Engine Valves

How to keep the Cessna 170 flying and airworthy.

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Robert Eilers
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Post by Robert Eilers »

Phiilips Petroleum Company tested their gas on Route 66.
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

And the car went 66 mph. OK I cheated and looked it up on the internet.
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GAHorn
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Post by GAHorn »

Beware: Wikipedia is accessed by anyone with an internet connection, and may be edited/revised by persons who have neither truth nor fact on their side. Just because you see it on Wikipedia...don't make it so. (And one reason why our webmaster Dale is rightfully reluctant to use "wiki" software at our forums.)
Phillips 66, in an era of 40-octane gasoline, made their marketing debut as a company that guaranteed 66 octane gasoline. (Before the days of TEL refining processes were king-of-the-road. Because Phiillips adopted the U.S. highway banner as their marketing tool, many ill-informed mistakenly believed that U.S. Hwy 66, the main artery between Chicago and the west coast, was their impetus.)
Shortly thereafter, their competitor Union Refining of California announced their 76 octane gasolines I(resulting in the Union-76 brand.) The race was on, until TEL made high-octane gasolines available to any refiner willing to pay the price to add it to their mix. Conoco and Gulf later introduced pumps which consumers could select the TEL level at the delivery point. It didn't last long until three standard grades were adopted in the U.S.

(Like all anecdotes, this one may be simply rumor, but it's the one I believe has the most credibility. My source is Mr. Bud Adams, (former CEO of Philips Petroleum, and owner of the Houston Oilers/Tennessee Titans), whom I've had the pleasure of serving as pilot aboard his Hawker.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

gahorn wrote: My source is Mr. Bud Adams, (former CEO of Philips Petroleum, .....
Well....I guess that source MIGHT trump Wikipedia. :oops:
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Joe Moilanen
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Post by Joe Moilanen »

Holy $%# George,

Ican't believe that you talked about auto gas for that long... :lol:

Joe
c170b53
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Post by c170b53 »

Took my "bad" cylinder off and removed the valves only to find out it was carbon again! I hate learning this way. I'll put it back together this weekend with the valves lapped in to see whether it makes a difference on climb EGT. What I did learn is that you may have carbon build up on a valve that will resist displacement from a hammer blow.
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

Joe Moilanen wrote:Holy $%# George,

Ican't believe that you talked about auto gas for that long... :lol:

Joe
Now Joe that is funny. :lol:
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Bruce Fenstermacher, Past President, TIC170A
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

c170b53 wrote:Took my "bad" cylinder off and removed the valves only to find out it was carbon again! I hate learning this way. I'll put it back together this weekend with the valves lapped in to see whether it makes a difference on climb EGT. What I did learn is that you may have carbon build up on a valve that will resist displacement from a hammer blow.
Yep seen that before. I'm fortunate enough to have a borescope available. Before I'd remove a cylinder I would have dropped the valve into the cylinder an visually inspected the valve and set. Of course once finding the carbon the trick is getting it off.

Or simply reinstalling everything a running it like the Continental SB says to do.
CAUTION - My forum posts may be worth what you paid for them!

Bruce Fenstermacher, Past President, TIC170A
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GAHorn
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Post by GAHorn »

Run it like blu eldr's imaginary girlfriend. Hot, Hard, and Lean.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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