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Locate original Part Number, Illustration
Posted: Sat Feb 08, 2014 3:13 pm
by MoonlightVFR
I am looking in the wrong place
Subject is original air filter part number and illustration for 1954 Cessna 170B w Cont 0300 engine.
Looking in IPC dated Sept 1, 1956. Nothing
I want to see original factory illustration and part numbers for air filter and the fastener that hold air filter to air box.
Aircraft currently has the Brackett air filter installed.
What is the right place to research part number?
Re: Locate original Part Number, Illustration
Posted: Sun Feb 09, 2014 4:39 am
by n2582d
From the TCM IPC:
Air Filter.jpg
Parts list.jpg
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 12:44 am
by n2582d
What a stud! Aircraft Spruce wants over $300 for four of those camlock studs and cross pins.
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 1:34 am
by sfarringer
I use the Donaldson P10-7172.
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 2:36 am
by n2582d
I've always used Brackett filters. Donaldson makes a good sales pitch
here though.
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 5:35 am
by DaveF
n2582d wrote:I've always used Brackett filters. Donaldson makes a good sales pitch
here though.
For the dirt argument, maybe, if you live in a dusty environment, and depending on what they mean by "life of the filter". Not much of an argument based on pressure drop. An O-300 turning 2500 rpm draws about 200 cfm, and according to the plot the Donaldson filter has about 1" H2O less pressure drop than the Brackett. One inch of water column is 0.2%, or 0.08" Hg. Not too compelling.
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 5:20 pm
by GAHorn
The problem most folks face when using Brackett filters is.... they fail to squeeze out the excess wettant before installation.
Place the foam filter between two stacks of paper towels, and (this is the tricky part), ... grab the wife's pastry-roller / rolling pin and squeeze out all that sticky wettant before installation. (I guess a 3" pipe would also work, or maybe a rattlecan paint can, etc.)
Do not simply remove the filter from the plastic bag and install it! Get rid of all that excess wettant.
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 8:13 pm
by DaveF
"Wettant", is that what it's called? I thought it was called "goo".
Re: Locate original Part Number, Illustration
Posted: Mon Feb 10, 2014 11:56 pm
by lowNslow
We switched to the Donaldson filter for our glider club towplane and it is working much better. The problem with the Bracketts on a dirt strip is they clog up very fast as they have far less surface area then a pleated filter. I still use a Brackett on my 170 as other then the dirt glider field I am on paved runways.