Datsun Roadster Forum-311s.org

notoptoy wrote:Is that gear oil, or Brake fluid?

It's thick like gear oil, I'm sure if it was brake fluid there would be a lot less paint. Hard to tell where the leak is coming from, possibly an axle seal? but the car is parked for now as I noticed the nuts on the end of the shock were hand tight. I cleaned it up to try and find where it is leaking and will pull the wheel soon to get a better look, but it is not coming from the drums and the wheel is dry. My inline fuel pump is above the diff in that area but it is not leaking, nor does it smell like gas. Maybe the shock blew something as that is also wet.

Here's another pic.

If you filled the rear axle right up to the drain plug, especially if the rear was jacked up, it's probably gear oil.

I can't remember what side the vent on top is on but clean it out (maybe that's where the leak is from), and don't overfill the axle.

I am 95% sure this is a blown shock now. Took the wheel off, nothing is obviously leaking at a fitting or a line and it's definitely not brake fluid, gas, or oil coming from the axle. The lower mount to the shock was hand tight so I took the nuts off and was able to compress the shock easily with my thumb, so I would assume it is toast.

These are KYB-GR2 shocks, for your viewing pleasure. You can see where there was a brake fluid leak from when the previous owner had the car, I'll clean that up while I'm under there. I told you the roads here are terrible!

Have a spare set if of GR2's you need them

I may take you up on that offer later when I have some money to spend.

In the meantime, had some fun before it's too cold, and Halloween.

Freakie man, reeeeaaaaaalllll freakie...

what is this? could be a small hole. Maybe the park cable was on top awhile?

Nope, no holes, the shock is definitely kaput. I unfortunately have to put my resources towards my boat pulling Jeep, that thing blew a brake hard line and made a huge mess in the driveway.

That's the vent hole I believe.

Linda

Do you have a rear anti-sway bar on that?

Ok, so your shocks are leaking, but why the long face? You can have the shocks anytime, figure out $ later, they are used, so REAL cheap, sandwich and a beer or 2 at Iron Hill next time I drive south will cover it.

notoptoy wrote:Do you have a rear anti-sway bar on that?

Looks like it. From reading some opinions here, that could contribute to odd/evil/scary handling. easy enough to disconnect tiewrap out of the way and roadtest

Linda wrote:That's the vent hole I believe.

Linda

Im not familiar with the 66, but Ive never seen a vent hole in an axle tube. Seems like the rotating axle would sling the lube right out of the hole. Usually they are higher up on the center housing away from the fluid, opposite the ring gear. jus my nickels worth

Originally the vent tubes were on the axle tube. They were moved due to excess oil loss during racing iirc.

it's definitely the vent hole, on my 66 its on the same place only with a small tube for ventilation on it.
But on the 67,5 was also a compensating ax to the rear I belief.