OK. Here's another on for you lot to argue about :)

[bobster]

Any good bike garage should be able to sort the stripped thread without much trouble and without removing the cylinder head.

I personally would use a Timesert thread insert, which can be fitted without stripping the engine...........I did many when in the trade.....I even did cars for the local Ford dealership....
They require to be fitted when the damaged cylinder is on the compression stroke ( both valves shut) and use the special taps with plenty of grease so all the swarf sticks to the tap and doesnt fall into the cylinder.Once the tapping has been done and the insert fitted with the special instalation tools the cylinder needs blasting out with compressed air to remove any swarf that may have managed to sneak into the cylinder.

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Then the engine needs to be turned over / run with the plug left out / removed to blow out the cylinder!

Next!

[lomsavage]

I aint no mechanic. I'm a artist

Pete

There is an answer to that, but this time I'll leave it for H...

ME !!!!


i'm a good boy i am (in bestest cockerney accent)

[johnr]

feed some string, or a long strip of cloth through the plug hole with the cylinder on bdc before the compression stroke, when theres enough in there, turn the crank over with a spanner, the string or cloth will get all squished in the combustion chamber and prevent any swarf dropping in there. after its been repaired (use a timesert, anything else and you will just need to do it again in a few years) just suck any loose swarf up with a hoover then hook the string/cloth out and pull it back through the hole.

[bobster]

I used to use this method to change valve stem seals on SD1 Rover and Vauxhall Cavaliers etc, etc ( when I was a car mechanic)....without having to remove the cylinder heads..........but just to hold the valve shut whilst you removed the valve springs and knackered seals!

Never had a problem with any of the plug thread repairs I did.........I certainly didnt introduce any foreighn bodies into the cylinder whilst I did them !

Never saw the need!