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Re: [FlyRotary] Re: FW: Sad story
I found the problem with my
turbo.
While reinstalling the turbo I decided that the feed
line may be too small. The hose recommended by my local Mazda guru was
#10 size which is about
1/8 ID. All the input I'm getting now says this hose needs to be 1/4 ID. Maybe
the local guy was thinking
about typical sporadic road use rather than the sustained usage I'll get in
airplane use. When it came
time to remove the old hose I noticed that it went under the
alternator, and seemed
stuck. The only way I could get it out was to release the alternator tension
adjustment and lift the alternator
up. The hose had been trapped between the alternator and the top of the engine.
There HAD been enough clearance, but the belt tension had pulled the alternator
downwards and crimped the feed line. I guess the tension bolt hadn't been
tight enough, or it needs
some friction washers. Blowing through the hose it was easy to feel the
restriction caused by the crimp.
Excellent! I love it when you find a definitive cause like that.
There's a picture of the crimped hose in my web site,
chapter 29 for anyone who's interested.
John Slade (Onwards and
upwards....)
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