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Old 11-14-2019, 08:31 AM
ron sterba ron sterba is offline
 
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Question Torque a oil filter on a IO 320 D1A RV9A

I changed my oil filter the last time.(since bought the wrench to take it off). What’s a good way to torque the filter to 16 lbs in that precarious location being blocked by the upper cowling fastener strip. Can’t get my torque wrench in there! Your idea would be thoughtful. Much appreciated.

Ron RV9A
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Old 11-14-2019, 08:58 AM
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Ironflight Ironflight is offline
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There used to be an alternate “torquing” method printed on Tempest filters that said “3/4 of a turn after the gasket touches”. That has always worked well for me - no leaks and easy to remove. I torque with a wrench when able, but use the alternate method when I can't.
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Old 11-14-2019, 09:29 AM
Electrogunner Electrogunner is offline
 
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What Paul said. I've always used the 3/4-1 turn past contact on cars as well as AC. I've never used a wrench to put filters on, just my hands. Sometimes I need to use a wrench to get back off though. I do not advocate going against manufacturer directions, just making a suggestion.
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Old 11-14-2019, 09:49 AM
tthrew tthrew is offline
 
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Default Oil filter torque wrench AA472

I have an oil filter torque wrench - it is compact and will fit between the firewall and filter (it is a tight fit though).
https://www.aircraftspruce.com/catal...ages/AA472.php
But I have found using the 3/4 turn after hand tight to work about the same. I lube the gasket with DC-4 as recommended by Champion.
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Old 11-14-2019, 10:45 AM
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rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by tthrew View Post
I have an oil filter torque wrench - it is compact and will fit between the firewall and filter (it is a tight fit though).
https://www.aircraftspruce.com/catal...ages/AA472.php
But I have found using the 3/4 turn after hand tight to work about the same. I lube the gasket with DC-4 as recommended by Champion.
I use 3/4 turn as well when I have no access to a torque wrench, but I caution using 3/4 past "hand tight". 3/4 turn past first seal contact is a much better description in my opinion.
Hand tight to me means tightened as far as I can by hand. That is a very different amount depending on whose hand is doing the tightening.
It could result in a filter that is turned 1 1/2 turns past the point of seal contact which will be very difficult to get off when it comes time.
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Old 11-14-2019, 12:21 PM
tthrew tthrew is offline
 
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Scott - I agree - ?seal contact?, not ? hand tight? is a better description. Than you for correcting my comment.
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Old 11-14-2019, 12:23 PM
ron sterba ron sterba is offline
 
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Thanks on the technical, l like the thought of a simple 3/4 turn. Tim you mentioned DC-4,what is that lubricant? I used new oil from the quarts going in, I hope that’s ok. Iam going to have a oil analysis done, should I have the filter done too? I bought a oil filter cutter and plan to open it today and send the filter. My IO 320 D1A has 68 hours on it. (RV9A HDX grandma grandpa plane). I also use CamGuard additive. I got roller rockers and was told it was a great protector for the rollers. On the torque wrench the Spruce reviews are barely 3 stars and a hit and miss on the four star. Thanks guys I’ll get a twisting!!!
Ron
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Old 11-14-2019, 02:50 PM
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Plummit Plummit is offline
 
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Quote:
Originally Posted by ron sterba View Post
Thanks on the technical, l like the thought of a simple 3/4 turn. Tim you mentioned DC-4,what is that lubricant?
Dow Corning #4 is an electrical insulating silicone that will make the filter easier to remove. A life time supply can be had in one tube:
https://www.amazon.com/Dow-Corning-E...3768167&sr=8-4

Regards

-Marc
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Old 11-14-2019, 03:25 PM
gasman gasman is offline
 
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Quote:
Originally Posted by ron sterba View Post
Thanks on the technical, l like the thought of a simple 3/4 turn. Tim you mentioned DC-4,what is that lubricant? I used new oil from the quarts going in, I hope that’s ok. Iam going to have a oil analysis done, should I have the filter done too? I bought a oil filter cutter and plan to open it today and send the filter. My IO 320 D1A has 68 hours on it. (RV9A HDX grandma grandpa plane). I also use CamGuard additive. I got roller rockers and was told it was a great protector for the rollers. On the torque wrench the Spruce reviews are barely 3 stars and a hit and miss on the four star. Thanks guys I’ll get a twisting!!!
Ron
In the 40 years of owning and operating lycomings, all I have ever used to lube the filter is the oil from the quarts going in, and 3/4 turn past contact and have NEVER HAD a problem with a filter leak or removal.

If you feel the need to use SOMETHING SPECIAL to install the filter, here....... https://www.acehardware.com/departme...grease/4768503 is a product for under $5 that will cover you for many years.
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Last edited by gasman : 11-14-2019 at 03:34 PM.
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Old 11-14-2019, 07:48 PM
tthrew tthrew is offline
 
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Default DC-4

DC-4 is Dow Corning #4, as Plummit explained. Aircraft Spruce sells it for $18 (plus shipping).

As far as using DC-4 vs oil on lubricating the oil filter gasket -
I'm an old farm boy, and all I ever used on my ag equipment spin-on filter gaskets was oil. I too, never had a problem with the filter leaking or sticking using oil. However, on the side the Champion aviation oil filter I use, it states to use (first choice) DC-4 to lube the gasket. Oil is the second choice.

Lycoming also recommends DC-4 on engines having the 15047 oil filter adapter

https://www.lycoming.com/content/tip...pin-oil-filter

So, this is why I use DC-4 on my oil filter gasket. But, As Gasman stated - he's been using oil for years - so don't worry.
Yes - I cut my filters open and inspect. EAA has a video on their website on how to do it. Below is a link to a pdf from Blackstone on filter inspection.

https://www.blackstone-labs.com/wp-c...Newsletter.pdf

Hope this info is helpful
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