OIL COMING OUT OF BREATHER ON THE MAZDA T3500 TRUCK

There are a couple of things to consider...

First the cabin air intake is generally in a tray that once the engine compartment hood or bonnet is closed should be almost completely isolated from the engine compartment due to the rubber sealing strip and other rubber components. Perhaps some of these are missing or in poor condition. If heater intake water drains are fitted they should be self closing...

In good condition normal smells or fumes should not get past those seals.

The other consideration is where are the fumes coming from? Unless the engine has an exhaust or oil leak or a breather problem the amount of fumes generated to leak into the cabin, even if the sealing isn't in good order, should be minimal.

http://www.scribd.com/doc/91809983/Mazda-T3000-T3500-T4000-workshop-Repair-Manual#scribd

Follow the link https://www.conti.nl/wp-content/uploads/2012/01/airpressuretable_pdf_en.pdf

I found out with my old 94 Ranger 2.3L that the oil breather does not have a filter element, which causes oil to "naturally" (as Ford puts it) accumulate in the throttle body and air intake hose. You can get an inline breather element at any parts store for a few bucks and install it on the breather line without harming anything, and this will stop. Cheers.

The Mazda T3500 truck requires a specific torque for its bolts. According to [1], it requires a torque of 60 pounds for the first stage, 70 pounds for the second stage, and 80 FT Pounds for the final stage. Additionally, in [2], it is recommended to refer to the STANDARD BOLT AND NUT TIGHTENING TORQUE in Section TD for tightening torques which are not mentioned in the main text. Furthermore, [3] suggests that one should check the oscillation torque of the connecting rod. If the large end does not drop by its own weight, it is important to replace the piston, connecting rod, and/or piston pin.

**References:**

[1] [Torque specs for Mazda T3500 truck - Fixya](https://www.fixya.com/cars/t18472768-torque_specs_mazda_t3500_truck)

[2] [Mazda T3000, T3500, T4000 Workshop Manual](http://www.retroanaconda.com/landrover/manuals/mazda_t3000_t3500_t4000_wsm.pdf)

[3] [Mazda T3000 T3500 T4000 Workshop Repair Manual PDF](https://ru.scribd.com/document/361910842/mazda-t3000-t3500-t4000-workshop-repair-manual-pdf)

When a vehicl is in storage for a long time and hasn't been started ,the oil drains off the gears and any part above the oil line will rust and jam up. Try removing the lock unit as the dedent ball in the unit may be rusted in the out position and not moving out of the way to allow gear selection.Don't be surprised if the gear box and diff make some noise when you drive it.

HI KEVIN.oil from breather is no a good sign.sound like back pressure.but if there is no smoke any where give an engine flush and clean all return hoses and mesh filters.good luck.ali

It sounds like the engine is badly worn. Compression is likely blowing down past worn piston rings creating excessive pressure in the crankcase which then blows out the breather tube. Solution is a used or remanufactured engine.

Does the engine breather pipe have a pcv valve on it?
How much oil do you have to add? in a week? In a month?

Dont be lazy no easy soloution ,head off and have a look