Confirmed : NYCGPS's Motor is dead~
04-15-2009, 07:20 PM
#301
Certified Mazda Tech
04-16-2009, 09:09 AM
#302
Although I changed my plugs, filters, and all fluids recently as I hit 20k miles, I was still wondering why it felt so much stronger. Interesting!
...Also key thing to remember is that your new engine will be building compression over the first bunches of miles (in reality most motors build compression slowly for a while) so your motor will be even stronger in like 3k miles if you make sure to take care of it properly during break in and such (mazda rotaries come with a built-in 20k mile internal switch, so i generally consider a motors compression to peak there (altho possible in hundredths of a psi).
.....
.....
04-16-2009, 11:56 AM
#303
Certified Mazda Tech
the real effect of it as far as "feeling" goes I don't think has ever been really determined, im pissed that i cant find it again in the diagrams i'll give it another go again, so many manuals to browse and it's only in a diagram it's never actually written about.
kevin.
04-16-2009, 05:12 PM
#304
Lubricious
Join Date: Oct 2003
Location: SF Bay Area, California
Posts: 3,425
Likes: 0
Received 4 Likes
on
4 Posts
...I'll try to take the best pics i can inside the exhaust ports, i have a video snake i can slide thru the spark plug holes too so we can check carbon conditions but she's been decarbed at least once, maybe more, i was hoping for just a stuck seal but went old school after the comp test (ATF and a steam bath if you must know lol) and nothing improved.
kevin.
kevin.
04-17-2009, 03:31 PM
#306
Just finished my first tank of gas (didnt drive much since I was kinda sick for the past 2 days)
170 till the light turns on ---- MUCH better than the old motor IMO. This 170 miles include a lot of "full throttle and stop and go and stop and go and redline and ...". You get the idea. If I do that on the old motor, I probably get 120-130 miles
YaY !
Oil temp hits 105 today, damn traffic from Belt Pkwy
170 till the light turns on ---- MUCH better than the old motor IMO. This 170 miles include a lot of "full throttle and stop and go and stop and go and redline and ...". You get the idea. If I do that on the old motor, I probably get 120-130 miles
YaY !
Oil temp hits 105 today, damn traffic from Belt Pkwy
04-19-2009, 12:21 AM
#308
Certified Mazda Tech
kevin.
.
07-04-2009, 11:48 PM
#313
After reading this thread, I sent a PM to teknics because I had concerns about buying used RX8s. My budget don't allow me to purchase a new and old mileage RX8, so I am most likely stuck with an 04-05 RX8... I guess I might as well post the PM here.
Originally Posted by saynotopistons
Hi, I am currently in search of an RX8 and my budget only allows me to purchase old 04 or 05 RX8's. Being a 4-6 year old car, mileages are usually above the 30k mark. For example, I am taking a look at an RX8 in Jersey with 50k miles and it is an 04.
I have read nycgps' thread about his dead motor, including all the posts about dangers of not using premix. I read your post about the clear difference in the internals of a 13b with and without premix at 40k. It worries me knowing that the chances of me finding an RX8 that has been well taken care of (premix) is slim to none especially in the used car dealer networks.
Knowing that you are a Mazda Tech and have an expertise on rotaries, I would like to know if I am setting myself for a trap if I purchase an 04/05 rx8 with 50k miles without a clear history on its maintenance?
PS: Any other information and advice you can provide is greatly appreciated.
Thank you,
Robert.
I have read nycgps' thread about his dead motor, including all the posts about dangers of not using premix. I read your post about the clear difference in the internals of a 13b with and without premix at 40k. It worries me knowing that the chances of me finding an RX8 that has been well taken care of (premix) is slim to none especially in the used car dealer networks.
Knowing that you are a Mazda Tech and have an expertise on rotaries, I would like to know if I am setting myself for a trap if I purchase an 04/05 rx8 with 50k miles without a clear history on its maintenance?
PS: Any other information and advice you can provide is greatly appreciated.
Thank you,
Robert.
07-04-2009, 11:55 PM
#314
Well ... I cant tell its you ... if u're not in the rx8 ... cant see your face u know
So yeah, my new(reman) motor got its premix treatment since the first day I got it
the 5w20, I changed it out after couple hundred miles. 10w40 first I think, then I changed it again to 20w50.
if you want a 04-05 ... hmm, its a hit or miss.
cuz like me, I mean I did all my **** to prevent my motor going kabooooom. but ... guess I either got a bad build to begin with, or I start my premix way too late ( like 30+K miles)
while some people out there, probably use 5w20 all their life, change their oil every 7 K miles or so, never check their oil level, etc. have perfectly fine motor (or its just that they dont know its dying, whatever)
so ...
good luck buddy
Last edited by nycgps; 07-04-2009 at 11:59 PM.
07-05-2009, 03:39 AM
#316
How true, there is nothing worse when a Mazda owner comes into a Dealership Service Department and starts bouncing off the walls demanding this or that, particularly younger owners. You will get no-where, build a relationship with your service guy(s)..makes a huge difference.
And Kevin..well he is quickly becoming a Mazda LEGEND!
Ash
And Kevin..well he is quickly becoming a Mazda LEGEND!
Ash
07-05-2009, 07:53 AM
#317
8 oz per tankful.
These days, Its hard to have a tech that knows more than just replacing parts.
and tech that knows Rotary + a Rotor head himself is even more rare ... precious ...
07-05-2009, 08:43 AM
#320
our scheduled maintenance is set up at 20.000km, spark plugs intended over 60.000km or so..
This sucks!
They don't even know that coils and fuel pumps can go bad... we should write a letter complaining to mazda japan because this is why rx8 sales in italy are poor, and why mazda italia isn't selling directly the '09!
This sucks!
They don't even know that coils and fuel pumps can go bad... we should write a letter complaining to mazda japan because this is why rx8 sales in italy are poor, and why mazda italia isn't selling directly the '09!
07-05-2009, 08:56 PM
#325
ThEy MaDe Me Do It
iTrader: (7)
Join Date: Oct 2008
Location: Stump Creek, PA
Posts: 894
Likes: 0
Received 0 Likes
on
0 Posts
Sorry to hear about your loss, but glad everything worked out for the best. I'm at 88,000 miles and wonder when it will fail since I have no idea how it was ran up to the 76,000 miles I bought it at. Hopefully if it does go it does it before 100,000.
Hey tek, you should post those pics of the two motors pre mix and no mix, love to see the difference.
Hey tek, you should post those pics of the two motors pre mix and no mix, love to see the difference.