2 dorito's on a stick baby!

 

The s4 n/a in my basement..

 

yep we got lotsa engines

 

Its called assembly lube (or ***. lube for short). Federol Mogul is one brand that pops to mind.
Any automotive parts store will carry it.

 

I agree!

Engine on bucket + sandals on feet = Bloody stumps!



That being said, I always love seeing people building their engines - it makes me happy that more and more people will invest their time into doing it themselves. They learn a lot, and their experiences can always help someone else. Good luck with the rest of the project!

 

this winter is going to be fun I get to do a 13BRE swap and rebuild/port my n/a motor.

 

Yea we must get an engine stand adapter...

 

Did you grind out the diffuser?

 

I have another adapter laying around if you are interested. PM me, I just need to get it out of the way.

 

Yeah, I did mine using stacks of the yellow pages.... so ghetto. Getting a stand is a must the next time round.

 

the bucket is pretty heavy duty. kept the engine standing all night. Yes the diffusers are out.

 

What did you use to grind/cut them out? They seem to be way too solid to me.
I've always used a fold out Craftsman 'workmate.' Never had a problem with it, but I'm sure an engine stand would make things easier.

 

We used a dremel, with a carbide cutting bit. It took a long time. Seems ghetto to me, I mean the sleeve's casting is still left rigged and not smooth where the diffuser was. But then again its not as much a restriction as the exhaust diffusers...

 

Yay I started rebuilding mine too today! I can't wait!

 

Damn its fun! Take your time. Do you have the video? Its a must!

 

I still regret back in the day when I rebuilt my first engine (current engine), I had to buy new rotor housings and I bought NAs because I didn't know if TII housings would work.
Of course, I didn't know about the forum back then.

 

What are these diffusers you speak of?

 

I have done a few rebuilds now and have never used
gasket makers or silicone on the coolant o rings
and have never had a leak.
that said, I have pulled apart motors that have been
rebuilt, where the rebuilder used silicone all over the
place, what i noticed was it seems these motors had
corrosion on the aluminum parts much worse
than motors with no silicone, in fact one was so
bad most parts were not usable.
I have always noticed that silicone seemed to
promote corrosion in most applications.
could just be me but i wouldn't use silicone other
than on the lower leg of the rotor housings to seal
the oil in the pan area.
another thing i noticed was bits of silicone in the coolant
passages blocking some of the smaller ports, i assume these
bits came from the excess that gets squished into the passages
when the motor gets bolted together. another reason
to follow mazda's instructions when rebuilding.
my 2 cents
matt

 

? So what did you use to seat the water O-rings?
We used hylomar, im not sure if that is silcone or silcone based........

 

Hylomar is what MAZDA reccomends!!!!

 

everyone i know uses assembly grease to hold the coolant o rings in the grooves.
As far as what mazda uses, pictures i have seen
show them using grease to. even on the renesis video you
can see that they are using grease.

matt

 

http://www.mazdatrix.com/faq/6pexh.htm

 

 

What exactly do the diffusers do? Is it best to get rid of them?

 

Muffle the noise mainly.

It's said to give a performance gain of some sort (low end torque?), but as soon as you modify the exhaust, it's said 'performance' function won't be functional or as functional as intended. Infact when modding the engine (substantially), better off to just ditch it if you can.