Needed ASAP - clutch line
04-18-2008 | 06:01 AM
#17
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From: Sydney AUS
Am I correct in thinking that the brake lines (hard) and clutch lines (hard) on the 928 are the only thing that is Imperial on the car.
My 88 has 1/4" copper clutch line and 3/16" copper brake lines - all with M10x1.0 fittings. I know this 'cos I've made and replaced brakelines myself and had a new clutch hard line made and fitted at a German Merc specialist near Adenauer on the way to the 'Ring and the pipe he used came out of a packet with 1/4" written on it. And Germany has been metric almost since before the French invented metric.
My 88 has 1/4" copper clutch line and 3/16" copper brake lines - all with M10x1.0 fittings. I know this 'cos I've made and replaced brakelines myself and had a new clutch hard line made and fitted at a German Merc specialist near Adenauer on the way to the 'Ring and the pipe he used came out of a packet with 1/4" written on it. And Germany has been metric almost since before the French invented metric.
04-18-2008 | 09:46 PM
#18
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Joined: Aug 2006
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From: Glendale, CA
Jon,
The brake lines on my car are 4.75mm, which is generally considered to be the same thing as 3/16". The new line that you see in my photo is 6mm 90/10 copper-nickel. I don't have the original clutch line, but I would be surprised if it was not 6mm also. 1/4" tubing is only slightly larger than 6mm. I made several "prototypes" using 1/4" steel tubing. As you also found, the metric flare nuts fit just fine on the 1/4" tubing. The joints seem to go together and the flare diameters seem to match OK, so I would agree that 1/4" tubing appears to be perfectly useable for the clutch line.
The brake lines on my car are 4.75mm, which is generally considered to be the same thing as 3/16". The new line that you see in my photo is 6mm 90/10 copper-nickel. I don't have the original clutch line, but I would be surprised if it was not 6mm also. 1/4" tubing is only slightly larger than 6mm. I made several "prototypes" using 1/4" steel tubing. As you also found, the metric flare nuts fit just fine on the 1/4" tubing. The joints seem to go together and the flare diameters seem to match OK, so I would agree that 1/4" tubing appears to be perfectly useable for the clutch line.
04-18-2008 | 09:54 PM
#19
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From: Da Island, mon! (VI,BC,CA)
Ditto on what Jon A. said...though I had to drill out my fittings for the tube to fit (maybe I used 5/16" rather than 1/4")
Jon, aren't you concerned about pipe stress when connecting without a flex link?
Durned purtee work ya did tho'.
Regards, Ken
PS FWIW my clutch hard line was 6mm
Jon, aren't you concerned about pipe stress when connecting without a flex link?
Durned purtee work ya did tho'.
Regards, Ken
PS FWIW my clutch hard line was 6mm
04-19-2008 | 04:37 PM
#20
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From: Glendale, CA
Ken,
My new tubing connects to the stock clutch hose. In the picture, the rubber portion of the hose is covered with a thermal insulating sleeve. The idea of the insulating sleeve is to (hopefully) block some of the radiant heat from the nearby exhaust manifold.
My new tubing connects to the stock clutch hose. In the picture, the rubber portion of the hose is covered with a thermal insulating sleeve. The idea of the insulating sleeve is to (hopefully) block some of the radiant heat from the nearby exhaust manifold.
04-19-2008 | 09:30 PM
#21
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From: Da Island, mon! (VI,BC,CA)
"Ah, I see" said the blind man
Still nice work there Jon.
In my case, I tucked the pipe up above the starter, so I hope that heat won't really be an issue.
FWIW, after an extended period of pissing around, and still not having nice clutch pedal, I tried the bleed method kindly provided here
by Landseer. It works most excellent!
Ken
In my case, I tucked the pipe up above the starter, so I hope that heat won't really be an issue.
FWIW, after an extended period of pissing around, and still not having nice clutch pedal, I tried the bleed method kindly provided here
by Landseer. It works most excellent!
Ken
