Hello,

Nasty issue with my 1999 Road King Classic.
The primary oil drainplug is very loose and leaks heavily. I would like to repair it with a helicoil or a self tapping plug.
For both methods I need to tap new threads in the oilpan.
There is only very limited space to use the tools I have.

What is the best method, or tools, to tap the threads?

 

Have a read https://www.hdforums.com/forum/dyna-...-stripped.html

 

Friend of mine had the same issue , he used a time-sert , in my opinion better than the helicoil for this purpose . I was in the shop at time he did it , doing my own thing , but we chatted while he worked , removing the primary made the job much easier . As I recall , he tapped , used red loc-tite on the time-sert and installed , took less than 1hr .

 

Thx kel03, I came across this thread earlier. Found really helpfull information.
I'm aware of the solutions but my question is how do you handle the small space?
Its 8,5 cm (3.3 inch) and my tapping tool is 9 cm (3.5 inch).
Issue is ofcourse the horizontal placing of the plug..

 

Japiooo - I just had this issue with a '99 Electra Glide Classic flip bike I bought. Drain plug threads were toast.

I was told that because drain plugs are short, if you wreck the first part of the threads, there is still good threads farther back. I was told to get a longer bolt to grab those threads.

I went to my local hardware store and did just that.

It worked. YMMV

 

Remove the oil pan.

 

Take off the primary. Clutch basket won't give enough internal clearance for the tap plus the metal shavings need to be cleaned.

 

There may be some miscommunication here. Primary can also mean main. Since the OP said it's horizontal, it must be the engine oil plug.

 

If possible go to an online harley parts link.
Then identify actual part number and of damaged part.
There seems to be some confusion.
Which plug?
Primary
Transmission
Engine oil

 

He said it’s a 1999, they don’t have an oil pan which is why I took primary as I did. Who knows tho! LOL!