I receive what is supposed to be a o-ring kit for my rebuilt. I think there is a lot a parts that are missing. Could you help identifies where these goes:



http://www-edu.gel.usherb.ca/cota280...it_numbers.jpg



1. Tension bolts

2. ??

3. ??

4. ??

5. I guess it's for dowel pins but there is missing one o-ring.

6. Rear stationary gear

7. Front cover ??

8. Front cover ??

9. Outside ruber o-ring

10. Inside o-ring



What o-ring is missing for my rebuild ? Oil rings and ??



Thanks

2 is the 9954-10-3801 distributor o ring



3 is n350-14-604 metering pump o ring



4 9954-10-1601 oil filter base o rings





looks like you're missing a dowel pin o ring



the o ring set doesnt come with any more than that, thats why its cheap

Oil O rings are not included in a regular gasket set either. The Atkins Viton ones seem pretty good.

Distributor o-ring, it's for the crank angle sensor ?



http://www.rotaryaviation.com/o-ring_kits.htm



This kit comes with oil o-rings and I paid the same price without oil o-ring and rear and front seals. https://www.nopistons.com/forums/pub...IR#>/angry.png

i think the o ring set for the late fc is the same one they use on the fc

As you mentioned - you are missing a Dowel Pin O-Ring...yes, that O-Ring Is for the CAS...why Is your Teflon Ring Blue? https://www.nopistons.com/forums/pub...#>/biggrin.png Mine was White. https://www.nopistons.com/forums/pub...IR#>/blink.png

I don't know why. This is the first o-ring kit that I bought.



On the inner o-ring I don't see any seam is it normal that should be placed near the intake port ? In the haynes and on the video tape they talk about that.



And why there is only 4 o-ring for the dowel pins ? Why it's only the upper dowel pins that need o-ring https://www.nopistons.com/forums/pub...1047683561.gif

There is a seam... look for a thin, orange stripe, about 1mm wide.



Oil flows through the upper dowels, from the rear to the front iron; this is how oil gets to the front stationary gear and MOP feed. As the oil pressure climbs up to 70+ psi, o-rings are used the oiling system stays sealed.



No oil moves through the lower dowels, so no o-rings are needed.