1995 Altima: what is the cause of oil leak around the distribut...

SOURCE: ON 2002 ALTIMA 2.5 I FOUND OIL

I would try snugging down all the valve cover bolts before replacing anything. A valve cover gasket kit should have the grommets and gaskets necessary to repair this if you find no loose bolts.

SOURCE: How can I disasemble a 1994 Altima distributor?

You do not need to disasemble the entire distributor. Unplug the black electrical connector from the distributor. (with a white marker or correction ink)Mark the screws and dist to maintain the same settings. remove the two main screws, one in the front and one in the rear of the distributor assembly(not on the cap). The Distributor should slide out. These O-ring seals are not sold at the dealers or parts store. They want you to pay over $150+ to replace the entire dist. I brought in the old seal and I was able to match a seal at autozone. It worked. Hopefully this helpd

Testimonial: "OK, following those E-Z steps I can replace the external seal, but how can I remove the shaft to change the internal bearing/seal to prevent oil from "

SOURCE: I have 1994 bluebird nissan

That sounds like the rear main seal.
Its easy to replace seal once you get to it. Eather by pulling the motor or transmission to get to it. Yes its a $20 part too.

Heres a price list that auto shops use to see what its going to cost you for them to do it . It also gives you the hours it will take you if you know what you are doing.

Parts Information Part OEM Part Price Crankshaft Main Bearing Seal 25 - Rear Main Oil Seal 122792B500 $24.95 Labor Skill
Level Mfg.
Warranty Standard Crankshaft Main Bearing Seal Replace Manual Trans B 4.8 6.6 Includes: R&R Transaxle. Auto Trans B 5.7 8.0 Includes: R&R Transaxle.