Valerie Donovan

I have a 2005 Mazda Rx8, I believe the Apex Seals just went out. Looking for a mechanic that is able to to dedicate the time in the repair. More detail will be included upon request.

Area: Pittsburgh Pennsylvania

200.mph

iTrader: (9)

is this really your 3rd thread on this topic? you dont just replace apex seals. if they are bad you need a complete rebuild or a a built short block and engine gasket kit. did you actually get a rotary specific comp? what are the 6#s and rpm? did you research any of what i told you?

NotAPreppie

What 200.mph said.

Go to a Mazda dealer, pay the 1-2 hours of labor for a real rotary compression test. They will give you 6 (or 8) numbers total. Post them here and we'll help you out.

If you genuinely do need new apex seals, the engine will have to be removed from the vehicle and completely disassembled. All seals (apex, side, corner, coolant, oil) will be replaced. A good rebuilder will also check the tolerances on your irons, etc.

Rotary specialists are relatively rare. You're probably going to have to freight your engine off to one. There's Banzai Racing in north-central Indiana and Rotary Resurrection in TN.

200.mph

iTrader: (9)

op hasnt listened in any of the other threads he/she started so i doubt they will now. possible one of lil doc j#s other accounts? lol

gwilliams6

Experienced rotary engine rebuilders nearer you:
http://www.irperformance.com/
IRPerformance | 155 Carr Ave, Keansburg, NJ 07734 Tel. (732) 662-1794

http://jprimports.com/
JPR IMPORTS.COM:: South Jersey's Fastest Rotaries
Blackwood,NJ


Some other excellent ones, but further away:

http://black-halo-racing.myshopify.com/
http://shop.pettitracing.com/
http://www.pineappleracing.com/
http://www.racingbeat.com/
http://rotaryperformance.com/
http://www.rotaryresurrection.com/

gwilliams6

Below is our chart to read your six rotary-speciifc compression numbers
RX8club's Rotary compression numbers chart

You should have gotten numbers in a format something like this:
Rotor 1: 7.5, 7.6, 7.5
Rotor 2: 7.2, 7.3, 7.3
250 RPM

- The 6 numbers, 3 for each rotor, are your compression scores, one for each face of each rotor in the engine.
- If you don't have all 6 rotor face scores and at least 1 RPM number, your compression scores are going to be vague and hard to interpret.
- You may also have your compression scores in a different scale, such as PSI.
- The RPM is the speed at which the test was done.
- The RPM is critical to interpreting the numbers, as rotary compression changes with engine speed, especially at low RPM.
- Since the engine is spun by your starter, this is ALSO a good indication of the health of your starter!

The general guideline for how good, or bad, the scores are, WHEN NORMALIZED TO 250 RPM AT SEA LEVEL!