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Username Post: drain plug        (Topic#367456)
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-14-22 07:37 PM - Post#2834554    

When i gave my car its first oil change the drain plug was semi stripped already, had 2-3 plastic washers on it and some kind of sealant on it. It leaked very little but nothing to really worry about. Fast forward to couple days ago needing to do another oil change i had to take care of this problem.
Plan was to tap a bigger hole for an oversized plug. Pain in the arse as the placement of the drain hole and tap hits the frame just a tad. After much cussing i tapped it but now it still leaks (prob more than before)
I tried the washer supplied with the new plug (cork like) first then a soft metal one and still same results.
My threads probably arent the best as i was hard to tap it going in straight. What are my options? A quick search and theres a drain plug sealant?



 


Stittville Ed 
Contributor
Posts: 212

Reg: 01-10-16
01-15-22 07:45 AM - Post#2834565    
    In response to sanee64

If you can find a Old School Parts Supply House they may be able to help.
All the Chain stores will most likely just have Metric.

Or a old Repair shop.

The Quick Change Oil place must strip a lot of them so I might ask them, but never let them do the work.



 
Tony1963 
Frequent Contributor
Posts: 1303

Loc: Orlando Florida
Reg: 07-09-18
01-15-22 08:31 AM - Post#2834566    
    In response to sanee64

I've never seen much of a fix on this issue. Not only are the threads ruined, the pan is probably deformed around the drain hole.

If you can get one to work and it is close to the frame, I'm wondering if your motor mounts are sagging?

In a prior life we replaced hundreds of oil pans due to the kind of thing that you are describing. The steel ones are more forgiving but forget about aluminum and otherwise.

I'm suggesting a new oil pan if you want to go that far.



 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-15-22 10:03 AM - Post#2834574    
    In response to Tony1963

Im literally trying everything to not have to replace oil pan as it seems to be a bit of a pain. I just tried the drain bolt sealant and didnt work worth a damn.
im thinking of jb weld the damn thing as im getting tired of dealing with it. When time comes for another oil change, i just drill another hole and tap it. Or hopefully ill have to drop the engine by then to do a complete rebuild of the car by then



 
Tony1963 
Frequent Contributor
Posts: 1303

Loc: Orlando Florida
Reg: 07-09-18
01-15-22 10:51 AM - Post#2834575    
    In response to sanee64

The factory and replacement pans have a steel fitting spot welded on the inside of the pan where the bolt threads into. You cannot simply drill a hole and thread the sheet metal.





 
DZAUTO 
Member #51
Posts: 9156

Loc: Mustang, OK, USA
Reg: 12-25-99
01-15-22 11:36 AM - Post#2834581    
    In response to Tony1963

If you want to retain your original pan (AND I WOULD), the ONLY, repeat, ONLY sure fire cure is to remove the pan (YA, YA, YA, YA, I KNOW IT'S A PAIN), remove the old threaded nut inside and weld in a taller nut with more, fresh threads. Then drill a hole in 2-3 flats of the nut so that most of the oil will drain.
This not an oil pan, it is a rearend that I welded a nut on the inside. The principle is the same.


Attachment: 100_2922-1.jpg (52.63 KB) 16 View(s)






 
turbo38s10 
"11th Year" Gold Supporting Member
Posts: 2004
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
01-15-22 02:16 PM - Post#2834587    
    In response to DZAUTO

If memory serves me right they used to sell oversized self tapping drain plugs just for that reason.
Such as these:
https://www.ebay.com/itm/115171246951?hash =item1ad...



 
DZAUTO 
Member #51
Posts: 9156

Loc: Mustang, OK, USA
Reg: 12-25-99
01-15-22 02:37 PM - Post#2834592    
    In response to turbo38s10

  • turbo38s10 Said:
If memory serves me right they used to sell oversized self tapping drain plugs just for that reason.
Such as these:
https://www.ebay.com/itm/115171246951?hash =item1ad...



That is EXACTLY correct. I'm kind of surprised that has not been mentioned.



 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-15-22 06:48 PM - Post#2834605    
    In response to turbo38s10

  • turbo38s10 Said:
If memory serves me right they used to sell oversized self tapping drain plugs just for that reason.
Such as these:
https://www.ebay.com/itm/115171246951?hash =item1ad...



i actually bought that also. funny part is the new drain plug fits but not this and its the same size. ill mess with it again tomorrow



 
chopr1 
"4th Year" Gold Supporting Member
Posts: 96
chopr1
Age: 75
Loc: Copan, Oklahoma
Reg: 01-11-19
01-16-22 01:01 AM - Post#2834617    
    In response to sanee64

Had the same problem, and did buy an over size kit. (they come in different sizes as I remember) BUT, retapped, still leaked, got it to stop for this oil change. Procrastinating before the next change. Sorry for no help. If you don't find an answer from the fellows on this forum, it is a tough nut to crack, so to speak!!!!!



 
Levon 
Poster
Posts: 86

Loc: NY
Reg: 05-06-09
01-16-22 03:12 AM - Post#2834619    
    In response to chopr1

They used to sell a rubber drain plug with a plastic adapter in the help section of auto parts stores. You push the rubber into the oil drain hole, twist and release. It expanded inside the drain plug hole. The rubber looked like a baby bottle nipple. That's what I used on my 1966 Impala stripped and it never leaked.



 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-16-22 07:20 AM - Post#2834627    
    In response to Levon

  • Levon Said:
They used to sell a rubber drain plug with a plastic adapter in the help section of auto parts stores. You push the rubber into the oil drain hole, twist and release. It expanded inside the drain plug hole. The rubber looked like a baby bottle nipple. That's what I used on my 1966 Impala stripped and it never leaked.



what voodoo magic part is this called??



 
1941srodcoupe 
Member
Posts: 135

Reg: 07-08-03
01-16-22 08:29 AM - Post#2834630    
    In response to sanee64

Now that you have the leak stopped you can treat it like a boat engine. Buy a siphon kit that remove the oil through the dipstick tube. They are about $80 and come in handy for many other things. I have used it on a few cars then pulled the drain plug just to see how much oil it missed. I'd say less than 2 ounces.



 
Tony1963 
Frequent Contributor
Posts: 1303

Loc: Orlando Florida
Reg: 07-09-18
01-16-22 10:47 AM - Post#2834638    
    In response to 1941srodcoupe

Many European car makers also specify the vacuum method. They all provide a drain plug, too.

Any sediment comes out the drain plug. I am not a fan of the vacuum method for that reason.

I always pull the drain plug on my Mercedes vehicles.



 
1941srodcoupe 
Member
Posts: 135

Reg: 07-08-03
01-16-22 11:02 AM - Post#2834642    
    In response to Tony1963

I agree. but if it thorouhgly heated there shouldn't be hardy any sediment. Unless it's a nasty caked up mess inside already.
  • Mercedes Said:
Many European car makers also specify the vacuum method. They all provide a drain plug, too.

Any sediment comes out the drain plug. I am not a fan of the vacuum method for that reason.

I always pull the drain plug on my Mercedes vehicles.






 
Tony1963 
Frequent Contributor
Posts: 1303

Loc: Orlando Florida
Reg: 07-09-18
01-16-22 11:14 AM - Post#2834643    
    In response to 1941srodcoupe

You are correct. I find that pulling the drain plug is easier.





 
bobb 
Super Senior Member
Posts: 6003

Loc: paradise
Reg: 09-05-03
01-16-22 11:27 AM - Post#2834646    
    In response to sanee64

try wrapping the plug close to the head with a bunch of teflon tape. next oil change make sure to get all the tape out of the hole. i have seen this work a bunch of times.

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


 
55Brodie 
Contributor
Posts: 393

Age: 70
Loc: Little River, SC
Reg: 12-26-15
01-16-22 01:57 PM - Post#2834653    
    In response to sanee64

Google Loctite 236382.



 
Tony1963 
Frequent Contributor
Posts: 1303

Loc: Orlando Florida
Reg: 07-09-18
01-16-22 02:51 PM - Post#2834657    
    In response to 55Brodie

Plumber's putty mixed with Sakrete.



 
docjns1 
"2nd Year" Gold Supporting Member
Posts: 272
docjns1
Loc: upstate NY
Reg: 11-12-19
01-16-22 07:42 PM - Post#2834672    
    In response to Levon

  • Levon Said:
They used to sell a rubber drain plug with a plastic adapter in the help section of auto parts stores. You push the rubber into the oil drain hole, twist and release. It expanded inside the drain plug hole. The rubber looked like a baby bottle nipple. That's what I used on my 1966 Impala stripped and it never leaked.


Never fails! I used one of those on my '71 New Yorker many years ago...worked great but I probably wouldn't on a classic now days unless as a temp fix till I could remove the pan and do a proper fix or replacement.

Dorman 091-044 on eBay along iwth a few other mfrs.


Steve
*********
'65 Impala SS, Crocus Yellow/blk
327 / 300 L74
M11 3 on the tree
12 bolt 3.31 open dif


Edited by docjns1 on 01-16-22 07:47 PM. Reason for edit: No reason given.

 
55Brodie 
Contributor
Posts: 393

Age: 70
Loc: Little River, SC
Reg: 12-26-15
01-17-22 12:01 AM - Post#2834683    
    In response to Tony1963

Oh, so now you're a chemist, too?



 
bobb 
Super Senior Member
Posts: 6003

Loc: paradise
Reg: 09-05-03
01-17-22 08:00 AM - Post#2834696    
    In response to 55Brodie

lol

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.


 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-17-22 03:19 PM - Post#2834727    
    In response to bobb

  • bobb Said:
try wrapping the plug close to the head with a bunch of teflon tape. next oil change make sure to get all the tape out of the hole. i have seen this work a bunch of times.



well that didnt work




 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-17-22 03:21 PM - Post#2834728    
    In response to docjns1

https://www.ebay.com/itm/142329162906
this thing?

  • docjns1 Said:
  • Levon Said:
They used to sell a rubber drain plug with a plastic adapter in the help section of auto parts stores. You push the rubber into the oil drain hole, twist and release. It expanded inside the drain plug hole. The rubber looked like a baby bottle nipple. That's what I used on my 1966 Impala stripped and it never leaked.


Never fails! I used one of those on my '71 New Yorker many years ago...worked great but I probably wouldn't on a classic now days unless as a temp fix till I could remove the pan and do a proper fix or replacement.

Dorman 091-044 on eBay along iwth a few other mfrs.







 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-17-22 03:22 PM - Post#2834729    
    In response to 55Brodie

  • 55Brodie Said:
Google Loctite 236382.


oh nice and well worth a shot. thanks



 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-17-22 03:28 PM - Post#2834731    
    In response to Tony1963

  • Mercedes Said:
Plumber's putty mixed with Sakrete.


ill hit ya up if i need a margarita



 
turbo38s10 
"11th Year" Gold Supporting Member
Posts: 2004
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
01-18-22 09:37 AM - Post#2834775    
    In response to sanee64

Here is a double oversize:
https://www.ebay.com/itm/154498520709?epid =1022876...



 
1941srodcoupe 
Member
Posts: 135

Reg: 07-08-03
01-18-22 12:16 PM - Post#2834783    
    In response to sanee64

I think that's what he is talking about. I've had to use those back in the 70's & 80's they work quit well.



 
docjns1 
"2nd Year" Gold Supporting Member
Posts: 272
docjns1
Loc: upstate NY
Reg: 11-12-19
01-18-22 04:12 PM - Post#2834804    
    In response to sanee64

thats the one, though there are several similar in design and function

Steve
*********
'65 Impala SS, Crocus Yellow/blk
327 / 300 L74
M11 3 on the tree
12 bolt 3.31 open dif


 
sanee64 
Contributor
Posts: 152

Loc: atlanta ga
Reg: 04-05-18
01-18-22 07:20 PM - Post#2834817    
    In response to turbo38s10

  • turbo38s10 Said:

I think im going to go this route as i already have this. Just got to make sure it goes in right as i tried it couple days ago and was having a hard time trying to get it to start.

The thread sealant is going to be messy and having to make sure the drain hole is super clean which is gonna be tough.

Got tonite to think bout it, then ill try it tomorrow. What say you guys?




 


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