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https://www.forum.cessna170.org/forums/viewtopic.php?t=10630
There is more than one 170 with relief slots in the top of the door to clear the fuel drain.MoonlightVFR wrote:I read all the posts and it was becoming a STRAIN.
Now I will have to measure door clearance to wing tank Drain.
Regards
Bruce Fenstermacher wrote: There is BTW an STC to install a quick drain in the fuel selectors of B models but no other models. A problem with this STC if you have one of the first 18 B models you have the A model fuel valve. A quick drain can still be added but it won't line up with the hole as provided in later B models. When I queried the owner of the STC wondering why he limited the STC to B models he said because they had different fuel selectors. When I pointed out 18 B models had the early valve and would be covered by his STC and therefor all the A models should or could also be included, he didn't care.
No, only the first 18 B models have the A model early fuel selector. David yours should have the later model fuel selector. Still doesn't mean the holes will line up.bagarre wrote:Bruce Fenstermacher wrote: There is BTW an STC to install a quick drain in the fuel selectors of B models but no other models. A problem with this STC if you have one of the first 18 B models you have the A model fuel valve. A quick drain can still be added but it won't line up with the hole as provided in later B models. When I queried the owner of the STC wondering why he limited the STC to B models he said because they had different fuel selectors. When I pointed out 18 B models had the early valve and would be covered by his STC and therefor all the A models should or could also be included, he didn't care.
That explains it!! All this time, I thought my plane was bent or something 'cuz the drain dosent line up with the hole
Because people had to go oversize when they messed up the original threads I'm thinking.BlakeinAlabama wrote: I guess I am wondering why there would be different sizes?
