 Oil Pressure Sending Unit, Crush washer? |
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| Allan |
 Feb 26 2005, 10:46 PM
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#1
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Teenerless Weenie  Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California  |
I noticed that when I pulled my motor apart the oil pressure sender had no washer under it and there wasn't one in the gasket kit. Does it normally have one?
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| skline |
Feb 26 2005, 10:57 PM
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#2
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
I have never seen one, I just put a little plumbers tape on the threads and screw it in. It doesnt bottom out on the case.
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| Triaddave |
Feb 27 2005, 12:37 AM
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#3
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Member Group: Members Posts: 244 Joined: 31-December 03 From: olympia,wa Member No.: 1,478 |
there is no washer.i found an extra,extra long 90 that clears all the tin. i didn't want to kink the stainless hose line i'm using. the sender will mount towards the back of engine, on top of case at the hole that is never used
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| dmenche914 |
Feb 27 2005, 08:42 AM
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#4
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Senior Member Group: Members Posts: 1,212 Joined: 27-February 03 From: California Member No.: 366 |
It is a tapered thread. One caution with Teflon tape, is that if any bits of it get in the oil system, the Teflon bits might clog one of many small oil passages, starving a part of oil, so use a small amount of the tape, and donot let any tape hang past the end of the threads, in fact, leave a couple threads at the end bare to safe guard against torn bits of tape getting in the system.
Being a tapered thread, you need to know when to stop with the torque I believe it is listed in one of the manuals. It is very easy to overdo the torque, and keep going until you have bottomed out, then it will not seal unless you washer it , or best bet is to repair with a 1/8 inch pipe thread pipe, and union. It was even more a concern on the old Type 1 VW cases made of the softer, but lighter magnesium rather than the type IV aluminum. |
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| Allan |
Feb 27 2005, 09:14 AM
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#5
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
The one I'm thinking of screws into the top of the boss that the oil cooler is mounted to. Or is that something else? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) |
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| ClayPerrine |
Feb 27 2005, 09:24 AM
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#6
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Life's been good to me so far..... Group: Admin Posts: 15,436 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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You are correct. The oil pressure sender is mounted on top of the oil cooler flange. What he is referring to is a flexible line screwed in there to remote mount the sender so that a gauge can be added, and not just an idiot light. |
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| IronHillRestorations |
Feb 27 2005, 09:35 AM
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#7
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I. I. R. C. Group: Members Posts: 6,716 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
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You don't want to find out how small a piece of teflon tape it takes to damage a bearing! Use some Permatex Aircraft sealant on the threads.
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| Allan |
Feb 27 2005, 10:08 AM
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#8
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
That's better than the liquid teflon thread sealer? |
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