont matter if the fluid wont return as you are already heading for a system strip down anyway. Try this one to start with, it ...
by helmet hair
Sat Jun 04, 2011 3:21 am
Forum: Technical Discussion
Topic: Front brake caliper problem? Or something different?
Replies: 8
Views: 5159

Re: Front brake caliper problem? Or something different?

sounds like you might have a couple of issues going on with this, you haven't said how often the bike gets used, if its been standing for while this could cause the pistons to sieze in the calipers especially if its been kept outside or in a damp garage. old fluid can be a problem, so can residue bu...
by helmet hair
Sun Apr 17, 2011 4:17 pm
Forum: General Discussion
Topic: 1982 US spec nighthawk side panels & decals
Replies: 45
Views: 27403

Re: 1982 US spec nighthawk side panels & decals

Hi Eliot, new panels for these appear to be non existent, constant searches on ebay have proved fruitless and it seems the only way you are going to get one is either getting one from a bike that's being broken up or someone is willing/able to make you one from a decent original, either fibre glass ...
by helmet hair
Tue Mar 22, 2011 3:17 pm
Forum: Technical Discussion
Topic: Safe, Simple Chemical removal of busted taps\bolts\etc.
Replies: 4
Views: 3026

Re: Safe, Simple Chemical removal of busted taps\bolts\etc.

my mate says it's witchcraft and I should be burned at the stake :twisted:
by helmet hair
Tue Mar 22, 2011 2:29 pm
Forum: Technical Discussion
Topic: front brake caliper bleed nipple, what size thread
Replies: 2
Views: 2707

Re: front brake caliper bleed nipple, what size thread

I think I've finally got to the bottom of it, so in case anyone else needs this info it looks like its going to be 7mm diameter with 1mm pitch, got some input from the guys on the SOHC4 forum, original Honda part number 45224413003, eventually ordered the parts from a main dealer after 2 failed atte...
by helmet hair
Sat Mar 19, 2011 7:18 am
Forum: Technical Discussion
Topic: Safe, Simple Chemical removal of busted taps\bolts\etc.
Replies: 4
Views: 3026

Safe, Simple Chemical removal of busted taps\bolts\etc.

I've 'borrowed' this from the SOHC4. net site as I could have done with knowing about this a couple of weeks ago, having read the posts on there it seems to have been verified, read on and see what you think, its a verbatum cut & paste from the article on that site Petty much everyone has been t...
by helmet hair
Sat Mar 19, 2011 4:12 am
Forum: Technical Discussion
Topic: front brake caliper bleed nipple, what size thread
Replies: 2
Views: 2707

front brake caliper bleed nipple, what size thread

during a rebuild of my brake calipers one of the bleed nipples sheared off as it was siezed into the caliper body, that has now been removed by an engineering firm but the new bleed nipple, advertised as being suitable for my bike wont lead into the port. the replacement nipple seems to be 8mm dia w...
by helmet hair
Thu Mar 10, 2011 6:08 am
Forum: General Discussion
Topic: Paint job "how to" question
Replies: 2
Views: 2581

Paint job "how to" question

I am wanting/needing to respray my petrol tank and body panels on my '82 650 Nighthawk, my question is mainly around correctly applying the decals. Im no expert on paint jobs, hence the question. Once Ive sprayed the paint onto the tank/panels is there anything else I need to do in terms of sealing ...
by helmet hair
Mon Feb 14, 2011 4:12 am
Forum: General Discussion
Topic: 1982 US spec nighthawk side panels & decals
Replies: 45
Views: 27403

Re: 1982 US spec nighthawk side panels & decals

Everest, you are an absolute star for finding this site, I'd given up hope of finding a decal set for my Nighthawk, welcome to the forum.
Chris, thanks letting me know about this post, really appreciated :D
by helmet hair
Sun Feb 06, 2011 5:04 am
Forum: Technical Discussion
Topic: front brake calliper and master cylinder overhaul
Replies: 12
Views: 7464

Re: front brake calliper and master cylinder overhaul

Ok, I've got all 4 pistons out of the caliper's, after a bit of head scratching I came up with the idea of using a 22mm socket, a G clamp and a piece of wet suit neoprene to blank off the piston bore that I already pumped out. The wrench end of the 22mm socket is a couple of mil larger diameter than...
by helmet hair
Wed Feb 02, 2011 5:42 pm
Forum: Technical Discussion
Topic: front brake calliper and master cylinder overhaul
Replies: 12
Views: 7464

Re: front brake calliper and master cylinder overhaul

Thanks for the tips, gonna try Mainerider's compressed air approach as I have a scuba tank I can hook up an air gun to
by helmet hair
Tue Feb 01, 2011 2:48 pm
Forum: Technical Discussion
Topic: front brake calliper and master cylinder overhaul
Replies: 12
Views: 7464

Re: front brake calliper and master cylinder overhaul

Ok a bit of tech spec for you so far. I've managed to pump the pistons out to what looks like the limit of the inner seal judging by the teeny seep of hydraulic fluid from one of the pistons. I have a 10mm thick brake pad set between the piston ends and the inside frame of the calliper stopping the ...
by helmet hair
Tue Feb 01, 2011 12:37 pm
Forum: Technical Discussion
Topic: front brake calliper and master cylinder overhaul
Replies: 12
Views: 7464

Re: front brake calliper and master cylinder overhaul

Hi Volker, thanks, yes 2 pistons in each of the 2 callipers.
CB, am I right in thinking you mean use a grease gun to pump the pistons clear from the calliper body if the callipers are already separated from the hoses ?

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