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12-11-2018, 07:53 PM
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#1 |
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Senior Member
 
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,118
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Does the dipstick tube take an O-ring?
When I removed the dipstick tube I was surprised to see there wasn't an O-ring. But I ended up finding one when I pulled the oil pan. It was on the rim inside the oil pan tube. It's possible one was added when the engine was rebuilt long ago.
Word is dipstick tubes don't take an O-ring because the tube is press fit and they're not necessary? I asked a transmission shop for an O-ring, and they also say the tube doesn't use one. So my question is, does the original oil dipstick tube use an O-ring or not? Thank you
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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12-11-2018, 08:05 PM
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#2 |
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Registered User
Join Date: Jul 2012
Location: Marshall, NC....heart of the Appalachians.....aka, Gods country!!
Posts: 537
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Re: Does the dipstick tube take an O-ring?
never seen or used an o-ring on sbc or bbc such as yours....but have used a small dab of sealer on the tube at the time of install to prevent any seepage.
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12-11-2018, 09:02 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: Orland Park Il
Posts: 2,041
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Re: Does the dipstick tube take an O-ring?
+1 I’ve always put a small amount of black RTV on them.
__________________
68 GMC C3500 Longhorn DRW 67 Chevy C10 LWB 90 Mustang Gt 90 Mustang Notchback |
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12-11-2018, 09:24 PM
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#4 |
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Senior Member
Join Date: Oct 2009
Location: Godley, TX
Posts: 17,933
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Re: Does the dipstick tube take an O-ring?
yep, no-o-ring. It's a press fit, that's all. But RTV not a bad idea for insurance. I don't think the factory used any. But then again, these engines were exactly known for being leak-resistant ...
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12-11-2018, 11:09 PM
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#5 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,209
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Re: Does the dipstick tube take an O-ring?
It is not a press fit on my 402. It fits loosely but it does have a bracket welded on with a bolt hole to mount to the exhaust manifold so it cannot come out. I put a small o-ring on it just because.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Coming soon: EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 |
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12-11-2018, 11:22 PM
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#6 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 19,980
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Re: Does the dipstick tube take an O-ring?
I tried putting an o-ring on one, was unsuccessful even with the thinnest one I could find.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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12-12-2018, 07:56 AM
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#7 |
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Registered User
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,450
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Re: Does the dipstick tube take an O-ring?
No O-ring. I've had the loose complete pull out type too. A light hit with a hammer on the upper area before the seat takes care of that problem.
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12-12-2018, 11:10 AM
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#8 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Does the dipstick tube take an O-ring?
That picture looks like a Moroso pan or similar, not a stock pan. No o-ring that I know of on the stock setup, but probably on some of the aftermarket...
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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12-12-2018, 11:37 AM
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#9 |
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Registered User
Join Date: Nov 2007
Location: Indianapolis
Posts: 1,160
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Re: Does the dipstick tube take an O-ring?
no O ring but you can use RTV snot
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12-12-2018, 12:20 PM
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#10 |
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Registered User
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,450
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Re: Does the dipstick tube take an O-ring?
What engine do you have?
My '70 Blazer has it's original 255hp 350, and the dipstick tube is bossed into the block on head mating surface |
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12-12-2018, 12:22 PM
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#11 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,209
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Re: Does the dipstick tube take an O-ring?
Big blocks have the dipstick coming out of the right side of the oil pan.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Coming soon: EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 |
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12-12-2018, 12:24 PM
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#12 |
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Registered User
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,450
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Re: Does the dipstick tube take an O-ring?
Thanks, never owned a BB, still learnin everyday!
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12-12-2018, 04:05 PM
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#13 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Does the dipstick tube take an O-ring?
No O-rings that I have ever seen on the oil stick. Transmissions do though!
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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12-12-2018, 06:12 PM
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#14 |
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Registered User
Join Date: Feb 2016
Location: Trenton,Ontario & South Carolina
Posts: 755
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Re: Does the dipstick tube take an O-ring?
Every big block I have had did use a o- ring,always put on on and a dab of silicone
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12-13-2018, 10:09 AM
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#15 |
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Senior Member
Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,323
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Re: Does the dipstick tube take an O-ring?
FWIW my “how to rebuild big block chevy engines” book says there is an o-ring.
__________________
I live in California, but identify as a Texan  "If a job's worth doing, it's worth doing well" Project "Little Sister" (70 c10 blue original paint refresh) Project "C10 Fever" (68 factory black 396 swb) Project "Blue Bomb" (70 c30 blue original paint refresh) Project "Vitamin C" (71 c10 orange original paint refresh) |
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12-13-2018, 09:16 PM
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#16 | |||
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,118
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Re: Does the dipstick tube take an O-ring?
Quote:
Quote:
Quote:
 Seemed to work with an O-ring, I don't recall a leak. I'll see if I can match it up and/or do as suggested above and seal it. Edit: This might be it. Part number 274244.https://www.yearone.com/Product/1964...l-camino/8758n Per the part's book, 274244 was used on all engines.......Don't shoot the messenger(s), miles may vary I ordered one off Ebay and will advise of fit.EDIT: I got the 274244 O-ring. Looked right, fit on the tube right, too big for the oil pan tube. The old one could be just dried up, but I believe it's plastic instead of rubber.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 Last edited by 71CHEVYSHORTBED402; 12-19-2018 at 10:53 PM. |
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12-14-2018, 12:43 AM
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#17 | |
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Registered User
Join Date: Feb 2016
Location: Hebron
Posts: 1,123
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Re: Does the dipstick tube take an O-ring?
Quote:
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RUBBER DOWN AND HIT THE ROAD!!!1940 Ford Dlx Coupe 1969 Mach1 |
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12-14-2018, 09:53 AM
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#18 |
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Registered User
Join Date: Feb 2016
Location: Trenton,Ontario & South Carolina
Posts: 755
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Re: Does the dipstick tube take an O-ring?
Lets stop all the B.S. Big Block Chevys take a O ring, small blocks Do not,End of it!
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12-14-2018, 12:25 PM
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#19 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Does the dipstick tube take an O-ring?
Now is it a square-cut o-ring or traditional round type?
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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12-14-2018, 12:45 PM
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#20 |
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Registered User
Join Date: Feb 2016
Location: Trenton,Ontario & South Carolina
Posts: 755
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Re: Does the dipstick tube take an O-ring?
It is a round style O-ring
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12-15-2018, 01:12 AM
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#21 | |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,118
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Re: Does the dipstick tube take an O-ring?
Quote:
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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12-15-2018, 02:11 AM
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#22 |
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Senior Member
Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,323
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Re: Does the dipstick tube take an O-ring?
Is that possibly a straight tube that someone bent? Mine has two clean bends (not 100% sure of what it originally came from).
__________________
I live in California, but identify as a Texan "If a job's worth doing, it's worth doing well" Project "Little Sister" (70 c10 blue original paint refresh) Project "C10 Fever" (68 factory black 396 swb) Project "Blue Bomb" (70 c30 blue original paint refresh) Project "Vitamin C" (71 c10 orange original paint refresh) |
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12-15-2018, 10:08 AM
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#23 |
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Registered User
Join Date: Feb 2016
Location: Trenton,Ontario & South Carolina
Posts: 755
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Re: Does the dipstick tube take an O-ring?
Some were bent like that mainly to miss the A/C unit and non A/C were straight.
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12-15-2018, 02:01 PM
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#24 | |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,118
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Re: Does the dipstick tube take an O-ring?
Quote:
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 Last edited by 71CHEVYSHORTBED402; 12-15-2018 at 05:31 PM. |
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12-18-2018, 08:51 PM
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#25 | |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,118
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Re: Does the dipstick tube take an O-ring?
Quote:
The old one may just be dried up, but I believe it's plastic instead of rubber.
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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