Engine Valves
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
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- Bruce Fenstermacher
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- GAHorn
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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.
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.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

- Bruce Fenstermacher
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- Joe Moilanen
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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.
- Bruce Fenstermacher
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- Bruce Fenstermacher
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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.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.
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
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
- GAHorn
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