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Old 07-08-2019, 07:23 PM   #1
ron350
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Turbo 350 dipstick o-ring size?

Turbo 350 dipstick o-ring size?

Can any one give me the o-ring size for a Turbo 350 dipstick tube?
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Old 07-09-2019, 09:30 AM   #2
Big Blue
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Re: Turbo 350 dipstick o-ring size?

I to would like to know this information.
John
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STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now.
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Old 07-09-2019, 11:13 AM   #3
ron350
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Re: Turbo 350 dipstick o-ring size?

I would be grateful for a brand name part # but I was hoping for a – o ring part number.

For example the o-ring for the small spedo housing is a –115 and I think the modulator o-ring is a –115.
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Old 07-09-2019, 03:33 PM   #4
sweetk30
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Re: Turbo 350 dipstick o-ring size?

if running dip stick tube with o-ring style flare put rtv around it to the case after its installed in the trans . make sure its clean and dry or goo and oils . let cure up good and then fill . there known for leaking even with a good o-ring on them .
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Old 07-09-2019, 05:14 PM   #5
Jake Wade
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Re: Turbo 350 dipstick o-ring size?

ATP part # SO33
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Old 07-09-2019, 06:34 PM   #6
ron350
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Re: Turbo 350 dipstick o-ring size?

Thanks Sweetk30 I will seal dipstick tube on the outside of the case like you say.

Thanks Jake Wade I will check out the ATP o-ring.
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Old 07-12-2019, 08:23 PM   #7
ron350
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Re: Turbo 350 dipstick o-ring size?

OK the o-ring for the dipstick tube, modulator valve and the small spedo housing are the same size.
Rockauto sells these under ATP SO33 and Pioneer #76200110.
.
The Parker o-ring book lists these as size –115 which measures 11/16” ID x 7/8” OD x 3/32” diameter or .674” ID x .103” diameter.
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