[Spridgets] Datsun 5 Speed Clutch

Rick Fisk refisk at chartermi.net
Wed Dec 8 20:36:44 MST 2021


I should have said how much play between the pushrod and pistons?

> On Dec 8, 2021, at 8:27 PM, Michael MacLean <springer.mike51 at gmail.com> wrote:
> 
> 
> Adjusted.  Close, but not contacting the bolt stop.
> Mike M
> 
>> On Wed, Dec 8, 2021, 4:37 PM Rick Fisk <refisk at chartermi.net> wrote:
>> Mike,
>> 
>> How much play do you have between the pedal and pushrods?
>> 
>> Sent from my iPhone
>> 
>>>> On Dec 8, 2021, at 7:27 PM, Michael MacLean via Spridgets <spridgets at autox.team.net> wrote:
>>>> 
>>> 
>>> 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 at 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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