Fangs "new" toy!!

Post by **creedxup** » Fri Jan 20, 2012 8:09 pm

I've tried those stainless nipples before, unfortunately, the angle is of the pointed sealing end is wrong and they leak,

On the original, the whole of the pointy end is used to make the seal, the new ones only contact the caliper in a small area.

Teego · Post by **Teego** » Fri Jan 20, 2012 10:41 pm

creedxup wrote:I've tried those stainless nipples before, unfortunately, the angle is of the pointed sealing end is wrong and they leak,

On the original, the whole of the pointy end is used to make the seal, the new ones only contact the caliper in a small area.

AAAAAAAAAAAAAARRRRRRRRRRRGGGGGGGGGGGGGHHHHHHHHNNNOO

fang · Post by **fang** » Fri Jan 20, 2012 10:46 pm

Arse, Shit, bollocks and piss!!!!

Hmmm, may have to see if I can alter the chamfer using my lathe (pedestal drill and file

)

Will let you know how it goes!!

Post by **nugget** » Sat Jan 21, 2012 10:26 am

fang wrote:Arse, Shit, bollocks and piss!!!!

Hmmm, may have to see if I can alter the chamfer using my lathe (pedestal drill and file )

Will let you know how it goes!!

ARSE, SHIT, BOLLOCKS and PISS from me too. I bought these a while ago but I haven't got round to fitting them yet. At least I have the right pitch but what chuffin good is that now??

I know fang I'll pop mine in the post. You're pretty handy with a angle grinder.

Post by **nugget** » Sat Jan 21, 2012 10:39 am

Bye te way fang. That garage of yours is a bit of a blinder

fang · Post by **fang** » Sun Jan 22, 2012 3:43 pm

nuggitt wrote:Bye te way fang. That garage of yours is a bit of a blinder

I see what you did there

fang · Post by **fang** » Sun Jan 22, 2012 3:47 pm

nuggitt wrote:
ARSE, SHIT, BOLLOCKS and PISS from me too. I bought these a while ago but I haven't got round to fitting them yet. At least I have the right pitch but what chuffin good is that now??

I know fang I'll pop mine in the post. You're pretty handy with a angle grinder.

As long as mine don't leak your more than welcome to send them over.

fang · Post by **fang** » Sun Jan 22, 2012 4:26 pm

Right then, spent a little while in the garage yesterday seeing if i could "machine

" the bleed nipples.

So, first of all I set about measuring the differance between the two.

Original

Replacement

Next I set up a jig to match the angle of the original nipple.

Then used a file held flat against the jig to "machine"

the new chamfer.

Finished off with a bit of fine wet and dry

Jobs a good un
Original on left, "machined" in middle, non machined on right.

So now I have five correctly chamfered bleed nipples, will let you know if they leak once its all plumbed in.

Post by **creedxup** » Sun Jan 22, 2012 4:37 pm

I think the original nipple has a larger diameter between the taper and the thread and the taper goes down to a point.

I don't know whether it matters but it would probably be better to exactly duplicate the original shape/dimensions ???

dieffe · Post by **dieffe** » Sun Jan 22, 2012 4:38 pm

Might have to do that.
Is it not possible to buy the correct bleed nipples though?

Post by **creedxup** » Sun Jan 22, 2012 4:39 pm

creedxup wrote:I think the original nipple has a larger diameter between the taper and the thread and the taper goes down to a point.

I don't know whether it matters but it would probably be better to exactly duplicate the original shape/dimensions ???

Sorry, I meant that the original has a SMALLER diameter between the threads and taper.

Oh for an edit function.

fang · Post by **fang** » Sun Jan 22, 2012 5:50 pm

I think it should be ok, just been out and measured the relevant parts.

You are correct about the diameter, but the original is only .25 of a mm smaller, so in effect the replacement with a greater diameter will have a wider seat to seal with.

And I hear what your saying about the point of the nipple, oo er

, but the hole in the slave cylinder, which is the same on the calipers, is 3mm and the taper, although not finishing in a point, tapers to a diameter smaller than the hole it has to seal, so there should be no issue with leaks, especially now that the angle of the taper matches.

If after all this they do leak I will obviously put the original ones back in and see if I can source some more stainless replacements, but hopefully that wont be neccesary.

dieffe · Post by **dieffe** » Sun Jan 22, 2012 6:17 pm

I put stainless bleed nipples in my XJRs without issue and never even considered the angles might be wrong. The brakes always bled up fine and I never had a leaking problem, just lucky I guess.

Post by **nugget** » Mon Jan 23, 2012 2:08 pm

PM sent fang

fang · Post by **fang** » Wed Jan 25, 2012 12:04 pm

As I have no provision for a temperature gauge I finally ordered the replacement radiator fan switch yesterday, Its a Subaru part (OEM part no 83052-GA040),(Intermotor part no 50455), exactly the same as the standard Yamaha item, but cuts the fan in at 95c instead of 105c

So with this on order I now had the added incentive to replace my inlet rubbers and check the o rings between the inlet manifolds and the head, as all the above mean draining the coolant!

So out with the cat litter tray (clean

) and away we go.

Coolant saved in plastic bottles I had saved from the recycle bin "just incase"

Off with the thermostat housing, as this prevents the removal of the inlet manifolds, and thus necessitates the need to droop the coolant.

Then off with the manifolds

All the O rings seemed OK, no obvious flat spots. So just to be sure I cleaned all the faces and O rings and rebuilt with a little gasket sealant on the faces to ensure a good seal.

Replaced the inlet rubbers and reassembled.

So with this done I then set about fitting the clutch hose and Speed Triple brake hoses.
Managed to get them on and routed in a way that they don't rub or get caught on anything they shouldn't, even jacked the front end off the ground to make sure there was adequate freeplay in the length just incase I ever manage to wheelie this once on the road (not very likely TBH, knee down = no problem, wheelies = hopeless

)

Anyway, that was yesterdays update, so today I will see if my re-machined bleed nipples don't leak as I bleed up the front brake and clutch