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Hole in piston

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Hole in piston
Chris KC Offline
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#2
30-09-2018, 12:36 PM
(30-09-2018, 11:12 AM)Colin Cheesman Wrote: Hi all, have a friend new to Austin sevens, he had just got his newly acquired 35 tourer on the road and joined us today on our annual Rally. 20 miles into the run from home, engine noise and some smoke from engine bay, photo below tells the story. Question is, what may have caused it? and is it viable to replace the piston, hone, and new rings all round. 
Any suggestions greatly appreciated.

Off the top of my head - running with weak mixture / over-advanced?

Replace piston - certainly. Just check nothing else was damaged (where did the bits of piston go?)
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Messages In This Thread
Hole in piston - by Colin Cheesman - 30-09-2018, 11:12 AM
RE: Hole in piston - by Chris KC - 30-09-2018, 12:36 PM
RE: Hole in piston - by Charles Levien - 30-09-2018, 05:13 PM
RE: Hole in piston - by Bob Culver - 30-09-2018, 07:48 PM
RE: Hole in piston - by Colin Reed - 30-09-2018, 08:08 PM
RE: Hole in piston - by Ian Williams - 30-09-2018, 08:22 PM
RE: Hole in piston - by Colin Cheesman - 30-09-2018, 09:51 PM
RE: Hole in piston - by Colin Cheesman - 01-10-2018, 02:59 AM
RE: Hole in piston - by Tony Press - 03-10-2018, 11:23 PM
RE: Hole in piston - by Ian Williams - 01-10-2018, 05:05 AM
RE: Hole in piston - by Colin Cheesman - 01-10-2018, 05:36 AM
RE: Hole in piston - by Ian Williams - 01-10-2018, 06:36 AM
RE: Hole in piston - by Chris KC - 01-10-2018, 10:07 AM
RE: Hole in piston - by Ian McGowan - 01-10-2018, 10:15 AM
RE: Hole in piston - by Ian Williams - 02-10-2018, 04:28 AM
RE: Hole in piston - by Ruairidh Dunford - 02-10-2018, 08:10 AM
RE: Hole in piston - by Alan - 02-10-2018, 09:34 AM
RE: Hole in piston - by Chris KC - 02-10-2018, 12:16 PM
RE: Hole in piston - by Mark Dymond - 02-10-2018, 10:35 AM
RE: Hole in piston - by Alan - 02-10-2018, 12:30 PM
RE: Hole in piston - by Colin Cheesman - 03-10-2018, 05:59 AM
RE: Hole in piston - by Ruairidh Dunford - 03-10-2018, 07:42 AM
RE: Hole in piston - by Bob Culver - 03-10-2018, 08:21 AM
RE: Hole in piston - by Chris KC - 03-10-2018, 08:47 AM
RE: Hole in piston - by Phil Kingdom - 03-10-2018, 03:05 PM
RE: Hole in piston - by Alan - 03-10-2018, 07:24 PM
RE: Hole in piston - by Ruairidh Dunford - 04-10-2018, 08:25 AM
RE: Hole in piston - by Tony Press - 04-10-2018, 11:47 PM
RE: Hole in piston - by Colin Cheesman - 04-10-2018, 09:55 AM
RE: Hole in piston - by Bob Culver - 04-10-2018, 02:02 PM
RE: Hole in piston - by Chris KC - 04-10-2018, 05:21 PM
RE: Hole in piston - by Ruairidh Dunford - 05-10-2018, 06:13 AM
RE: Hole in piston - by jansens - 05-10-2018, 06:57 AM

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