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Re: Sorta good news?

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Author  [Modern View]

06-11-2014 02:58:13

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Tony: Mine only had one spring per valve. Broke one exhaust spring which is why I had to replace it. Got spring through MF dealer at Springbrook, Ont. Did not find valve rotator listed in parts book but did find it in the engine. With John(UK) assistance discovered that some engines were equipped with them mainly for testing for the upcoming (at the time) 35 engine. The serial number suffix indicates if they were installed. I had no knowledge of them until I went to repair mine and found the small springs and balls on top of the head. Sure glad they did not fall down the push rod side. Got all springs and balls and put it back together. Took photos and measurements of the pieces and sent to John(UK). That's about all I know about them.

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Jason S.

06-11-2014 05:57:15

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 Re: Sorta good news? in reply to John(Ont), 06-11-2014 02:58:13  
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In my parts book the roto cap and spring is not illustrated but it is in the parts numbers. It starts at #37.

181851M91 1 Rotocap Kit, Exhaust Valve 181849M1 4 Spring, Valve 181850M91 4 Rotocap Assembly 825483M91 1 (C) Decarbonizing Set (85MM) (C) - Order (1) 825003M1, (2) 825194M2, (1) 825836M1 And (1) 829029M1.
Personally I wouldn't mess with the rotocaps.

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