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  #1  
Old 11-15-2019, 12:46 PM
Stockmanreef Stockmanreef is offline
 
Join Date: Nov 2012
Location: Midland, mi
Posts: 769
Default IO390 Expansion Plug Removal

I was reading another thread about removing the expansion plug before putting on the prop. It was suggested that one could just invert the plug with a piece of steel (rounded edges) and a hammer. Does one need to drill a hole in the plug first?

What is the easiest method of removal?

thanks
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Midland, MI
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RV-14a (serial number 140073)
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  #2  
Old 11-15-2019, 01:40 PM
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bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,333
Default

Slowly drill a hole and insert a screwdriver, turn, pull or pry. Nothing stressful, it comes right off. Just clean any debris out before installing the prop. Also, don't use the edges for leverage for your screwdriver, you don't want it damaged.
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Last edited by bkervaski : 11-15-2019 at 01:43 PM.
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  #3  
Old 11-15-2019, 02:05 PM
MED MED is offline
 
Join Date: Jul 2015
Location: Aiken, SC
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A slide hammer worked really well.
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  #4  
Old 11-15-2019, 02:33 PM
twisted-wrench twisted-wrench is offline
 
Join Date: May 2008
Location: Eagles Nest, T56
Posts: 68
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I just did this. I used a ball peen hammer. I put the rounded end on the plug and smacked the s**t out of the ball peen with another BFH. The plug compressed and I removed it with a magnet. Easy-peasy! and no shavings to worry about.
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  #5  
Old 11-15-2019, 02:51 PM
mturnerb mturnerb is offline
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 1,140
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Quote:
Originally Posted by twisted-wrench View Post
I just did this. I used a ball peen hammer. I put the rounded end on the plug and smacked the s**t out of the ball peen with another BFH. The plug compressed and I removed it with a magnet. Easy-peasy! and no shavings to worry about.
Does BFH mean what I think it does???
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  #6  
Old 11-15-2019, 09:56 PM
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DakotaHawk DakotaHawk is offline
 
Join Date: Oct 2008
Location: Arlington, WA
Posts: 797
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Quote:
Originally Posted by mturnerb View Post
Does BFH mean what I think it does???
I keep my BFH right next to my BFW and my BFSD. There may also by a BFG somewhere nearby.
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Scott "Grumpy" Stewart
RV-7 N957RV (First Flight on Dec 18, 2009)
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#866 on the Van's RV-7 hobbs
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Arlington, WA
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  #7  
Old 11-16-2019, 10:35 AM
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kbalch kbalch is offline
 
Join Date: Jan 2005
Location: Clermont, FL
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Quote:
Originally Posted by DakotaHawk View Post
I keep my BFH right next to my BFW and my BFSD. There may also by a BFG somewhere nearby.
Exactly!! My BF collection lives together as they're all too large to occupy the usual drawers with their smaller brethren.

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RV-8 N118KB (#81125) - Sold
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Std. kit begun 5/18 - Stick grip wiring, wheel pants, gear leg fairings, and misc. other pre-airport finish-up tasks
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  #8  
Old 11-16-2019, 03:07 PM
cajunwings cajunwings is offline
 
Join Date: Jun 2007
Location: new iberia la
Posts: 658
Default Crank plug

Used the ball peen hammer method to remove/install for years, but the last 50 Iíve taken out have been with a slide hammer. I know it doesnít hurt a thing, but like not having to hammer the plug to remove. Metal chips/debris not a issue. Doesnít usually happen, but If a chip or 2 gets left in the crank bore during plug removal they are easily reached and removed.

Don Broussard A&P, IA, ATP
RV9 Rebuild in Progress
57 Pacer
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  #9  
Old 11-16-2019, 05:08 PM
dmattmul dmattmul is offline
 
Join Date: Dec 2015
Location: Spring Hill, FL
Posts: 76
Default Ball Pean Hammer Works

It's a little scary (hitting a brand new engine with a BPH) but works well and no metal chips to worry about.
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