 oil pressure switch stripped need advice |
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| LCOX |
 Sep 29 2017, 01:49 PM
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#1
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Member  Group: Members Posts: 93 Joined: 19-December 09 From: Pinnacle Member No.: 11,148 Region Association: None  |
I noticed that the factory oil pressure switch was leaking on my 914. I removed it but the previous owner put it in crooked and stripped the threads in the case that the switch threads into. Can this be repaired with engine in car? What size drill, tap and insert do I need or is there another way to fix it? Thanx L
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| DM_2000 |
Sep 30 2017, 07:18 AM
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#2
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Member Group: Members Posts: 217 Joined: 16-August 17 From: PA Member No.: 21,351 Region Association: None |
Even with teflon tape there will usually be some metal to metal contact. If there isn't a hose clamp +a ground wire will fix things. Or put a short compression spring around the threads / under the switch.
The "right" way to fix this is to strip the motor bare and helicoil, but that gets to be $$$. |
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| BillC |
Sep 30 2017, 07:36 AM
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#3
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Senior Member Group: Members Posts: 674 Joined: 24-April 15 From: Silver Spring, MD Member No.: 18,667 Region Association: MidAtlantic Region 
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I googled it -- turns out you can use helicoils to fix NPT holes. Did not know that.
http://www.stanleyengineeredfastening.com/..._HC903-rev4.pdf But, since it requires drilling and tapping, it's not something you can do with the engine in place. |
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Posts in this topic
LCOX oil pressure switch stripped need advice Sep 29 2017, 01:49 PM
BillC It's rather risky, but this can be fixed in th... Sep 29 2017, 03:07 PM Perry Kiehl I'd wait for McMark, Chris Foley, Brad Mayeur,... Sep 29 2017, 03:28 PM DM_2000 Don't drill with engine assembled, too much if... Sep 29 2017, 04:19 PM The Cabinetmaker No teflon tape here. Switch grounds thru the threa... Sep 30 2017, 07:02 AM
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