NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   Assembled Shortblock....question For Gurus (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/assembled-shortblock-question-gurus-10559/)

rxseven 01-12-2003 07:43 PM

Ok, I slapped together a shortblock today (remind me never to use Teflon coolant rings) and all went well. When I turn the eshaft via the front bolt with a wrench it turns nice and smooth with good whooshes. I can't turn it by just grabbing the shaft though. Manual says it should turn freely. Is it supposed to be free enough to just turn by hand?

vosko 01-12-2003 07:50 PM

i never tried by the shaft but i have tried by the flywheel. you will get a little resistance....

qwck10th 01-12-2003 09:05 PM

I have to use a wrench on the front nut to turn mine. No hand jobs on front nut, if you please:D



Wooshes are good.



Steve C

vosko 01-12-2003 09:08 PM

yeah front nut usually need ratchet now that i think about it.... oops https://www.nopistons.com/forums/pub...DIR#>/wink.png

93 R1 01-13-2003 10:10 AM

Whats wrong with teflon coolant seals?

Dragon 01-13-2003 11:43 AM

lol.. do you have spark plugs in it? if so you'll have compression and you won't be able to turn it by hand.. also, do you have any end play? You have to be carful when putting the front end together because if the spacer is not sitting inside the first needle bearing your going to have problems really quick... You should have a tinny bit of end play.. The engine I just put together 2 days ago will turn by hand but it takes a lot of force and a good grip on the e-shaft, but somtimes they are a little tight, but it'll break in... JUST MAKE SURE YOU HAVE SOME END PLAY.. https://www.nopistons.com/forums/pub...#>/biggrin.png

j9fd3s 01-13-2003 11:51 AM

i notice the same thing as dragon, you can turn it by the eshaft but its not easy. on the flywheel it should be fingertips



mike

Grizzly 01-13-2003 12:10 PM

The other thing is did you oil every thing as you built up?

75 Repu 01-13-2003 12:31 PM


No hand jobs on front nut




LMAO...



I just put together my engine last week.. I have to use the ratchet on the front but with the flywheel I was able to spin it by hand..

rxseven 01-13-2003 12:34 PM

It's all oiled up, no plugs on and is very smooth to turn with a wrench. I can even turn it with a small 3/8" ratchet. I am pretty sure I could turn it easy with a flywheel on in that case so I guess I am ok here.

As for teflon seals, they would not stay in the grooves no matter how much hylomar I used and the plates were not even upright or inverted. I had to clean the groove up and then use lots of vaseline for them to stay on. I spent more time messing with them than the actual assembly. It's stock ones for me next time.


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