How much can you over bore a 8-98 and 8-105?

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19 Dec 2017 04:26 #33878 by mikespeed35
mikespeed35 replied the topic: How much can you over bore a 8-98 and 8-105?
These blocks are notaries for cracks around the valve seats and in the valve guide area. Be sure and have the block magnafluxed after it is cleaned up. Remember that hot tanking it will remove the Babbitt. Don't invest too much money in it till you are sure there are no cracks. The long term success of repairing a cracked block are not great.
CORDiallyMike

Mike Huffman

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19 Dec 2017 04:31 #33879 by mikespeed35
mikespeed35 replied the topic: How much can you over bore a 8-98 and 8-105?
As far as the "home brew" penetrating oil, what keeps the acetone or lacquer thinner from evaporating out of the mix unless used immediately?
CORDiallyMike

Mike Huffman

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19 Dec 2017 12:48 #33881 by Curt Schulze
Curt Schulze replied the topic: How much can you over bore a 8-98 and 8-105?
I keep mine in a squeezable ketchup squirt bottle.

The bitterness of poor quality remains long after the sweetness of low price is forgotten.
Be of Good Cheer
Curt

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20 Dec 2017 16:02 #33885 by RandyEma
RandyEma replied the topic: can you over bore a 8-98 and 8-105?
Hello Merry Christmas. Do not bore a Lycoming engine more than .080 over. R

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20 Dec 2017 16:07 #33886 by curtiss
curtiss replied the topic: can you over bore a 8-98 and 8-105?
Thanks, I am hopeful we can get away with no more than 30 over as they did not look too bad.

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