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Woessner 400 piston info needed!!

Joined Mar 2002
437 Posts | 0+
The Netherlands
Ok, so I finally have the last bearing I needed to complete my friend's FE400. Now I am mounting the Woessner piston and with it came three rings, one rather thick one with no chrome coating, one smal one with chrome coating and two very small ones which need to be combined with the oilscraper, right?
So my question is where does the thick ring go? This as it doesn't fit the upper position and the lower position is filled with the oilscraper/two small ring combination.
Or is the thick ring only added when mounted in a steel liner with bore 92??
 
maichusa said:
one with no chrome coating, one smal one with chrome coating and two very small ones which need to be combined with the oilscraper, .

Manufacturers most often supply ring sets to accommodate a conventional three ring piston.

Thin plated ring = Top compression
Thick cast ring = Second compression / scraper
Third 3 Piece = Oil control ring set

Simply use the top ring with markings up and the 3 piece oil ring set.

Dale
 
Hello Dale,

Thank you. I had everything in as you said already but just wanted to check for my own safety that I took the good guess.
BTW, I had a look at the old piston and this one had the same setup but the thick ring was installed. The piston looks to be of the same brand.
Again thanks, now I have some work on day 2 of Christmas!! :)
I am only used to 2strokes, can you tell :oops:
 

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