I'm looking for grease able ball joints. It doesn't appear that Moog sells them. Any other options for high quality joint?


A side question where are the OMP components located on a 12A? Most of the rubber is starting to get brittle and I'm starting to get worried about the OMP. How can I tell if the pump is working right without the engine exploding?

 

s4 or s5? PMme I can get you some

 

get oem ball joints.

and premix.

 

premixing is lame and a pain in the ***. if the OMP works, keep it. if not, fix it and modify it to run out of a separate reservoir. its worth it.

 

I premix and I don't mind it, in fact I prefer it that way.

 

Premix doesn't lubricate the engine in the same way that oil metering does.

 

You're right. It does a far superior job.

 

do you have any proof of this or are you just assuming this and stating it as fact? i'm pretty sure mazda spend a couple bucks engineering the oiling system. it works fine.

 

Mazda also realized their sales would massively drop if they made their owners dump premix into the tanks everytime they filled up, and warranty issues would be through the roof if an owner forgot and destroyed their engine, not to mention issues with emissions. The MOP system is no more than Mazda's best attempt to work with what they had to, but by no menas is it considered optimal. If you believe this, you're kidding yourself.

Anyone having opened up multiple engines, built, raced, and used premixed can tell you the difference in seal and rotor housing wear is significantly less with premix.

Its funny you put so much faith in Mazda's MOP system. Even the RX-8 had a metering oil system revamp mid-production due to the system being inadequate, and the initial system was far superior to the design used on any RX-7.

If you want, take your full faith in Mazda's engineering and keep your car as is. How's that sub-zero start system working for you?

 

Furthermore, two of Mazda's most significant external engine building resources, downing/atlanta and racing beat, both relied on premix for the engines that they supplied for Mazda's racing efforts.

 

Racing engines are torn down after each race. Different environment. And premix can't fail. An OMP system can fail. During a race that would be not ideal.

 

More likely, premixing provides better internal lubrication for a highly stressed engine. If the MOP provided superior lubrication to premixing, it would be run in conjunction with premixing, relying on premixing as the failsafe for a MOP pump failure.

 

Not to mention a reduction in carbon caked on the engine internals.

 

From the high mileage 13b motors I've torn down, when the oil metering system is working correctly the housings tend to be in great shape.

My main beef with premix is that it doesn't lubricate the engine the same way the oil metering system does. You can see it when you tear down a motor - at and below where the oil injection hole is the housing doesn't seem to wear at all. Even the almost 200k motor that I just tore down. Apex seals were even in spec still.

You would never want to premix and run oil metering - too much top oil will eventually lead to a stuck seal from carbon.