Hi everyone,
have two broken rotors (detonation).
In first rotor a little barrel barrel got caught because of detonation, also both side seals near this barrel got caught and poorly springy. Is it dead rotor?

In first rotor we have small but deep scratch. Also apex seal springy hard in the middle.

Please, advice, should i change both rotos or only first?
Does anybody have new rotors for fd3s?

Sorry my english

 

OMG?!?!?! I am sorry for you man, I am far from an expert but I believe both will need replaced. Hopefully someone with a bit more experience chimes in for you soon.

 

Hard to really tell the condition of the rotors without inspecting them first hand to feel the grooves and the damage. Your best be is to see if they can be saved by sending to a vendor. They can best assess damage, recommend new vs refurbish the rotor.

I would replace both if I'm replacing one.

 

What about the houses? I can imagine that if the rotors are in that shape there would be some damage on the houses too.

 

i very highly suggest u contact Adam at rx7specialties @ rotaryengine.com , if anything can be repaired he can do it and if not he offers the absolute best prices on engine parts, yes even better then Ray@ malloy. But for anything other then engine parts contact Ray@Malloy.

 

Both housings have deeep scratches ))) so i bought it too...
and i know now the best way - change both rotors... my money!!!! : (((((

 

o basicly a new (or rebuild) engine......

 

i don't think i would recommend reusing the rotor, the gouge near the tip will apply more heat to that one spot on the apex seal and create a weak spot in the seal. you could potential reuse it if you run a more durable seal than OEM/Atkins and deburr the other gouges but do so at your own risk.

the corner seal slots can be reformed by using old junk corner seals and expanding them to get the original shape back.

paying a shop to repair the rotor would likely cost as much as a good used replacement.

 

Thanks, guys! I'll buy new rotors.
One more question: WPC treated apexes are better than original?

 

no but they are safer

 

Thanks guys ))
My car:

 

i don't even believe they are safer. the only thing the treatment realistically does is cause the seal to wear quicker initially.

 

Save the money, use standard seals!

 

Standard seals cost here more than 400$, wpc - 280

 

will make a very nice pair of paperweights for your office desk, once properly cleaned up of course.
Have you found the cause of this issue?
Do yourself a favor and get a known, good complete engine, which should be way less money than all the parts that thing is gonna need, plus the labor and time.

 

WPC is a treatment, not a seal.

 

i know

 

Might as well get new ones to be safe. Like above posted. Would make sweet desk decorations.