Replacing hydraulic slave cylinder

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Replacing hydraulic slave cylinder

Postby Eric Johnson » Sat Sep 28, 2019 4:55 am

Looks like my old Neal slave cylinder is shot. I see they are no longer in business. Also CNC is gone too looks like. What is a good replacement? I have a type 1. Master is 5/8 I believe


Thanks!

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Re: Replacing hydraulic slave cylinder

Postby Larry Jowdy » Sat Sep 28, 2019 5:45 am

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Re: Replacing hydraulic slave cylinder

Postby DannyP » Sat Sep 28, 2019 5:55 pm

I bought a Wilwood to have as a spare but haven't replaced it yet. I think it's this one:

https://www.summitracing.com/parts/wil- ... gL2cfD_BwE

I took the Neal apart and cleaned it out of all the black goo. I re-assembled and re-used the same O-rings and it's still working.
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Re: Replacing hydraulic slave cylinder

Postby Eric Johnson » Fri Oct 04, 2019 3:43 am

Thanks, you guys!
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Re: Replacing hydraulic slave cylinder

Postby RS-60 mark » Fri Oct 04, 2019 9:26 am

DannyP wrote:I took the Neal apart and cleaned it out of all the black goo. I re-assembled and re-used the same O-rings and it's still working.


Yes, it is a good idea to purge (bleed) the clutch MC/Slave annually, especially if you have a Girling style or other aluminum bore MC. The "black goo" will accumulate and clog up the system; the clutch operation will become iffy and intermittent.

Eric, follow Danny's lead and disassemble your existing slave, clean it, and put it back together. Pedal-pump 1/2 quart through the MC and out the slave. You should be good to go when the exiting fluid is absolutely clear. In my case, I have a Girling style MC and I can see the bottom of the MC reservoir when the cap is unscrewed and removed. Half-way through the purging process I swab the bottom of a full reservoir with a q-tip to stir any remaining sediment into the fluid so it can be purged out.

Do Not get brake fluid on any painted surface!!
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