Oil plug threads

mike911 · 11-05-2008

Can anyone tell me what the threads are on the oil pan drain plug on a '71 1.9L? On my wife's new one, the PO threw together something screwy using lots of teflon tape, and it just doesn't give me the "warm fuzzies".

I do machine work, so I could probably make myself one if I can't find one to easily.

tomking · 11-05-2008

I think this is in a thread here somewhere. M14x??

Tru-Craft · 11-05-2008

Auto parts stores carry a 14mm plug that will work.
Not sure about the pitch probably a (1.5).
Take the old one with you.
The plug seals under the head, with a copper or plastic washer.
Hopefully the threads in the oil pan are in good shape.
Lyle

mike911 · 11-05-2008

Heh, heh, the old one I have looks like a 1/2-13 stud screwed into a heavy-hex nut and welded together. A real head-scratcher. The 14mm sounds about right, since it takes a fair amount of teflon tape to make it secure in the hole. I'll check to see if the local parts store has any of the 14mm plugs. Thanks.

2 Fast 4 U · 11-05-2008

Oil plug size is: M14 x 1.5

heimue · 11-05-2008

Originally Posted by 2 Fast 4 U

Oil plug size is: M14 x 1.5

Confirmed.

Dieter

2 Fast 4 U · 11-09-2008

Originally Posted by 2 Fast 4 U

Oil plug size is: M14 x 1.5

I forgot to mention that it's 19 mm long

11-05-2008	#1 (permalink)
mike911 Opeler Join Date: Oct 2008 Location: Brazoria, TX Posts: 11	Answered: Oil plug threads Can anyone tell me what the threads are on the oil pan drain plug on a '71 1.9L? On my wife's new one, the PO threw together something screwy using lots of teflon tape, and it just doesn't give me the "warm fuzzies". I do machine work, so I could probably make myself one if I can't find one to easily.

11-05-2008	#2 (permalink)
tomking tomking Join Date: Aug 2002 Location: SW Missouri Posts: 1,287	I think this is in a thread here somewhere. M14x?? __________________ TMK

11-05-2008	#5 (permalink)
2 Fast 4 U Detroit,where my home was Join Date: Oct 2005 Location: Maria - Hoop, The Netherlands Posts: 2,216 Real Name: Erick Provided Answers: 5	Oil plug size is: M14 x 1.5 __________________ Opel Ascona; driving one is like living on the edge. Only built from 1970 - 1975

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11-05-2008	#3 (permalink)
Tru-Craft 1970-GT Join Date: Sep 2005 Location: Clearwater, Florida Posts: 1,237 Provided Answers: 2	Auto parts stores carry a 14mm plug that will work. Not sure about the pitch probably a (1.5). Take the old one with you. The plug seals under the head, with a copper or plastic washer. Hopefully the threads in the oil pan are in good shape. Lyle

11-05-2008	#4 (permalink)
mike911 Opeler Join Date: Oct 2008 Location: Brazoria, TX Posts: 11	Heh, heh, the old one I have looks like a 1/2-13 stud screwed into a heavy-hex nut and welded together. A real head-scratcher. The 14mm sounds about right, since it takes a fair amount of teflon tape to make it secure in the hole. I'll check to see if the local parts store has any of the 14mm plugs. Thanks.

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