How does the engine look?
Do you have any guesses on why did it caught fire?
Paul
No question at all about why it caught fire -- those damn plastic ends on
the MSD fuel pumps snapped off & fuel was being hosed into the cowling
post
crash. The hottest part of the fire was right at the fuel pumps.
Terry was
trying to go around when he lost it - thus both pumps were on and
running at
impact.
I really think those MSD fuel pumps should not be used by anyone
because of
the plastic elements. As you'll remember, I dropped one & the plastic
shattered on that one too.
Rotor 1 is shot. The p-port got torn loose and shoved into the rotor
chamber while the engine was still turning. I expect to find the apex
seals
shattered & the chamber shot.
I cant get the damn e-shaft nut off so it will b a while before I get
around
to tearing it down.
mrs
I don't know why we have to crash to find out stuff like this fuel pump.
I was advocating these things until this happened. I sent a copy of this
email to MSD.
http://www.jegs.com/i/JEGS/555/15913/10002/-1?parentProductId=937089
This P-port was one of our early epoxy bonded in versions. That was the
first and last one done like that. New ones are stainless steel welded
in.
It will take a direct axial heavy impact to shove one of those into the
rotor housing.
Paul Lamar
Here's an all metal alternative
http://www.summitracing.com/parts/HLY-12-927/?rtype=10
Bob Mears
I don't think that is high pressure EFI. I think that is
throttle body injection at 15 psi.
http://www.holley.com/12-920.asp
What you are looking for is a true roller vane pump that will lift
a head of fuel. Important for low wing airplanes.
Paul Lamar
The Bosch Cis efi fuel pumps are all steel with threaded bosses for the
fuel lines. They are well tested millions made. Some even have a check
valve in the outlet. Roller vane.
Very high quality. I mentioned this on this web site many years ago.
No one paid any attention.
chris smale
Chris,
You are correct but I didn't even know you had a website. Yes
Bosch has an excellent design pump. It is very pricey and price
tends to flavor the choices of this discussion group. Don't get
me wrong I enjoy a simple inexpensive proven design but many of
the ideas offered here still have to be proven. Call me
unreasonable, but buying good quality parts and spending the
time to find and test each one of them SAVES money, time and
perhaps one's life in the long run. Verify all information with
multiple sources and preferably with people already using such
devices. In my opinion fuels pumps belong in the fuel tank,
either the mains or collecting header tank.
Doug in Japan
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