General control line discussion > Open Forum

L&J Fox 35 with Blue Magic Head

<< < (4/4)

Bill Morell:

--- Quote from: Paul Wescott on May 27, 2022, 11:02:47 AM ---I posted these pics of my L&J Fox 35 on FB.  Every time I post something there it turns up here like no one has ever seen it before, Lol!

Paul W.

That was a good score that day you bought it.

--- End quote ---

Lauri Malila:

--- Quote from: Motorman on May 27, 2022, 04:40:10 PM ---Could you expand on that, what did they do to make the engine better?

Thanks,
Motorman 8)

--- End quote ---

Don't know about Fox, but often just better flatness, roundness and fit can make miracles. Ideally each head should be fitted individually. I use a 5 micron clearance between cylinder and the part of head that goes into cylinder. L

Phil Spillman:
Happy Camper Tower 40's have ball bearings in both front and rear support spots. Pull off the thrust washer and you will see the ball race there. As I recall mine had caged or schiedled ball race in the front, right behind the skinny washer which is just behind the prop drive washer.

Phil Spillman

Brett Buck:

--- Quote from: Motorman on May 27, 2022, 04:40:10 PM ---Could you expand on that, what did they do to make the engine better?

--- End quote ---

   Different, not necessarily better. The claimed benefit of the Stage III and Blue Magic (by people who knew what they were attempting to do and qualified to evaluate the results) was to hold the 4-stroke to slightly higher revs without also increasing the break.

  Like all of the aftermarket Fox heads that I know about, the overall compression is also increased.

     Brett

Navigation

[0] Message Index

[*] Previous page