FDJUST4ME

Ok, some of you may remember me, and I thank you all for your generous help.

I have really poor to no compression on the rear rotor of my 91 FC.

In the past I did this,
- ATF fluid in the plug holes
- changed gas
- checked fuel pump
- tried rotating engine with EGI fuse out
- checked timing


i eventually took it to my local shop and they said the rear rotor doesnt have enough compression to cold start the car

-When I was working on it we pop started it and drove about 2 miles before overheating.

- never got it to cold start.


So now I don't really know what to do

- buy a new 13B and swap it in, Im a noob with some tools but not a whole lot
(most work I have done on a car has been with the Seven.

- buy a 13b and have a shop swap it in

-rebuild the 13b I have by myself?(possible?)

- have a shop do the rebuild'

-sell the car and find a piston project car.


Thanks for any feedback

DarthNacho08

you're gonna need a rebuild, i'd research good rotary shops around your area and get it done there

rs_smoked_you

Sounds like you have a blown coolant seal or something.. Personally I'd tear it apart and inspect the damage and see if it's re buildable.. Depends on if your up for the project.. But you could probably swap the motor out pretty easily

thejallenator

iTrader: (14)

this motor is so simple if your up to it maybe find a rotor head in your area and have them help you rebuild. save tons and tons. chances are your going to end up buying an already bad motor, people just like to stiff people like that. id say turbo swap but that starts to kill your pocket book. or depending on what the car is used for maybe you could come join the dark side


really at this point its how deep your pockets are. so start by lookin in the check book then decide

incubuseva

iTrader: (13)

What would you be willing to spend? A rebuild at the cheapest, depending on what is wrong, may run you a few hundred + some beer. But that's only if you replace what was broken. I would suggest getting a fellow rotor head in your area to help you out (hence the beer.) A rebuild kit runs around 1300 or so. Having a shop do it will just add $$$ on top of that for labor.

Have you ever put stuff in tuperware bins + stacked them up? This motor is about that easy to build. I've pulled one apart + the only hard part seems to be putting all the rotor seals in + making them stay in there. But that's what some vaseline is for.

FDJUST4ME

Thanks for the input guys.

See I am at a point that my checkbook is deep enough that I AM CONSIDERING cutting my losses, I have 10k total but would only want to spend a grand or so.


I have seen a youtube teardown of the engine and it seemed alot easier than a piston engine to rebuild.

I am not sure if there are any rotorheads in my area.

originally the car was for a V8 project but my wallet quickly kicked me in the nuts and made me come to my senses.

so sounds like i should find a rotor head to help out buy him a few bears and buy a working 13b from a reliable source.

-Also the shop never did a compression test on it so I think its just somewhat of guesswork. but IMO thats exactly what is wrong cause it had no power when i pop statrted

SoloII///M

iTrader: (13)

If you're a noob with some tools but not a lot I can't recommend you do the work yourself. The motors are deceptively simple, but there are also so many little things to look for when you build an engine. You need to have a good eye for when things are "not right" in addition to being able to make accurate measurements versus the various tolerances.

For instance, you say the engine is overheating - you'll need to carefully inspect all the o-ring lands, the coolant passages, warpage of housings, etc. If you're comfortable with that then go for it! But it isn't necessarily as easy as everyone wants to make it out to be, at least if you want to do it right.

I would pick up a used keg and swap it in (or have a shop do it) if I were in your shoes.