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| westfieldandy |
 Posted: Mon May 12, 2008 11:05 am |
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Rookie
Joined: 11 Oct 2007
Posts: 9
Location: hurstpierpoint sussex U.K
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does anyone know where to get a replacement rear pagehiln master cylinder.
andy |
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| Tim2005 |
| Posted: Sun May 25, 2008 10:06 pm |
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Member
Joined: 06 Sep 2005
Posts: 43
Location: Norfolk UK
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They're very hard to find indeed, Pagehiln closed down in the early 1980s, presumably the bore has gone on yours? When mine went I ended up going to a Kart racing meeting, as they all use similarish types of integrated m/cyls and found one that kind of fitted ok (doesn't look too great, but it had to do), it's made by LGK:
http://www.lgk.it/
... hopefully your Italian is better than mine.
Since then, I spotted one on a bike on the SOHC4.US site, it looked identical to a Pagehiln but was made by a US firm. It may have been Penske, certainly was a firm I assopciate with Nascar etc. The bike belongs to a member called 736cc on there, it's a red K-series with a Yoshi exhaust. I emailed him about the m/cyl but never got a reply.
Let us know what you end up with. |
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| UKSEELEYHONDAF739 |
| Posted: Thu May 29, 2008 10:37 am |
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Rookie
Joined: 08 May 2008
Posts: 7
Location: NW Kent
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I believe that the PAGEHILN brake master cylinders were a loose copy of the AIRHEART versions that were/ are common in the US dirt track racing scene.
If you go to www.tolomatic.com it seems they still make them..!
The small master cylinder looks identical to those used on our Seeleys and its priced at $127 or an overhaul kit at $40 ish .With the exchange rates thats not a bad price at all...
I havent had much luck with seal kits on mine...still leaks after fitting a LOCKHEED kit,so maybe thats the next option...?
If a few of us want a master cylinder,maybe its worth trying to get a discount deal for a bulk purchase....?After all ,if these are identical to the PAGEHILN versions,thats a lot of potential buyers...?
Hope this helps
Cheers |
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| Satanic Mechanic |
| Posted: Thu May 29, 2008 2:00 pm |
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Moderator
Joined: 04 Sep 2005
Posts: 309
Location: Munich, Germany
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| UKSEELEYHONDAF739 |
| Posted: Fri May 30, 2008 9:42 am |
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Rookie
Joined: 08 May 2008
Posts: 7
Location: NW Kent
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Thanks Axl
At last we have a source for the "problematical" rear master cylinder...would anyone know if US threads/fittings are the same as metric..? I just cant remember if they are.. 
Cheers and safe rides wherever you are |
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| Satanic Mechanic |
| Posted: Fri May 30, 2008 3:47 pm |
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Moderator
Joined: 04 Sep 2005
Posts: 309
Location: Munich, Germany
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From the diagram 
I would say it's non-metric - I hesitate to call it a "standard" thread  but it looks like 1/2-27.
Cheers and keep the rubber side down |
Last edited by Satanic Mechanic on Sat Jun 07, 2008 8:43 pm; edited 1 time in total |
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| Tim2005 |
| Posted: Sat Jun 07, 2008 8:40 pm |
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Member
Joined: 06 Sep 2005
Posts: 43
Location: Norfolk UK
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Excellent find!
That's an odd size thread for a brake fitting, usually I find they are 10x1mm or 10x1.25, indeed mine has a 10x1 fitting which is actually a pressure switch for the brakelight. I wonder if that 1/2" thread could be used with an insert to bring it down to 10mm? |
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| Satanic Mechanic |
| Posted: Sat Jun 07, 2008 8:48 pm |
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Moderator
Joined: 04 Sep 2005
Posts: 309
Location: Munich, Germany
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10x1 or 10x1.25 are the only thread sizes I know for brake lines, too, but the diagram says differently, altough the '1/' part is just wild guessing.  |
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| Tim2005 |
| Posted: Sat Jun 07, 2008 9:14 pm |
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Member
Joined: 06 Sep 2005
Posts: 43
Location: Norfolk UK
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Hmm. Looking at the pic closer, it mentions NTP thread... which is a US tapered thread for air & hydraulic fittings
http://www.engineeringtoolbox.com/npt-national-pipe-taper-threads-d_750.html
The only 27tpi ones are 1/16 and 1/8 sizes, so the presence of the 2 in the pic is a bit of a mystery. The 1/8 size looks interesting, .405" isn't far off 10mm and 27tpi is almost 1mm pitch. |
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| fishhead |
| Posted: Sat Jun 14, 2008 11:49 am |
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Rookie
Joined: 10 Jun 2008
Posts: 1
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I have an identical Hurst-Airheart on my Dunstall. It is an older unit and actually has 10X1.00 threads for the brake line. It is a nice unit and works great. Their smaller size lends them self to many applications. The caliper has since been upgraded to a newer underslug unit off a Ninja or GSXR and the wheel has been changed to a spoked wheel.
Like they say on the Airheart page, dont mix and match brake fluid with mineral oil. It destroys the seals in the calipers and master cylinders and makes them useless.
Fish
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