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We have decided that without pulling the engine and looking what's going on
in the bell housing, we're done with the clutch for now. Another problem
now is with the brake pedal. The whole purpose of this was to switch to
disc brakes from the original drums. I swapped the old master with a 7/8"
bore to a new AP Lockheed master with dual 3/4" bores as per disc brake
1098/1275 Spridgets up to 1967. I used the old 7/8" brake pushrod that was
4 - 1/8" long and cut it down to 3- 11/16" in length. The clutch pushrod
was already cut down for the 3/4" sleeve in the original master to
accommodate the Datsun clutch. After bleeding the brakes and clutch, the
clutch is just as it was with the old master cylinder, but the brake pedal
goes half way to the floor before becoming solid. Brakes work OK, but the
excessive travel in the pedal is a mystery. If there was air in the
system, you could pump it up to have the pedal at the top, but pumping the
brake pedal makes no difference. No air in the system, so what could it be?
Mike M
On Wed, Dec 8, 2021, 10:16 AM Jeff Kelly <jeffsbugeye@gmail.com> wrote:
> Michael et all,
>
> I have a Rivergate kit. When I installed I used the modified Datsun
> clutch disk , spridget 1275 flywheel and the billet slave cylinder they
> supplied. I think it is a 7/8" slave. My master is a3/4" bore. Went to
> 3/4" when I converted to front disc brakes. The clutch system did not
> work out too well. I burned up 2 disks before I sent my flywheel to
> Gerard and had it drilled for the Datsun clutch plate and disk. Works
> better, but still needs some adjusting. To completely disengage, my
> pedal is all the way to the floor. I wonder if a 7/8" master would work
> better. Long range I plan to install seperate brake and clutch masters
> and us a 7/8" for the clutch.
>
> Jeff Kelly
>
>
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<div dir=3D"auto">We have decided that without pulling the engine and looki=
ng what's going on in the bell housing, we're done with the clutch =
for now.=C2=A0 Another problem now is with the brake pedal.=C2=A0 The whole=
purpose of this was to switch to disc brakes from the original drums.=C2=
=A0 I swapped the old master with a 7/8" bore to a new AP Lockheed mas=
ter with dual 3/4" bores as per disc brake 1098/1275 Spridgets up to 1=
967.=C2=A0 I used the old 7/8" brake pushrod that was 4 - 1/8" lo=
ng and cut it down to 3- 11/16" in length.=C2=A0 The clutch pushrod wa=
s already cut down for the 3/4" sleeve in the original master to accom=
modate the Datsun clutch.=C2=A0 After bleeding the brakes and clutch, the c=
lutch is just as it was with the old master cylinder, but the brake pedal g=
oes half way to the floor before becoming solid.=C2=A0 Brakes work OK, but =
the excessive travel in the pedal is a mystery.=C2=A0 If there was air in t=
he system, you could pump it up to have the pedal at the top, but pumping t=
he brake pedal makes no difference.=C2=A0 No air in the system, so what cou=
ld it be?<div dir=3D"auto">Mike M</div></div><br><div class=3D"gmail_quote"=
><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Dec 8, 2021, 10:16 AM Jeff K=
elly <<a href=3D"mailto:jeffsbugeye@gmail.com";>jeffsbugeye@gmail.com</a>=
> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 =
0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Michael et all,<br>
<br>
I have a Rivergate kit.=C2=A0 When I installed I used the modified Datsun <=
br>
clutch disk , spridget 1275 flywheel and the billet slave cylinder they <br=
>
supplied.=C2=A0 I think it is a 7/8" slave. My master is a3/4" bo=
re. Went to <br>
3/4" when I converted to front disc brakes. The clutch system did not =
<br>
work out too well.=C2=A0 I burned up 2 disks before I sent my flywheel to <=
br>
Gerard and had it drilled for the Datsun clutch plate and disk.=C2=A0 Works=
<br>
better, but still needs some adjusting.=C2=A0 To completely disengage, my <=
br>
pedal is all the way to the floor.=C2=A0 I wonder if a 7/8" master wou=
ld work <br>
better.=C2=A0 Long range I plan to install seperate brake and clutch master=
s <br>
and us a 7/8" for the clutch.<br>
<br>
Jeff Kelly<br>
<br>
</blockquote></div>
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