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Old 07-27-2006 | 10:46 AM
  #23  
da Rock
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Joined: Oct 2005
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From: Near Pfafftown NC
Default RE: O.S. Max S35 problem

Hey Down Under, can I call ya' Down? You can call me DA.... Most of my friends call me DUH. (wonder why?)

Anyway, I just got back from me cellar......... couldn't find the OS35S parts box. And the sucker ain't exactly small either.

I did find some conrod packages. But they were empty. I've used a few of them in my day. If I remember correctly.............

The first ones had no bearings and no lube holes. If you ever launched with a too-lean needle there was a good chance that your engine would come down junk. You can't pull the throttle stick on your TX back and land with a CL stunter. And ain't nothing worse than having an engine you like level out after takeoff and sag. You knew you had 6-8 minutes (they run longer when they're too lean) of torture to endure. If you had a buddy with a towel, and you trusted him to throw the towel accurately, and you felt lucky that the towel draped plane would come through the landing and...... and...... whatever...........

We often swapped SuperTigre conrods into the 35S. We also drilled lube holes. But I think that for awhile OS sold bushed rods. Don't know that for a fact, but I was looking for my parts because I was positive I still had a couple.

I do remember having more problem with my engines at the top of the rod. Seems I used to have more probability of the wrist pin wallowing in the piston than the low end of the rod ovaling out. But that was many years ago. 30?

I used to buy RedMax directly from the factory..... chuckle.... "factory"..... the factory was in Fred's backyard originally, and then in a little industrial park. He talked me into using a blend of oils. It worked in my OS35S like gangbusters. It was actually better because with LESS castor an often used (and mine were OFTEN used) engine varnished up inside slower. Varnish on the outside kills the cooling, but it also hurts inside. I never wanted to back down to no castor, but less was obviously better. And I saw no real difference in time on parts with a half-and-half blend of oil.

Whatever.... good talking with you. You're always good info and great to discuss with, mate.