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Chain stretch does not correspond to your sudden onset of problem symptoms after fuel flooding?
Chain stretch is a wear out failure over a long time, & usually last the life of the engine in the K11.
Easily confirmed by;
scattered ignition timing observed with strobe timing light.
Vacuum gauge engine condition testing; see links for valve timing via vacuum.
[media=youtube]utUSI-JYhVU[/media]

http://www.mgaroadster.co.uk/Technical_Information/Suck It And See.pdf
Both tests can be done in 30 minuets total.
Specifically, read/ vacuum gauge test no.10, at the bottom of page "Suck It AND See"

[QUOTE="plmval, post: 560555, member: 10559"] Chain stretch does not correspond to your sudden onset of problem symptoms after fuel flooding? Chain stretch is a wear out failure over a long time, & usually last the life of the engine in the K11. Easily confirmed by; [LIST=1] [*]scattered ignition timing observed with strobe timing light. [*]Vacuum gauge engine condition testing; see links for valve timing via vacuum. [/LIST] [media=youtube]utUSI-JYhVU[/media] [URL='http://www.mgaroadster.co.uk/Technical_Information/Suck%20It%20And%20See.pdf']http://www.mgaroadster.co.uk/Technical_Information/Suck It And See.pdf[/URL] Both tests can be done in 30 minuets total. Specifically, read/ vacuum gauge test no.10, at the bottom of page "Suck It AND See" [/QUOTE]

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