Oil delivery tube bung stripped.

[Sucko Gomez]

I recently had to do some top end work, and read some incorrect torque specs for the head. Obviously I had oil oozing from any place it could. I read 25,11 and 7 for the head bolts, I hope it's correct now at 35, 14 and 11. I ended up stripping the threads on the delivery tube bung plug and I can't get it out. I'm not sure what to do and don't want to make it worse so I've done little with it over the past week, but it's leaking more than a quart a day. Tried a socket and pry bar under it, JB Weld to seal it. Even the string and door trick. Anyone have any experience with this? Any information about my dilemma is appreciated.

 

[TwoManyXS1Bs]

... I ended up stripping the threads on the delivery tube bung plug and I can't get it out...

Which ones? The one at the bottom, where the tube fits to the adapter, or the adapter into the engine block? Or one of the banjo fittings atop the head?

 

[Sucko Gomez]

I applied blue Locktite and spun it around to get it down to the threads. It appears to have worked but it's weeping a tiny bit. On to the tricky part. What will be the easiest way to get that nut out and what next?

 

[kshansen]

Loctite spec sheet:

http://www.loctiteproducts.com/tds/T_LKR_BLUE_tds.pdf

Says heat to 482ºF.

I'd try a little heat at a time and try turning it once in a while with good fitting socket.

 

[TwoManyXS1Bs]

Have a look thru these. See if they give you any insight.

http://www.xs650.com/threads/oil-delivery-tube.5073/

http://www.xs650.com/threads/stripped-thread-at-oil-delivery-pipe.33524/

http://www.xs650.com/threads/teflon-strong-enough.36480/

http://www.xs650.com/threads/helicoil-oil-delivery-tube-case-threads.2142/

http://www.xs650.com/threads/oil-feed-pipe-leaking.35847/

http://www.xs650.com/threads/oil-feed-delivery-pipe-with-damaged-nut.33973/

 

[Signal]

I didn't take the time to read through all the threads listed by 2M but if the case is stripped you can get oversize unions from Bilroy Engineering.

http://www.xs650.org.au/billroy engineering.htm

Sorry if this is a repost.

 

[xjwmx]

On to the tricky part. What will be the easiest way to get that nut out and what next?

Best as I can remember, so double check it, there's no reason to remove the part that stripped the case. The rest of it, what I did was use a propane torch on the upper nut, baked it really good, until it could be loosened. Solder will melt where the pipe goes into the fitting, so let the solder solidify again before you try to turn the nut or you'll have to resolder it too. IF there's no need to remove the bottom part from the case and if you use anti-seize on the rest so there's never a need to heat it again, I might consider jb welding the stripped part. You need two 22mm wrenches here, one to turn and one to turn against. Pawn shop with big bins of wrenches is handy.