If your POSITIVE you need new bearings, IMO there isn't anything particularly "special" about pressing in the bearings. A good machine shop should be able to do it. Before taking it to an experienced friend with a well equipped press I used a permanent marker to make parallel lines on the outside of the bearing and on either side of the bearing tab. That makes it easy to line up so you don't get a high spot.

 

Ya the bearings are out of spec unfortunately. the reason I ask if its it must go to a rotary shop is cause mazda has a sst listed on the workshop manual.

Thanks for the tip with the sharpie, I didnt realize the tab on the bearing had to line up with anything.

 

can somebody tell me why there is $100 price difference between these two gasket sets?

http://www.racingbeat.com/RX7-1993-1...FE-10-271.html
http://atkinsrotary.com/store/produc...cat=739&page=1

 

any machine shop can press bearings in or out
no idea why the price difference, could be the quality of materials used, it appears the racingbeat one has fewer gaskets too, you can see the gaskets for the oil and coolant feed and return line are missing, The LIM to block gasket looks strange too. It also uses different exhaust manifold gaskets (only 1 in fact which isn't how the stock gaskets are set up)

 

Ok thank you, there was just some confusion because I see rotary sites selling "special press tools"

As far as the seals go, I do see a difference in the amount of seals used but could they just be generic pictures? looking at the gasket kits for the other generations, they use the same picture for all of them... also they are both mazda seals, both with mazda part numbers I believe...

 

You could contact them and see if they'd give you an itemized list of everything, but at a glance the Atkins kit appears more complete. I see some exhaust gaskets that I don't see in the RB picture. Those can be pricey.
I'm not sure, but based only on the color of the gasket depicted by Atkins, the front cover gasket might be the metal one...which I think most would recommended over the standard orange version.
Although both kits show an oil pan gasket, IMO you can throw that one away.

 

Actually after my last post I sent them both emails, so maybe tomorrow I will hear, Also in the middle of trying to get a good used iron, and as soon as midterms are through (Thursday) I'll be producing more pictures

 

ok so no word from Atkins yet, but Racing Beat has been very helpful! Both Gasket kits have the same Part number, and RB told me that they buy straight from Mazda as opposed to a dealership, so they can pass on the savings to the rotor heads. I asked for an itemized list and they sent me this picture, looks complete, what do you guys think?

 

It's been a while but I can't see anything obviously missing. Maybe the copper washers for the OMP lines to injectors and to the pump. There are also the copper washers for the banjo fitting at the oil filter...I don't see those listed. You might also ask RB about a metal front cover gasket.

 

can those copper washer not be reused? Im definitely interested in the front cover metal gasket. Thank you for looking at the diagram

 

You can try re-using. But the likelyhood of leaks increase. And for things as deep and difficult to access as those OMP lines are on an assembled long-block, I wouldn't chance it over a couple of bucks worth of washers.

 

For the front cover you can just make a 1" stand pipe out of brake line for the OMP hole with an o-ring for the oil crossover and then just use silicone to seal the cover, the same way you'd do for the oil pan. Would just save you some money and if done right, will never leak. That's assuming the Gasket kit comes with the paper one, if it comes with the metal one, just use that.

thewird

 

Are these copper washers special to mazda or can they be had at a hardware store?

Thanks for the tips, I'll have to see once the gasket kit is ordered, going to start cleaning the rotors today.

 

Have u decided what your going to do for the rebuild kit? Just wondering if you know the gasket kit isn't part of the rebuild. Usually most of the gaskets are reusable.

thewird

 

Well alot of my gaskets broke during the tear down and just look old so I'll just replace all of them. Aside from that this is what Im planning:

Goopy 2mm apex seals
Atkins side seals
Atkins solid corner seals
Stock side, corner and apex springs
2 main bearings
viton oil control rings
thermal pellet
oil chain
front and rear oil seals
new OMP lines

And parts that are up in the air right now:
Goopy refurbished rotor housing service
oil pan brace
omp adapter from rotary aviation
and polyurethane motor mounts

 

Preliminary cleaning on front rotor





Someone please confirm this but I think I need a new bearing...

 

How did you get the rotor that clean o.O

thewird

 

Ray Crowe at Malloy Mazda gives really good prices for OEM stuff, and ships fast. He is also very knowledgeable on what parts you'll need with a general description of what you're looking for (if your parts manual is hard to read). other than the 2 exhaust manifold to block gaskets and the exhaust studs/nuts prices aren't that bad.

Getting the injectors cleaned is a great idea, sent mine to witchhunter and they even replaced the pintle caps and put on new o-rings. New FPD if you're staying stock and fuel filter good idea to do while you're at it too.

It's a dangerous thing going in there, next thing you know you'll be up to your ears in new parts

If you're replacing the OMP lines you might as well get the stainless steel ones, they're about the same price.

 

Either the copper washers for the OMP or the oil filter banjo are a little odd sized. Can't remember which. As mentioned above, just call Ray at Malloy.
As for cleaning the rotors, the fun really begins when you clean all the carbon from the seal grooves. Save your old hard seals for that job.

 

I'd replace that rotor bearing. Depending on mileage, it's a very good idea to replace both rotor and both stat gear bearings.

 

@thewird- Cleaned it in parts cleaner, then followed pineapples advice and used a wire wheel very carefully on it

@twinside- thank you for the advice, though I wont be buying mazda omp lines, there is a thread on how to make your own, and it is only about $15 in parts

@sgtblue- Thank you! looks like I'll add those to the list

@Rich- Thank you, the engine had 120,000 so I'm sure they are toast.

Preston

 

Squeaky clean

 

Sorry but I have to ask...have you done a engine rebuild before...of any kind? I HAVE NOT! I am considering do this to my FD.

I am not a mechanic..........but I am mechanically inclined and have access to a Auto Hobby Shop and tools.

WOuld you recommend giving it a try?

 

sorry for the drunk post, but if you're mechanically inclined, have a shop, and especially if you have a friend that's done it before, DEFINITELY give it a try.

just my .02, but that's what I'm doing.

 

Buy this and then decide if its something you could do...

http://www.rotaryaviation.com/overhaul_video.htm

thewird