> I need to know if the bolts that attach the engine mount to the
     > lower
     > corners of the firewall can inserted from the back with nuts on
     > the
     > engine side? thanks, Jerry
     >
     > Jerry
     > I don't know, off hand. I have my bolts installed with the
     > heads on the
     > engine side. I suppose you could reverse them, I don't recall
     > if they
     > are nyloc nuts, which is a no-no in the engine compartment. How
     > far
     > along are you?
     >
     > Brian Trubee
     >
     >
     > I think that you can get all metal lock nuts. I don't think there
     > is any
     > practical reason that you couldn't have the bolts inserted from the
     > cockpit side. I am only speculating that it wouldn't be a good
    idea to
     > have the nyloc nuts exposed to the engine compartment heat. But
     > even if
     > they were, you could probably use them and put some sort of
    insulation
     > on them if you were concerned about the heat. I beleive that there
     > is a
     > regulation out there that prohibits nyloc nuts in an engine
     > compartment.
     > I am at work, when I get home tomorrow, I'll try to find and cite
the
     > regulation.
     >
     > Brian Trubee

    Brian, I was not worried about heat affecting the nut, That can be
    handled with castellated nuts and cotter keys or with metel lock nuts
    as you have pointed out. I was seeking assurance that there is no
    structure behind the firewall that would prevent inserting the
    bolts. 2.5 inches clearance is needed. Jerry

Nope, there's nothing structurally that would prevent you from putting
the bolts in from the cockpit side.

Brian Trubee

The important point is to make sure that the interface between the 2
joined surfaces is on the unthreaded shank of the bolt. If on the
threaded portion a possible fatigue situation exists.

Chris Smale


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.