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Flogged out 477

Hardly, but headlines are catchy, I measured and compared the Ring Gaps on the 477 that has done the Various Dyno runs and about 4000kms since installation on 12/5/21

Dunno why I didnt measure the Oil ring then but is has worked well.

Top was 13 thou and Now 23! ( Indian Cast Iron rings )

Second was 18 and now 21 ( same indian ring but didnt suffer as much )

Oil ring now is 14 thou  (NPK Japanese rings )

Piston is near perfect as is The Cylinder ( the wear is in the rings  😆 ) and will fit H2 nicely

This set up was reading 210 psi at every test previously and did not burn oil so I can expect it to do the same on its Sister.

Just not sure whether to flog out another set of Indian rings or go High tech hard chrome Top ring.

Uploaded files:
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  • IMG_20211125_222106_resized_20211125_105842132.jpg

Pretty soddy after 4000km. Australian fuel is adultered too? Maybe use engine cleaner? Is it knocking under load?

Those Indian rings are OK but not really high end. The German/Italian rings should not show any wear.

A difference in quality can be expected considering the Indian set costs the cosumer 6 Euros (in India) and the European 49 Euros.

With the Japanese Oil ring I use the 2 Indian top rings - and it works (so far).

But as the time of experimentation is now over I guess and we will settle on the high quality rings, at least for all customer 477 sets (basically with 2 exceptions I have always sent those to customers - the 2 exceptions got those from Japan).

Softer Rings, wear out quicker just as Brake Pads.

For my application I would  prefer the Rings wear out first. ( and Ive got a good supply )

Our Fuel is from Singapore I think, Im ok with the black stuff. This Piston is ready to be Implanted in H2.

New Top and Second ring ( Indian ) and reuse this Oil ring , Probably.

Shiny on the Bottom.

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Peter you will be able to do this in the dark soon.

Dool has reacted to this post.
Quote from Kiwi59 on 27. November 2021, 9:46

Peter you will be able to do this in the dark soon.

He already does it with his eyes shut, being in the dark would just make it easier.

Dool has reacted to this post.