Harley Davidson Forum

Ironhead Oil Drain hole stripped Question

  Printable Version
Harley Davidson >> Harley Davidson Motorcycles >> Classic >> Ironhead >> Ironhead Oil Drain hole stripped Question Page: [1]
Login
Message << Older Topic   Newer Topic >>
Ironhead Oil Drain hole stripped Question - 5/17/2008 5:40:58 PM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
Putting project bike back together after a two week break due to a new job found I have a slight problem. After finishing the clutch project and replacing the clutch cover tonight I went to put the oil plug back in and fill it. Found that the project bike oil plug hole is stripped. I sure don't want to have to try and find a case and pull it all back apart. Anyone give me an idea on           retapping since it is soft metal and using a larger pug ?

Doc you around ??

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68
Post #: 1
RE: Ironhead Oil Drain hole stripped Question - 5/17/2008 6:57:00 PM   
piniongear


Posts: 1621
Joined: 2/13/2006
Status: offline
piniongear's photo gallery
What kind of bike?
What year model?
Which plug is stripped out, filler or drain?
Is it the primary drain plug or the transmission drain plug
It would help if you could be a bit more specific.......pg


_____________________________


Rolling down the highway on two wheels since 1957...
Owner Red/White 1971 XLCH & 2003 FXDL-Silver over Black
http://area51.tzo.com/bperry/gallery

(in reply to madcritter)
Post #: 2
RE: Ironhead Oil Drain hole stripped Question - 5/17/2008 7:11:46 PM   
RJ61

 

Posts: 13
Joined: 12/23/2007
Status: offline
Check J&P cycles or some of the aftermarket parts dealers. They make an oversize drain plug that is sold with the tap for the threads

_____________________________

2008 FLSTC
1970 XLH
1961 XLH

(in reply to piniongear)
Post #: 3
RE: Ironhead Oil Drain hole stripped Question - 5/17/2008 7:21:38 PM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
quote:

ORIGINAL: piniongear

What kind of bike?
What year model?
Which plug is stripped out, filler or drain?
Is it the primary drain plug or the transmission drain plug
It would help if you could be a bit more specific.......pg



76 IronHead Sporty

oil drain plug hole

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68

(in reply to piniongear)
Post #: 4
RE: Ironhead Oil Drain hole stripped Question - 5/18/2008 4:03:38 AM   
Moon Wolf

 

Posts: 94
Joined: 5/27/2007
Status: offline
There are two oil drain plugs under there.

(in reply to madcritter)
Post #: 5
RE: Ironhead Oil Drain hole stripped Question - 5/18/2008 4:09:42 AM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
I'll be ordering a tap and plug. Problem resolved. 

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68

(in reply to Moon Wolf)
Post #: 6
RE: Ironhead Oil Drain hole stripped Question - 5/20/2008 2:17:08 PM   
Horse13


Posts: 87
Joined: 11/14/2007
Status: offline
You never remove the "plugs" under the engine. They strip easily and are not suppose to be removed. You drain oil in an Ironhead "crankcase" from the OIL TANK DRAIN ONLY.

You drain the primary/transmission through the primary oil fill level plug. ( lean it to do full drain)

Leave the plugs under the Crankcase alone. There is not hardly any oil in there anyway.

I just had to post that tidbit to hopefully save others from a stripped plug.

_____________________________

IRONHEAD MAFIA
Ironhead Sportster Fanatics Assn.
http://www.ironheadmafia.org
http://www.ironheadmafia.org/forums

(in reply to madcritter)
Post #: 7
RE: Ironhead Oil Drain hole stripped Question - 5/20/2008 2:37:44 PM   
Calwoodbutcher

 

Posts: 371
Joined: 3/27/2006
From: OC California
Status: offline
You can't tap the crankcase plug without splitting the cases. The flywheel is too close to the hole to run a tap in. Go to the auto parts store and get an oversize drain plug (they are self tapping) and run that in with some JB Weld (sorry Pinion). That plug aint supposed to come out anyway.

_____________________________

"When the government fears the people there is liberty; when the people fear the government there is tyranny"
:Thomas jefferson

(in reply to madcritter)
Post #: 8
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 1:29:33 AM   
Hopper

 

Posts: 16
Joined: 12/27/2007
Status: offline
Be careful with those self-tapping drain plugs. Some of them have a slotted nose on them, the thread cutting part, that can end up touching the flywheels if wound in far enough. I saw pics a while back where it looked like the end bits had broken off one inside the engine when the wheels turned.

If you are retapping the hole, and the tap is too long (or the self tapping plug is too long), once you have wound it in as far as it will go, youcan grind a bit off the end and get it in a bit further. Repeat process a few times until the tap goes all the way in. Just wont be able to use the tap again.

_____________________________

Hopper
1977 Sportster XLCH
Cairns, Australia

(in reply to Calwoodbutcher)
Post #: 9
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 6:35:25 AM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
I tried the self-tapping plug yesterday. Stopped by NAPA with old plug in hand making sure the self tapper was no longer. But could not get it started after about an hour of trying even tried recutting it. After that I recut with with a course tread cutter and was able to get a bolt in with no problem. Going back to NAPA this morning to see if they have a course tread over size plug.

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68

(in reply to Hopper)
Post #: 10
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 7:27:33 AM   
piniongear


Posts: 1621
Joined: 2/13/2006
Status: offline
piniongear's photo gallery
H-mmmm, this does not sound like a good situation at all..........pg

_____________________________


Rolling down the highway on two wheels since 1957...
Owner Red/White 1971 XLCH & 2003 FXDL-Silver over Black
http://area51.tzo.com/bperry/gallery

(in reply to madcritter)
Post #: 11
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 8:42:50 AM   
Horse13


Posts: 87
Joined: 11/14/2007
Status: offline
quote:

ORIGINAL: piniongear

H-mmmm, this does not sound like a good situation at all..........pg


No it sure does not!
Which is WHY you NEVER pull those plugs.
EVER!
They ain't made to be removed and not needed to remove to change oil.
Period.


_____________________________

IRONHEAD MAFIA
Ironhead Sportster Fanatics Assn.
http://www.ironheadmafia.org
http://www.ironheadmafia.org/forums

(in reply to piniongear)
Post #: 12
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 11:17:11 AM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
This is not a problem it is only another learning experience. We either Improvise , adapt and/or over come one way or another. The old biker who runs the NAPA store reminded me of something to use that will work and I have used many times on other problem projects. Now that I have it reamed out to a 1/2 inch course thread I got a short bolt the is all most same length as the original plug, a washer and a tube of 5200. If you are not familiar with 5200, if there had been one tube on the Titanic it would not have sank. The NAPA manager had about the same problem years ago on an old shovelhead. He put it back in with 5200 drove it for a couple of years before he sold it and last he head it is still in.  

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68

(in reply to Horse13)
Post #: 13
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 3:03:49 PM   
Horse13


Posts: 87
Joined: 11/14/2007
Status: offline
quote:

ORIGINAL: madcritter

This is not a problem it is only another learning experience. We either Improvise , adapt and/or over come one way or another. The old biker who runs the NAPA store reminded me of something to use that will work and I have used many times on other problem projects. Now that I have it reamed out to a 1/2 inch course thread I got a short bolt the is all most same length as the original plug, a washer and a tube of 5200. If you are not familiar with 5200, if there had been one tube on the Titanic it would not have sank. The NAPA manager had about the same problem years ago on an old shovelhead. He put it back in with 5200 drove it for a couple of years before he sold it and last he head it is still in.  


I hope it stays fixed and leak free. I would not remove it again if it is fixed. The tiny bit of oil in there is not a worry. Just drain tank and drain primary through overfill plug by leaning bike.
Best of luck!

_____________________________

IRONHEAD MAFIA
Ironhead Sportster Fanatics Assn.
http://www.ironheadmafia.org
http://www.ironheadmafia.org/forums

(in reply to madcritter)
Post #: 14
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 3:50:43 PM   
piniongear


Posts: 1621
Joined: 2/13/2006
Status: offline
piniongear's photo gallery
Yeah Horse13,
I cannot count how many people I have come across who have just had to remove that infamous plug in the crankcase bottom. Every one of them has had an unhappy ending, without exception! The best ending has the JB Weld holding, for a while anyway.......pg


_____________________________


Rolling down the highway on two wheels since 1957...
Owner Red/White 1971 XLCH & 2003 FXDL-Silver over Black
http://area51.tzo.com/bperry/gallery

(in reply to Horse13)
Post #: 15
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 5:15:29 PM   
Horse13


Posts: 87
Joined: 11/14/2007
Status: offline
quote:

ORIGINAL: piniongear

Yeah Horse13,
I cannot count how many people I have come across who have just had to remove that infamous plug in the crankcase bottom. Every one of them has had an unhappy ending, without exception! The best ending has the JB Weld holding, for a while anyway.......pg



You won't see "remove plugs under cases" in any service manual that is for sure!

Not sure why they are even there. I was told once it had something to do with the manufacturing of the cases???

The JB Weld will hold great if the crankcase and such is totally drained, the bike laid on it's side and the surface cleaned completely. Then let the stuff sit for 2 days.

Don't ask me how I know this. LOL

BTW, sure is a pretty bike you have.

_____________________________

IRONHEAD MAFIA
Ironhead Sportster Fanatics Assn.
http://www.ironheadmafia.org
http://www.ironheadmafia.org/forums

(in reply to piniongear)
Post #: 16
RE: Ironhead Oil Drain hole stripped Question - 5/27/2008 5:39:48 PM   
piniongear


Posts: 1621
Joined: 2/13/2006
Status: offline
piniongear's photo gallery
Yes, that is my understanding as well. It was put in there as a cheap way to plug up a hole needed for a machining step in building the engine.
If that story is true, I have never heard exactly what machining step was done. Earlier engines did not have this plug, so what the heck could have been so different to require a hole there?
I have no idea myself.......pg


_____________________________


Rolling down the highway on two wheels since 1957...
Owner Red/White 1971 XLCH & 2003 FXDL-Silver over Black
http://area51.tzo.com/bperry/gallery

(in reply to Horse13)
Post #: 17
RE: Ironhead Oil Drain hole stripped Question - 6/2/2008 3:12:41 PM   
straydog13

 

Posts: 69
Joined: 3/18/2008
Status: offline
i had the same problem.used a self tapping bolt made for this purpose.i never screwed it in all the way as it became really tight(perverts) i also screwed it back out pour oil in just to make sure there were no metal particles and then screwed it back in...but i just left it partially out.there is a small small leak that i am living with temporarily.--------i just wanted to say i am 99% sure i saw a haynes manual saying to drain it from the bottom.---yes everyone i am aware of what i can do with my haynes manual...i am just sayin...btw i will start leaning bike.

_____________________________

you only live once

(in reply to piniongear)
Post #: 18
RE: Ironhead Oil Drain hole stripped Question - 6/2/2008 3:18:51 PM   
madcritter



Multiple Time Contributor
Posts: 1163
Joined: 12/23/2007
From: Sunny Beach''''s of NC
Status: offline
quote:

ORIGINAL: straydog13

i had the same problem.used a self tapping bolt made for this purpose.i never screwed it in all the way as it became really tight(perverts) i also screwed it back out pour oil in just to make sure there were no metal particles and then screwed it back in...but i just left it partially out.there is a small small leak that i am living with temporarily.--------i just wanted to say i am 99% sure i saw a haynes manual saying to drain it from the bottom.---yes everyone i am aware of what i can do with my haynes manual...i am just sayin...btw i will start leaning bike.


Thanks

_____________________________


Ride hard you can rest when you die.
92 Ultra Classic Tour Glide
76 IronHead Sporty
5th SFG (ABN)
RVN 66-68

(in reply to straydog13)
Post #: 19
RE: Ironhead Oil Drain hole stripped Question - 6/3/2008 1:32:39 PM   
straydog13

 

Posts: 69
Joined: 3/18/2008
Status: offline
for the record the bolt i used i got from advance(probably same everywhere) and it was a slight oversized,made specifically for this reason.--what hopper said above scares me.next time i change fluid i will do what he says and be careful when i put it in and never remove it again.

_____________________________

you only live once

(in reply to madcritter)
Post #: 20
RE: Ironhead Oil Drain hole stripped Question - 6/3/2008 3:04:36 PM   
piniongear


Posts: 1621
Joined: 2/13/2006
Status: offline
piniongear's photo gallery
Forget it! If you have removed the plug only one time it is history. You are not going to be able to undo the damage you have already done. That crankcase material is at most 3/8 inch thick of very crummy cast aluminum alloy material.......almost like pot metal.
Inside the crankcase sits the flywheel assembly about another 1/4 to 3/8 inch away from the plug. You strip that plug and you are screwed...........pg


_____________________________


Rolling down the highway on two wheels since 1957...
Owner Red/White 1971 XLCH & 2003 FXDL-Silver over Black
http://area51.tzo.com/bperry/gallery

(in reply to straydog13)
Post #: 21
Login OR Register now to post a reply to this forum topic.
Page:   [1]

 
Harley Davidson Forums >> Harley Davidson Motorcycles >> Classic >> Ironhead
Jump to:



Featured Sponsors
Advertising Info

New Vendors
Warehouse Direc
Baker Drive Train
Haulen Ass
Pickard USA
Harley Goodies
Pickard USA
AMSOIL - Performance Oil Technology
Brain Bucket Magazine
HDForums.com Sponsors
AMSOIL - Performance Oil Technology

HDForums.com is not affiliated with or endorsed by Harley Davidson, Inc.