Fisher

Since Mazda Canada and my local dealer can't seem to solve this ill ask the ppl who might know.

History ..

in July my engine blew and something in the core went and pushed oil back into the air intake ... Mazda replace the Core / block ... fixed this issue ..

2nd engine ... something was making the engine create so much internal pressure i was sucking in the main front seal into the engine.

Mazda replaced the core again..

Which brings me to now November that right July to November ..

3rd core / engine when revving to 3k a noise can be heard from what my dealer has said if u remove the oil cap the noise goes away. So the thought is that it something in the vacuum system making to much pressure.

Any ideas ?? Mazda Canada is completely useless.. my dealer isnt to bad from what i have seen but everything has to go through mazda canada ..

Oh to top it off to see how bad mazda canada is. on my s2 in the shop diagrams didnt even list all the oil injector system. my dealer had to take pictures and send them to mazda Canada . because they didn't know it existed !!!!

anyway sorry about the rant Does anyone have any ideas.. would like to take my car home before they salt the roads

liesls8

iTrader: (1)

Well, since motor has been replaced a couples times, could have a cracked or broken vacume line?

Carbon8

iTrader: (4)

Vacuum leak can be from a variety of things, get the system fog tested to ensure its not a vacuum problem.

ASH8

I am aware of your past unresolved issues, however, the EMOP (Injector) system does not work on vacuum at all, oil is supplied to the 2 electronic pumps by the engines main mechanical chain driven engine oil pump, Via a OCV and a simple return line after EMOP's to the Oil Filler neck and gravity then with unused oil back into the Oil Pan, there are no restrictive Valves in this return system apart from OCV at the start or front of Oil delivery for the 6 Oil Injectors.

Maximum Oil Pressure is around 4-21 PSI in this EMOP Oil Injector System.

I am still trying to get my head around as to why there has been 2 or 3 cores renewed and you are still having 'problems'.

The Vacuum system is not that complicated and is basically all intake related (like most cars) and for operation of the Diaphragms on the SSV and VDI.

For Engines to be "sucking" in main front seal?, are we talking Timing Cover Seal?, I guess so, then there is something seriously wrong with the Mazda Re-man...and the guy who assembled them, maybe?

But again I am still trying to get my head around exactly what 'could' have been done, if it was this severe one would thing the engine would run like a pig.

IF the short engine was a reman, and AFAIK now all of them for S2 are (no more all new Mazda Japan assembled short engines supplied), then they should know that all housings and irons are S2 (R3) specific because of injectors and all new oil pump, OCV etc.

I recall seeing a bulletin going to Dealers and the Staff at reman plant specifically telling them to double check Part Number model codes stamped on irons and other parts before they install-assemble as you can not mix them up with S1 RENNY ones (they will fit by not correct parts).

The actual internals (what runs on Eccentric Shaft) are all the same for all series RX-8 6 port, apart from using the latest and updated iterations (newest parts).

I like Carbon8's idea of a fog check to see where and if there is any leak of air intake or a hole, bolt, stud, nut, o ring missing????

Sorry I cant help more, perhaps it may help us if you can produce a Video of the engine bay and the engine running with noises, take shots as close as possible to the LIM, UIM, all lines, etc etc and post on You-tube and here?

ASH8

BTW: You are certain that the Mazda Dealer did actually change these engine cores over in the period of time?, you can prove they were renewed??

I am not suggesting your Mazda Dealer is untrustworthy.....but...?

I can tell you so many stories of the fibs they can say because they can not find a problem or cant be bothered to try and fix, so the car sits in workshop for weeks gathering dust hoping it will mend itself, if you know what I mean....or they will blame someone else (like Mazda Canada)..

An easy out for them....

Fisher

Thanks for the reply Ash
I made them show me the replacement engines / cores each time.

From what I got out of them today was that Mazda Canada has told them to pull off the CAT and inspect that to see if it is plugged do to the first issue shooting 2-3 l of oil out the back end. so I guess to much back pressure.

the only thing left to change / replace is the upper and lower intake housings with the ssv and vdi so ill find out Monday if its the CAT.

ASH8

''Shaking head..''.

None of this makes any sense, using large quantities of engine oil has nothing to do with the CAT.

If it (CAT) was 'plugged' I guess you mean blocked/restricted?, then you would have next to zero performance, CEL's and many other issues.

It would be good if you could supply any Part Numbers, any hard info rather than hearsay, IF they gave you any paperwork?

Ricky SE3P

iTrader: (10)

here lets do something that will help a lot, can you get a video with audio of the noise for everyone to hear, and to see if you yourself can narrow down where the noise is coming from?

Fisher

lets try to clear a few things up

1.original engine failed do to something with the block and oil injection. mazda replaced core/engine. oil issue solved. root problem unknown

2. replacement engine 1 issue sucking gasket into engine. they replaced the gasket once and it did the same thing. so they replaced the core / engine again.

3. replacement engine 2 issues gasket seems to be holding. noise at 3k rpm and cel.
Mazda replaced belt tensioner, and ether the oil pump or oil pump gasket for the cel.

as it stands right now I do not know it the cel is gone. they say their is still a noise coming from the engine at goes away once the oil cap is removed.

mazda Canada to my local dealer to inspec the cat to see if it is plug up.

I just called mazda for a update will update this once I know.

Fisher

I will also try to get a video of the issue to upload.

ASH8

I would just like to point out a couple of things..

IF you really want help you need to be way more specific or know what you are saying...

First you said engine was 'sucking in main front seal', now you are saying 'gasket'.

There is a huge difference between a 'seal' and a 'gasket' and where they go.

I do not know who is feeding you this information but there is not any Oil Pump gasket in any RE Oil Pump and certainly not on the S2 Renny, even though it's alloy Oil Pump is all new and never used before until S2 (R3).

As I said before, if you can not upload either part numbers (what was renewed) or a job sheet or a video of concerns we really are chasing our tails.

Sorry..