Piston rings

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Model T Ford Forum: Forum 2009: Piston rings
Top of pagePrevious messageNext messageBottom of page Link to this message  By coreywalker on Sunday, December 13, 2009 - 06:17 pm:

Are all the rings sold by the vendors for cast iron pistons the same? Or are some better? I took the head off the engine I got last weekend and it looks good. I'm going to go with the original cast iron pistons. Hardly any slop, rods still feel tight. I'm going to disassemble it and put in a rebuilt mag ring, recharge the magnets and clean it all up and put it in my chassis. I want to try the cast iron pistons. post


Top of pagePrevious messageNext messageBottom of page Link to this message  By Aaron Griffey on Sunday, December 13, 2009 - 06:45 pm:

The cast iron pistons are just fine.
Some say the car will go just as fast as it will if you change to aluminum.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Fred E HoustonD on Sunday, December 13, 2009 - 07:02 pm:

Make sure there is no slop between the ring and the gap in the piston. In this case, each ring becomes an oil pump.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Sunday, December 13, 2009 - 07:11 pm:

Doesn't it help to reduce the reciprocating mass as much as possible?

At the very least, careful balancing is important.

rdr


Top of pagePrevious messageNext messageBottom of page Link to this message  By Noel Keefer on Sunday, December 13, 2009 - 08:03 pm:

Fred,
Doesn't the top ring need some clearance in the gap of the top ring. This enables the hydraulic seal action from the pressure that goes behind the top ring and forces it outward like modern cars?

I dunno. My car has aluminum pistons.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Noel Keefer on Sunday, December 13, 2009 - 08:07 pm:

Fred, I said clnc in the gap.
I probably should have said "the top ring should have clearance between the ring and the top grove". Nothing to do with ring gap.

Regards
Noel


Top of pagePrevious messageNext messageBottom of page Link to this message  By Noel Keefer on Sunday, December 13, 2009 - 08:08 pm:

groove, not grove.


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