| Author |
Message |
    
lee_billington
Member
Username: lee_billington
Post Number: 17
Registered: 05-2011
| | Posted on Monday, August 01, 2011 - 04:02 pm: | 
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OK I've done it have my lathrop apart and my Otto catalog said he wound grind rings down.
and today Mark say I need to order from Niagara
$25 each and 6-8 weeks.
I need 4 x 9/32 rings
is there any other supplyer?
Lee |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 610
Registered: 07-2002
| | Posted on Tuesday, August 02, 2011 - 08:16 am: |
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Order the 5/16 rings and have them ground locally. We usually remove about .030" from the inside of the rings, they are much thicker than the originals, the heavy wall pressure causes too much drag. This makes the engine hard to start and reverse. |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 611
Registered: 07-2002
| | Posted on Tuesday, August 02, 2011 - 08:22 am: |
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Check your ring lands, if they are worn you can have the pistons machined and use the 5/16 rings. No need to do all four, two compression rings is all most modern engines use, I had a Nissan automobile down several years ago that only had one compression ring and an oil ring. |
johnny
Senior Member
Username: johnny
Post Number: 417
Registered: 03-2006
| | Posted on Tuesday, August 02, 2011 - 10:39 am: |
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Otto Gas Engine Works
Dave Reed 410-398-7340
http://www.pistonrings.net |
lee_billington
Member
Username: lee_billington
Post Number: 18
Registered: 05-2011
| | Posted on Tuesday, August 02, 2011 - 10:51 am: |
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my local Mach shop say he'll grind them for me thanks.
it's the ezy things we over look
thanks
Lee |
