Eccentric Shaft End Play?

[FC Zach]

The specifications within my Haynes manual specify that the "Standard" is .04 to .07 mm with a max of .09 mm. I started off with my "K" spacer and had a reading on my dial gauge of .015 (give or take .002 mm). I felt that may have been a little too tight so I borrowed an "X" spacer from jfaplanet and received a reading of .02 mm (maybe .002 mm more). IIRC the "S" and "T" spacers are uncommon and was wondering if the reading I received from the "X" (.02?) was good enough, or is it too tight still? ? ?

[FC Zach]

http://www.youtube.com/user/jfaplanet#p/a/u/0/l6AFE8bYFDM

Here is a video if it works.

[TitaniumTT]

.0015" is what I shoot for. Basically a little tighter than Mazda's min. What are you torqueing the front nut to? You know you can tighten it a little more to snub it up a wee bit. I usually go for 110-115ft/lbs.

[FC Zach]

.0015" is what I shoot for. Basically a little tighter than Mazda's min. What are you torqueing the front nut to? You know you can tighten it a little more to snub it up a wee bit. I usually go for 110-115ft/lbs.

I didn't torque it at all, just ran a battery impact on it and the rear nut for a few seconds (probably around 90-100ft/lbs given the tools specs) just for fitment purposes but now that you mention it I can see the specified torque being crucial to the fitment process. Only thing is, is that will possibly get me a little less play. If you successfully run yours with a run-out of .0015mm with no issue then I'll stay with the "K" where I had the initial .015mm run-out and of coarse rechecking it after properly torquing the front and rear.

[FC Zach]

Sorry TT, misunderstanding on my part. I now see that you were stating your measurement in inches which is .038mm. So now my question is,

Who has a "S" or "T" spacer? Can these be purchased from Mazda still?

[TitaniumTT]

Are you sure those are in mm and not inches? I can't tell from the vid. It's rare that spacers need to be changed out.... unless you changed bearings or rotors.... I'd try Rob @ Pineapple. He told me once that he has a drawer full of them if I needed an odd size. MT probably has them as well and I'm sure Ray Crowe can get them as well.

[FC Zach]

Yeah, all new bearings (came in the RX8 stat. gears). Just ordered some spacers from Atkins, got both S & T to be sure.

[My5ABaby]

So to clarify Zach, the issue is that your shaft isn't getting enough play?

[djmtsu]

:rofl:

[TitaniumTT]

Zing!

[FC Zach]

Wow! Should've seen that commin

[TitaniumTT]

That's what she said

[FC Zach]

:icon_no2:

[My5ABaby]

:icon_no2:

Is that the look on her face afterwards?

:lol:

[djmtsu]

Leave it to this group to turn a serious thread into a dick and fart joke.










































poop

[Judge Ito]

some wrong advice in this thread. do not torque pass 75ft pounds. use some lock tight and aim for .0025 end play, this is in inches. hope you have a good dial indicator.

[TitaniumTT]

The FSM states, 80-98 ft/lbs.

[FC Zach]

I got it all torqued down, I did use LocTite and double checked end play afterwards. I had been reading the gauge incorrectly and triple checked to be sure. I had a reading of 0.039mm with a 8.00mm spacer. The S and T spacers I had ordered from Atkins are no longer needed, I'll just hold on to them for the future, someone may need them.


So far so good, the engine is running smooth and started right up on first crank after priming. Starts up hot, no leaks, and lookin good. Already put 260 miles on her and I'm keeping a close eye on things for the next few hundred miles. All in all I'm proud of the turn out and appreciate everyone input, Thanks!