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Engine basics => Engine set up tips => Topic started by: John KruziK on April 01, 2007, 03:32:49 PM

Title: old os max .35
Post by: John KruziK on April 01, 2007, 03:32:49 PM
Should I use the same fuel in an old 70's os max .35 as a fox .35? Thanks John
Title: Re: old os max .35
Post by: Ralph Wenzel (d) on April 01, 2007, 06:01:43 PM
Quote from: John KruziK on April 01, 2007, 03:32:49 PM
Should I use the same fuel in an old 70's os max .35 as a fox .35? Thanks John

Yes.
Title: Re: old os max .35
Post by: Bill Little on April 01, 2007, 09:49:07 PM
At least 25% all castor, if that's what you're already using in the Fox 35.
Title: Re: old os max .35
Post by: Ken Deboy on April 01, 2007, 10:09:31 PM
I use 29% castor fuel in my Max 35-S and it runs fine. At first I had problems getting it to run through a full tank but switching to an RC style pluf (Fox RC Long) turned it into a nice reliable engine.

cheers,
Ken
Title: Re: old os max .35
Post by: RandySmith on April 02, 2007, 12:46:42 PM
Quote from: John KruziK on April 01, 2007, 03:32:49 PM
Should I use the same fuel in an old 70's os max .35 as a fox .35? Thanks John
http://stunthanger.com/smf/index.php?topic=4037.0

Hi John

Depends on if it is new or used  , and  what fuel it has been run on. I  would suggest reading this 
http://stunthanger.com/smf/index.php?topic=4037.0

I have FOX 35s  and  OS 35S  engines that are mine personally  ran on 25% synth/castor blend  and  are still very good engines that have a very small amount of wear, many 100s of flights ,and  are NOT  burned black with baked-on castor.


Regards
Randy
Title: Re: old os max .35
Post by: Manuel Cortes on April 03, 2007, 05:50:41 AM
Hello all.
Randy, are you refering to lapped pistons or ABC aftermarket units?
Thanks in advance.
Manuel.
Title: Re: old os max .35
Post by: RandySmith on April 03, 2007, 12:58:42 PM
Quote from: Manuel Cortes on April 03, 2007, 05:50:41 AM
Hello all.
Randy, are you refering to lapped pistons or ABC aftermarket units?
Thanks in advance.
Manuel.


Hello

I am refering to the stock  Lapped  iron steel  setup
Do you have  an aftermarket ABC in this engine?

Regards
Randy