RCU Forums - View Single Post - Engine gets more pinch as it wears in??
Old 03-11-2009 | 10:43 AM
  #14  
proptop's Avatar
proptop
My Feedback: (8)
 
Joined: Oct 2002
Posts: 7,036
Likes: 0
Received 3 Likes on 3 Posts
From: Rome, NY
Default RE: Engine gets more pinch as it wears in??

ORIGINAL: MJD


ORIGINAL: veedub

Does a glow engine get tighter as it gets run in? i have a .28 dynamite engine in my savage and it never had alot of pinch, if i was to take the head off i could spin it over by hand with my wand starter . after letting it idle through most of a tank today. the engine got way tight and now if i take the head off and try turning it it pushes the sleeve a quarter of the way out of the engine. i figured the pinch would lessen the more it was run.

Why would you idle a tank of fuel through an engine - is this a car thing? I'd never do that to an ABC aircraft engine - what is the point of doing so?

MJD

Yep...some R/C car engine and RTR vehicle manuf. recommend idling a tank or two first for "break-in"...Not recommended in my book, but...

veedub...have you found this forum yet?
http://www.rcuniverse.com/forum/m_5517128/tm.htm

You should find some interesting reading there...good luck[8D]

P.S. it's possable that when you re-torqued the head bolts that either they were torqued unevenly or too much?