well now i have the housings degreased what else do i need to do for cleaning ,any tips before i put it bacck together ,and corner seels and springs are recomended i heard people useing 3rd gen ones whats the reason for that, just curious,thanks guys

 

I would have the flat housings resurfaced.

 

They dont look that clean from the pictures

 

what do you recomend thanks guys

 

I'd use at least another can of engine degreaser on that thing

also http://www.atkinsrotary.com/store/customer/home.php

has everything you need for a rebuild

 

by resurfacing do you meen take it to a machine shop ,and if so how much to take of

 

To be resurfaced by a reputable company that does or has done rotary engine flat housings before. Mazmart might do it, Rick Engman builds race rotary engines there.

 

the fd corner seal springs are used because the earlier springs are just thin wire that doesnt work very well, you often find the earlier ones in used motors have undergone plastic deformation turning flat, no longer performing the duty of a spring.

earlier:


the fd springs are more robust:

 

WOW!
thats a bit of a difference!!
now i see why they use them!

 

yeah, and the cost of the fd springs is basically identical

 

make sure you get the old dry seal off in the grooves

 

thanks for the pics now i ready to order knew apex seals ,who has good luck with there seals under high boost,i have my fuel set up ,does any one have pics of before and after a rebuild ,thanks guys

 

I have a bunch of photographs from when I built the motor in my FC:
http://pengaru.com/~swivel/cars/rx-7/pics/10-29-2002/

 

pengarufoo them pics are so good ,what tips do you have putting everything together

 

Take them to a machine shop and have them cleaned. Why waste so much effor scrubing them to only get it moderatly cleaned?

I drop all engines off and pick them up next day for 60$. Well worth my time.

 

My local trans shop washed my S5NA irons housings front cover. I washed the rotors in purple stuff I got in a five gal. container at Home Depo. The stuff got them clean as new I am planning on new rotor bearings so the fact that this purple stuff will kill bearings (aluminum) is not a concern I have but others should be aware.

 

tips? hm...

Make sure everything that matters is clean, take your time, be organized and prepared.

Use plenty of vaseline on the rotors to keep the small parts in place, it makes it alot easier.

Be sure to use liberal amounts of assembly lube on the bearings and stationary gears, the first time you start the motor alot of parts that are normally well lubricated won't be unless you do.

Prime the oil system before you start the car, usually people just crank the motor without ignition/fuel after buttoning her up and filling the oil sump to do this. On the first start you probably want to make sure you have a reasonably high idle, you don't want to barely limp the engine along on the first start at a few hundred rpm... this does not bode well for oil pressure, and you definitely want your oil pressure nice and high on a fresh rebuild first start.

If you can get your hands on a copy, watch the rotary engine rebuild video, it's helpful in familiarizing yourself with the process, making you much more prepared.

Be careful when assembling the rotors, don't drop the rotors or drop things on them, the points are soft/delicate, very easy to damage causing the apex seals to bind in their grooves... they are also very sharp and can cut you easily.

Make sure you don't forget the cap from the tube of sealant on the bottom of the engine while installing the oil pan.

... thats all i can think of at the moment, good luck

 

that is excellant any one else for a first time rebuild