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Old 03-16-2020, 08:54 AM
Jim Ball Jim Ball is offline
Join Date: Sep 2016
Location: Mobile, Alabama
Posts: 30

Originally Posted by mmcelrea View Post
its 8.3 cr.
Is Bobby Looper still around?
No, Bobby retired to San Antonio TX.
James Ball (J.B.)
Continental Aerospace Technologies
2039 South Broad St.
Mobile, AL 36695
Phone 251 436 8122
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Old 03-16-2020, 09:02 AM
mmcelrea mmcelrea is offline
Join Date: Dec 2008
Location: Northern Ireland
Posts: 16

What would cause the fuel flow to drop during low rpm? When cold its about 5-6gph bu it drops when warm to about 1.
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Old 03-16-2020, 09:33 AM
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Kahuna Kahuna is offline
Join Date: Dec 2004
Location: Gold Hill, NC25
Posts: 2,392

Is there any change in flow & pressure from boost pump on or off?
6A, S8 ,
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Gold Hill, NC25
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Old 03-16-2020, 02:22 PM
SuperCubDriver SuperCubDriver is offline
Join Date: Feb 2011
Location: Germany
Posts: 425

I too have a IO-375 with dual Pmags and the FM-150. Idle was unstable and hard to adjust. I found three issues and things are much better now - still not perfect however:

- the diaphragm in the flow divider had a leak from the very beginning
- the spring in the flow divider was installed incorrectly so that I always had
max flow through it.
- I installed smaller injector nozzles, went from .028 to .022.

Might be worth to have a look into this.
RV-7 flying, IO-375 w. P-Mags, 200RV Prop

RV-8 flying, IO-375, P-Mags, 74RV Prop
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