Gascolator Drain

How to keep the Cessna 170 flying and airworthy.

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jmbrwn
Posts: 53
Joined: Sat Jun 12, 2004 12:50 pm

Gascolator Drain

Post by jmbrwn »

I apologize for asking guys, but I did a search and couldn't find the answer...also not in parts catalog...what size is gascolator drain valve. I think mine is 3/8" NPT...it is the glass bowl type. Mine leaks a little...just enough to be irritating. Want to replace it, or the o-ring, whichever is recommended.

Thanks in advance.
Jim Brown
N9753A
'49 C170A
N170BP
Posts: 552
Joined: Mon Jul 22, 2002 7:24 pm

Post by N170BP »

Try disassembling it and replacing the o-ring 1st (cheap fix).
Worked on mine....
Bela P. Havasreti
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'54 C-180
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Roesbery
Posts: 302
Joined: Tue Apr 23, 2002 4:34 am

Post by Roesbery »

Smear a light coating of ' Fuel Lube ' on all the gaskets and threads.
zero.one.victor
Posts: 2271
Joined: Tue Apr 23, 2002 12:11 am

Post by zero.one.victor »

My ragwing has a total of 4 gas drains, two are CAV-110's ( 1/8" NPT) & two are CAV-170's (7/16"-20). Can't remember which is at the gascolator. When I bought the plane, I had some drain leaks. When I went to replace the o-rings, I found the drains themselves badly corroded. I replaced all 4 drains, & kept the old ones (with new o-rings) to carry as spares. They're only about 10 or 12 bucks apiece for new ones.

Eric
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GAHorn
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Post by GAHorn »

Curtis,..it is NOT 3/8 NPT...it is 1/8"NPT. (It matches up to an AN-910-1D nipple.)
'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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