rotary gurus! input appreciated

So im between a rock and a hardplace. I bought s5 na engine rotors A and B weight. So i start cleaning A weight. No problems. Now i move onto B... Im not sure how someone could have done this NA power... Too much timing/poor tuning, detonation? Corner seal and apex seal grooves are great shape. It looks as if a corner seal got sandwhiched during a rotation, but that would also berkeley up everything else on the rotor and housings (note my housings are not from this engine or anything else for that matter) Im debating on using it since its gonna be an na streetport build. Not a power monster but reliability beast... What say you grm? And yes im trying to get my money back for these, at least part of the total.

Washer or nut went through the engine.

If it's oil tight, I'd just run it...

I've seen pistons reused that shouldn't be and in worse shape then that rotor, so I'd run it. Just make sure you don't have any rough edges that could possibly make a hot spot.

Here is another photo Mind you right now the current engine has 3 years running this:

Yes there is a hole that goes through my apex seal groove and into my corner seal slot

get another

Ya i would look for another one.

If the only issue was the dent, I would run it. But the screwed up corner seal area makes it shelf display piece.

JamesMcD wrote: If the only issue was the dent, I would run it. But the screwed up corner seal area makes it shelf display piece.

Read: that's a different rotor.

Run it if you can get some money back.

Get another one. Consider the price of the rotor vs. the price of rebuilding the engine at a later date, plus your effort. It isn't worth it. I sincerely regret building a past engine with mediocre parts.

Yeah i contacted the seller and he luckily has a replacement one to send to me. Im not very confident in his abilities however, i hope it is the right rotor and rotor weight... Im also weary that he somehow has an extra a or b weight code s5 na rotor laying around, or hes a normal rotard like me and has an odd stockpile of spare parts...

The picture with the hole in the rotor is a different rotor, that rotor has been in my engine running for over 3 years lol.

Did you get that from the guy in Washington, NC?

In reply to Brett_Murphy:

The one with the hole in it? No idea. The dented one was from of all places, cali. Apparently its from rx7hut.com i had got it through again of all places, rx7club.com.

Got the rotor in today and it appears to be an fd. They are machined the same way but the tubs are different.

Edit. Forgot photo

Might be an S5 rotor if the other is an S4. Higher compression, smaller tub.

Nope, all s4 tubs are casted into the rotor. S5/6 are machined.

S6 are machined, I thought S5 were not, and this was how you could tell the difference.

Otherwise, there would be no difference, since S6 and S5 Turbo are the same weight and compression.

But both of these are supposed to be NA

annnnd E36 M3 hits the fan.

http://www.rx7club.com/bad-fugly-members-185/beware-do-not-sale-fidelity101-1035416/

cliff notes:

I get home from work yesterday,I get the package, I inspect the rotor. I post it here MINUTES later I get a call from paypal mediating this issue.

Sheesh, sounds like the seller is quite a piece of work. Yelling while on a mediation call? Pity PayPal can't require anger management. Nice dick move on his part with the 'do not sale' thread too, since if you'd not been around there for a while he'd have been able to smear you at will due to the minimum-post limit to even see the thread to respond...

Dude!

That was crazy.

I posted a little sumthin sumthin over there in support.

Rob R.

I read most of that dude's posts in a search... He's a train wreck.

In reply to Ashyukun:

its funny because the paypal guy said "sir you know we have this conversation recorded..."

so im gonna ship them back after I cleaned the one very nicely, luckily it didn't take long to clean. I give paypal the tracking# and they refund my money.

but now I gotta find some S5 NA rotors, again... grrrrrrr

Swank Force One wrote: I read most of that dude's posts in a search... He's a train wreck.

exactly, I wish I had a home alone voice recorder to record this moron.

even to an untrained eye of a rotard, you can clearlysee the tubs have different features that are machined in the two components.

different shapes/depths = different compression ratios.

Also, thanks Rob

fidelity101 wrote: In reply to Ashyukun: its funny because the paypal guy said "sir you know we have this conversation recorded..." so im gonna ship them back after I cleaned the one very nicely, luckily it didn't take long to clean. I give paypal the tracking# and they refund my money. but now I gotta find some S5 NA rotors, again... grrrrrrr

For as much grief as I generally hear PayPal get over many things, the one time I've had to get a refund for something (seller apparently never shipped a G-body limited-slip diff I won) they were pretty good about it and it wasn't a problem.

Sorry I can't help you on the rotors- only rotary parts I still have are the dead rotor & housing my former 'vert had that needed to be replaced due to the engine ingesting a large flanged nut (not my doing, bought it with the engine seized for reasons then unknown...). It was pretty spectacular so I figured keeping them around worth more in amusement than I'd get for them in scrap.

I did luckily find on CL locally a "blown" s5 engine, that needs "apex seals" and they are putting in a 3.8L GM for a chump car. Spoke with the guy, doesn't know much about rotaries, thinks they're neat but I'm going to scope it out.

Everyone sells blown engines saying that they have bad apex seals, but they just assume that because its a rotary, so we shall see...

I threw my 2 cents in on the thread as well