Blocking the oil filter adapter bypass
Thread Starter
Race Director
Joined: Jun 2004
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From: WI
Blocking the oil filter adapter bypass
A picture of the stock oil filter bypass, two 7/16" bolts.
Two pictures of the adapter removed:
Junk that can accumulate in there if it's not disassembled to be cleaned:
To remove the bypass parts simply pry up the top disc, be careful as the spring can fly out. Tap and install plug:
Use a Fram HP4 or some type of racing filter. The HP4 has a bypass but it's rated at higher PSI than the weak stock bypass that was just blocked. Also the HP4 has a screen to block debris from bypassing.
Two pictures of the adapter removed:
Junk that can accumulate in there if it's not disassembled to be cleaned:
To remove the bypass parts simply pry up the top disc, be careful as the spring can fly out. Tap and install plug:
Use a Fram HP4 or some type of racing filter. The HP4 has a bypass but it's rated at higher PSI than the weak stock bypass that was just blocked. Also the HP4 has a screen to block debris from bypassing.
Drifting
Joined: Dec 2005
Posts: 1,313
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From: High Ridge Missouri
Good idea, did the same thing a couple years ago when I built my engine. See the 5th pic in link, notice that the metal is thin that you are putting the plug into so you have minimal surface for the thread locker to adhere to. You'll notice in the pic of mine the light staking marks around the plug in addition to the thread locker to ensure the plug can't move.
http://forums.corvetteforum.com/1570196259-post27.html
http://forums.corvetteforum.com/1570196259-post27.html
Team Owner
Joined: Jul 2004
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From: Hartford WI
Pic 1 and pic 5. The bypass that has been blocked off is on different sides or am I imagining things? In pic 1, the bypass hole is to the right of the bolt. In Pic 5, the bypass is to the left of the bolt.
Last edited by aklim; Dec 6, 2010 at 09:00 PM.
Safety Car
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From: moraga ca
Team Owner
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From: Hartford WI
SH1TTTTT!! Alcohol and tapping don't mix. Well guess I will get the billet unit from Summit then.
http://www.summitracing.com/parts/MOR-23775/
http://www.summitracing.com/parts/MOR-23775/
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What size tap/plug did you guys use?
Thread Starter
Race Director
Joined: Jun 2004
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From: WI
I believe the hole is the right size for 1/4" NPT but my brother borrowed that one so I used a 1/2" tap and a block drain plug (had to enlarge the hole just a little). As mentioned above there really isn't a whole lot of surface area for thread so use a fine thread tap and plug if you can.
Le Mans Master
Joined: Oct 2007
Posts: 9,687
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From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
I believe the hole is the right size for 1/4" NPT but my brother borrowed that one so I used a 1/2" tap and a block drain plug (had to enlarge the hole just a little). As mentioned above there really isn't a whole lot of surface area for thread so use a fine thread tap and plug if you can.
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
SH1TTTTT!! Alcohol and tapping don't mix. Well guess I will get the billet unit from Summit then.
http://www.summitracing.com/parts/MOR-23775/
http://www.summitracing.com/parts/MOR-23775/
Pro
Joined: Jun 2005
Posts: 581
Likes: 60
From: USA
i did the same thing for my motors, 'cept i put the pipe plug in from the other side (block-side instead of filter-side). and i tapped it only sufficiently so that the plug doesn't stick through too much towards the filter.
the first time i did this, the plug rubbed against the filter, well, trash that previously-perfectly-good-adapter... lesson learned.
i lock the plug in place with J-B weld epoxy. i've done this for at least a half-dozen motors to date.
the first time i did this, the plug rubbed against the filter, well, trash that previously-perfectly-good-adapter... lesson learned.
i lock the plug in place with J-B weld epoxy. i've done this for at least a half-dozen motors to date.
Team Owner
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From: Hartford WI
Race Director
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From: moraga ca
Or the guy who revs the motor before the oil has warmed up. More than one filter has burst because of this.
