964 C4 4wd longitudinal & lateral actuation cylinder seal kits
11-10-2014, 12:11 PM
#61
Three Wheelin'
bumping to ask a question abt how the dif locks actually work -
the spring is in the back of the diff lock - so does the hydraulic fluid suck the pin back into the lock? and then press it into the differential when it needs to lock the diff? or is it the other way around? what is actually going on in the trans-axle? a curiosity really...
the spring is in the back of the diff lock - so does the hydraulic fluid suck the pin back into the lock? and then press it into the differential when it needs to lock the diff? or is it the other way around? what is actually going on in the trans-axle? a curiosity really...
Inside the transaxle they push on levers which compress clutch packs and lock up either differential in proportion to the pressure applied.
11-10-2014, 12:29 PM
#62
Race Car
thats what I had thought - but the spring is behind the rod - already pushing it out - so is there something in the diff that is pushing back on the rod - that is then overwhelmed by the hydrualic pressure when the diff lock engages?
11-10-2014, 02:32 PM
#63
Three Wheelin'
The spring inside the slave is probably just to take up any slack, although they do run with a bit of preload hydraulic pressure (2-3bar iirc) on the clutch packs which will exceed that spring's force.
06-08-2015, 01:02 AM
#65
06-10-2015, 06:26 PM
#66
Burning Brakes
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http://9mshop.co.uk/9M-Porsche-964-Diff-Seal-Kit
06-10-2015, 08:18 PM
#67
Burning Brakes
I tried to order them off his websites, but could not get it set up to ship to the US.
Ignore the above.
Just looked at it again and it looks like it can be ordered on website. Might get a set as backup.
Ignore the above.
Just looked at it again and it looks like it can be ordered on website. Might get a set as backup.
06-11-2015, 10:00 AM
#69
Burning Brakes
I have just replaced mine while engine was out. Went ahead and ordered a backup set just in case and for the future. These type parts are what worry me a little about availability long term. I have no plans to ever sell my car so I like to have backups on parts that may become NLA.
03-01-2016, 03:18 PM
#72
Racer
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I had bought 2 kits a while back. I thought I had ordered 1 kit for each lock. During a recent clutch work we noticed the longitudinal lock was leaking. Thought it was time to rebuild both locks, but the kits looked identical. We rebuilt the long. lock and didn't crack the lateral lack.
Do both locks use the same rebuild kit?
Thanks,
Dan
Do both locks use the same rebuild kit?
Thanks,
Dan
03-01-2016, 09:16 PM
#73
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I had bought 2 kits a while back. I thought I had ordered 1 kit for each lock. During a recent clutch work we noticed the longitudinal lock was leaking. Thought it was time to rebuild both locks, but the kits looked identical. We rebuilt the long. lock and didn't crack the lateral lack.
Do both locks use the same rebuild kit?
Thanks,
Dan
Do both locks use the same rebuild kit?
Thanks,
Dan
03-01-2016, 09:20 PM
#74
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