| [ Total Views: 965 | Total Replies: 11 | Thread Id: 95067 ] |
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 karmannghia60
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| posted on January 29th, 2012 at 07:18 AM |
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What size thread on the oil pressure switch?
Just need to know what is the thread size for the oil pressure switch on a T1 engine
Thanks
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68AutoBug
A.k.a.: Lee Noonan
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 posted on January 29th, 2012 at 07:26 AM |
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| Quote: | Originally
posted by karmannghia60
Just need to know what is the thread size for the oil pressure switch on a T1 engine
Thanks
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from memory its 1/8th tapered pipe thread [ 1/8"inch TPT]
that is why You use teflon tape or pipe sealant on the thread
and only do it up till it doesn't leak...
keep screwing in and the block will crack.. YIKES
You can buy fittings to screw into it... its a common thread..
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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 matberry
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| posted on January 29th, 2012 at 07:27 AM |
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10 x 1mm
WTF would 1/8 be doing on a VW?
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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68AutoBug
A.k.a.: Lee Noonan
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| posted on January 29th, 2012 at 07:34 AM |
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it was before the war Mat..
it is tapered though??
Isn't it... senders look tapered
the extension I have is 10mm x1 mm... [now remember]
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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matberry
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| posted on January 29th, 2012 at 07:48 AM |
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| Quote: | Originally
posted by 68AutoBug
it was before the war Mat..
it is tapered though??
LEE
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mmmm, don't think VW was imperial pre WW2 
The senders are a tapered 10 x 1, but I'm not so sure the case is tapered.
1/8 BSP is very close but will damage the thread in the case if used.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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HappyDaze
A.k.a.: Greg Mackie
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| posted on January 29th, 2012 at 11:22 AM |
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Definitely M10x1.0, as Matt says. DON'T use 1/8 gas [BSP], unless you have a spare crank-case.
I'd rather wear a Beetle out by racing it than by polishing it!
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Joel
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| posted on January 29th, 2012 at 11:25 AM |
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Ugh how many times have I seen that....
People go down to autobahn, grab an oil pressure gauge, screw the sender in........craaaaack 
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amazeer
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| posted on February 1st, 2012 at 10:55 PM |
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and threads are tapered so you DONT use tape.
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beetleboyjeff
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| posted on February 2nd, 2012 at 09:18 AM |
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| Quote: | Originally
posted by amazeer
and threads are tapered so you DONT use tape.
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That is what I have been told as well. They reckon it is too easy to crack the case if you put tape on it, and as you said, because it is tapered, it
is not needed.
From your ole' mate Jeff
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lou0060
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| posted on February 3rd, 2012 at 07:33 PM |
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agree thread type should be M10x1.0 pitch but even if it is tapered it won't guarantee it wont leak. Thread tape is not the best option but I would
definitely use a good thread sealant such as Permatex or Loctite. Remember that the oil is hot and under pressure so it will weep through threads
even if they are tapered. The only way to eliminate leaks is to use a good quality thread sealant.
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HappyDaze
A.k.a.: Greg Mackie
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| posted on February 3rd, 2012 at 07:43 PM |
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Loctite make really good teflon thread sealant, that is resistant to nearly everything. Don't use retainers though.
I'd rather wear a Beetle out by racing it than by polishing it!
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zjm
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| posted on March 20th, 2012 at 02:15 PM |
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I tape mine but then again my cars dont leak oil so maybe I'm doing it wrong I also cover my push rod tube orings in aviation cement it doesnt seem
to matter if theyre German ,mexican ,brazilian or whatever they still dont leak great stuff
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