NaturalSmooth

iTrader: (6)

I am currently having low oil pressure issues (confirmed with mechanical gauge) and I am in need of some help. Here's a little pre-history. Previously I had slightly overheated my engine, which down the road caused my front iron to crack along the coolant seal. I went ahead and took it apart, ordered a replacement front iron and put it all back together. The engine runs fantastic, aside from the low oil pressure.

This will now be the third time I have taken the front cover off since the rebuild. First time I thought the Gasket was the issue, so I removed it and used silicone, the teflon seal & o-ring seemed fine at the time. After starting it up it seemed like the oil pressure was fine for a few seconds and then it dropped back down to 0 on the gauge. I took it apart after that and found that the teflon seal was smashed flat and the o-ring was sucked into the spring. I went ahead and ordered 2 new sets of teflon seals and o-rings from mazda trix. I put the new set in and put it all back together, oil pressure was fine for a few seconds and then dropped to 0 again. After pulling it apart for the third time, I've found that the teflon seal was smashed flat again.

Now for the PICS - each picture is a link to a larger version of the pic as well.

Front cover removed, the teflong seal & o-ring have been removed for this picture


A closer look, according to Mazdatrix's FAQ this would be the later casting


Shot of the front cover


The 2 previously smashed teflon seals are on the left, the new teflon seal with o-ring is on the right.


Comparing the thickness of the 2, bad on top, good on bottom.


Showing the smashed teflon seal in place, no room for the o-ring


Showing the new teflon seal in place, there is room for the o-ring


Shot of the oil pressure control valve in the FSM, I don't think I have this piece?!


Any help would be appreciated!!! Thanks!!

NaturalSmooth

iTrader: (6)

I realized now that I wasn't very clear on my question.

1. Anyone have this problem with the O-ring & Teflon Seal?

2. Am I missing a piece with my oil control valve?

HAILERS

Yeah. Unless it's stuck in the bore where it goes. You NEED that item.

If you lay your front cover gasket over that teflow/o'ring, what does it look like?

NaturalSmooth

iTrader: (6)

Originally it looked fine, just like in Mazdatrix's FAQ. I have since removed it and have just used the orange rtv stuff, funny part was that when I had the gasket in there and I had taken apart the front cover, the o-ring and teflon seal were fine. I had just figured that the gasket was too thick, causing the front cover to not make a good enough seal, so I removed it.

beefhole

iTrader: (29)

Could there be a problem with the oil pressure regulator? Did a piece of the teflon seal get sucked into the hole?

NaturalSmooth

iTrader: (6)

I wouldn't think so, each of the teflon seals have come out intact, only 2 have been flattened. I would think that also if something got plugged up, it would increase the pressure. I have replaced the oil pressure regulator in the rear iron after this problem came up as well.

HAILERS

If you don't have that *piston* looking outfit in the regulator, then you'll get low oil pressure. Be sure to look up in the bore for that *piston*/plunger looking outfit.

If memory serves, when the oil is cold and the pressure reaches over????? 156 psi??? the piston/plunger is forced downwards and the excess pressure is **** out the relief hole. To prevent over pressurization of the system. It's in the LUBRICATION section somewhere.

NaturalSmooth

iTrader: (6)

Looks like it's called a "Control Plunger" I couldn't find anything that looked like that in my garage, i'll have to check elsewhere. What I'll probably do is put a front cover gasket in place (since I didn't have the teflon seal smashing problem with one) and put in the plunger when I find one.

HAILERS

Did you ever get a flashlight and look in the bore of the front cover to see if it's there? It's a tight fitting part and it's possible the oil on it is holding in in the bore.