Rings for a Tecumseh HS-50

old-timer

Scamming Member
#1
Anyone got a set of piston rings for a HS-50 ?
I've got one that I'm in the process of rebuilding and that's all I'm lacking.

Vic
 
#4
well Vic, this is the proverbial "can of worms" ....is the cylinder excessivley worn?..has it previously been overbored (piston should be stamped as so...) ? ...is it worn tapered...?....is it work hardened or "glazed"...?...does it need to be bored and honed or just honed to provide a fresh surface for the new rings to seat on...?? .how will you hone it?? flex-hone...ball hone.... expanding drill hone...? .what will you use for lubricant when honing....did you thoroughly scrub the cylinder with clean with hot soapy water and a brush so it's microscopically clean...otherwise you wasted your time :doah:

..or maybe just pay a shop to professionally hone it and clean it....:shrug:

In the end....it's only a lawnmower engine...assuming it's still std. bore and there is no appreciable ridge left at the top of the cylinder, you can do a quickie hone job...wash it out good...check to make sure the replacement rings don't have excessive end gap ....and let it rip.




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old-timer

Scamming Member
#6
I already honed the cylinder with a flex hone. I didn't need much, as it was in real good shape. No ridge, no scratches other than the normal ring type. Cleaned up the valves and ground the seats. Guides look good.

I have a commercial gunk tank I use when honing and it works good. I dont believe this motor has ever been apart from what I see.

Vic
 

old-timer

Scamming Member
#8
the rings should still be available through a small engine site,I believe this is the std. size ring #33568. double check on it to make sure.

Thanks I'll check,
I've seen a couple set on ebay, but I thought the price was a little steep.
As I recall $24.95 plus shipping, and that was just the 3 rings.

Heck I buy 5hp Briggs complete rebuild kits for $39.95 :shrug:

Just saying lol.

Vic
 
#10
Check Partstree.com or Outdoordistributors.com, p/n is 33567 replaced by 40004. But best you double check based on your model/type motor. Available cheaper on Ebay.
 
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