Just Rings Or Pistons Too

[drake]

well my compression is 105 lb in both jugs .ive got .60 over wiseco prolites in there should i just get rings or a whole piston kit?

[fixitrod]

That'll be your call. A lot of people just put rings in. In my opinion if you have enough hours to wear out a set of rings, I'd be putting pistons in too. Rings are $40 or so and you can find a piston kit for around $130. Why have to replace the engine for $90 that you could spend now? Just an opinion.

 

When a piston fails the skirt breaks normally. The pieces go through the crank, clyinder and damage the head. Spend the extra $$$ now and save in the long run.

 

Oh, what it your altitude. Maybe your compression isn't really that bad. A way to tell if your rings are worn is to put a tablespoon of oil in the cylinder and re-do the compression test. If the numbers stay the same your rings are most likely fine and the gauge may be off. If that's the case, I don't see a problem because the cylinders have the same compression..... Again, just my opinion.

[boonman]

If you do re-ring it, it is best to hone the cylinders as well. This will let the rings break in. It all depends. I have re-rung motors with no problem. If it was my motor though, I would have to base it on how much use the pistons have. I would prolly just re-ring it..... Checkthe bore though. If it is oblonged, than you need to bore it...... Otherwise, the piston will break due to piston slap and excessive clearances.....

[Rescuejeff]

Loike Boonman said it really depends on the cylinders...by the way, how far came you bore the cylinder out before you have to have them sleeved or just shit can them and buy new???