im gonna start to rebuild my 1987 rx7 13b. i was just wordering if anyone had any tips. i will post my progress and any he3lp inneed when i get to certain points. i also need to know what i need to purchase to make this engine reliable and last. as of now all i have is a mazda oem gasket set... which does not include the apex seals. so any suggestion on good products would be appreciated

 

Rebuild video from akinsrotary.com or rotaryaviation.com

I think maybe a full rebuild kit would be in order . As you would not know what you might be needing.

ps; you might wanna try the search button too:P

 

For reliability, I have learned to use stock Mazda apex seals, they seem to be the least resistant to warping and are the most "housing-friendly" seals. Also if you want a longer-lasting engine then save up your cash for new rotor housings. Good used ones are often used, but you might not get more than 40 or 50k miles out of them before rebuilding again. There are several good threads on this stuff so use searches.

 

yum yum new rotor housings would be great but they too damn expensive.
get alot of mineral solvents and alotta carb cleaner so u can make ur parts nice and clean

jimmy

 

See the following topics in the order posted:

https://www.rx7club.com/forum/showthread.php?t=395019
https://www.rx7club.com/forum/showthread.php?t=383817
https://www.rx7club.com/forum/showthread.php?t=303299
https://www.rx7club.com/forum/showthread.php?t=374810

 

No, those are always used, no point is throwing money way if they are with in spec, thats why they have specs. Ok not always, but not really worth it to replace them if no out of spec.

When rebuilding just take your time, pay attention to detail, meaning clean the parts well, chase the threads on all the major fasteners such as the tension bolts, and the front housing.

As mentioned above I would buy the Atkins video, made the rebuild process much easier, and dumbs it down, reading isn't as fun when you have a video with **** music in the background, and the voice of the announcer at a strip club.


Good luck.

 

I don't mean to suggest not to use a housing that is on spec, the engine I'm rebuilding right now will have used ones. Most good used housings have slight warpage and thickness variation, at least some chrome flake, and mild chatter marks even within spec. I was illustrating the difference in longevity between new vs used.......da man said he was looking for longevity....lol

 

hey thanks guys.... i will make sure to order that video it sounds like it will help tremendously.

i will make sure to post my progress as i go

thanks

 

Reusing housings depends on your budget. They are great for getting the engine back running for cheap, but won't last as long, its a proven fact. Even if its in spec if could only last 30k miles, or it might last 80k, it all depends. I'm actually going to get my housings cermet coated by JHB (once I get more money), but thats almost as expensive as new housings, approx 310 per housings plus shipping.

 

Hey Sideways....how's your rebuild going?.....are you on hold waiting on funds same as me?....lol

 

alright i bought the video last night.... i am gonna start tearing it apart next week hopefully