The V8 Owners Forum -

Ive picked up a Rover 3.9 in bits all clean & ready to go, but the top two rings, can any one confirm the correct position ..
Rings are AE, one ring is square section with the AE logo on on one side.
The other ring has a 45 degree chamfer on the inside face/edge, it has "AE TOP" on the opposite side.
Easy to think that top should be the top groove, but I have an idea its second grove with the word "TOP"face up towards the crown, that would leave the chamfer facing down.
please if any one can confirm, thanks

A picture of each would help.

But the chamfered ring is most likely the 2nd ring, scraping downwards.

The other other ring is the same other than its square in section

The chamfer must go up according to the attached chart. This helps force the ring against the cylinder wall during the combustion stroke. But the markings on your rings are confusing so further comments from experts needed I would suggest.

Pxr5 wrote: ↑Sun Jan 20, 2019 1:18 pm IMG_20190120_124959.jpgIMG_20190120_125017.jpg

This would be typical of a top ring, upwards as photographed. Although I see the chart above also says it could be a second.

Although pics and descriptions maybe unclear ?

Are those 3 different rings, or just 2 types ?

The one that says top....is also the one with the chamfer ? Or not ?

The first image, what is the face of that ring like and the rest of the profile. The photo doesnt show

Both inner and outer profile matter



http://slideplayer.com/slide/4395487/14 ... +Types.jpg

https://www.hotrod.com/articles/hrdp-09 ... ring-tech/

And top could be top ring...or top of ring. Although often top of ring marking is just a little dot.

I've just looked at a set of AE rings (3.9 Rover) and the top ring is a plain ring with AE marked on 1 side and the second ring is chamfered with TOP AE marked on the side opposite to the chamfer suggesting that the chamfer goes downwards. The absence of the word TOP on the top ring suggests that either way up is ok. It seems that modern thinking is putting the chamfer downwards for the second ring. I have some rings from Real Steel for which the instructions are clear that the second ring chamfer goes upwards but I've had these rings for over 10 years.

Thanks for all the help, the pics show the same ring, the one with the bevel/chamfer....devonman, yes its second ring bevel downwards..cheers all!

Again....you must consider the face profile too, not just how the back of the ring appears.

On the ring that doesnt say top, are there any markings at all on it ?