Old 11th September 2019, 07:54 PM #1
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Leaking sump plug

Is friend has a sump thatís leaking oil. It looks like the previous owner cross threaded the nut and [email protected]@ked up the threads. Canít find a replacement sump so whatís the best option for him. Heís in Cork if anyone has any recommendations on some business that could help him out. Thanks in advance.
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Old 11th September 2019, 08:38 PM #2
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Re: Leaking sump plug

Originally Posted by Mailiam
Is friend has a sump thatís leaking oil. It looks like the previous owner cross threaded the nut and [email protected]@ked up the threads. Canít find a replacement sump so whatís the best option for him. Heís in Cork if anyone has any recommendations on some business that could help him out. Thanks in advance.
what bike is it for would help ?
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Old 11th September 2019, 08:50 PM #3
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Re: Leaking sump plug

Depending on how much metal he's got to play with he might be able to tap it a size bigger, probably would have to take it to a machine shop he'd probably struggle to find a tap big enough to do it himself.
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Old 11th September 2019, 09:30 PM #4
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Re: Leaking sump plug

helicoil or next size up rethreaded. Needs to be done right, dead straight.
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Old 11th September 2019, 09:51 PM #5
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Re: Leaking sump plug

Helicoils are ok to get you out of a hole...or if you never plan on removing the bolt that threads into it,they are shit for most applications and I wouldnít put one near a sump. Timesert is a far superior job,but in this case I would look at how much meat is available around the threaded area and get the next size up if possible,youíd have to drill it out in any other case but with a sump repair kit you may only need to tap a new thread. Thereís lots of options for a good fix these days,but ideally good replacement sump is always the best fix here
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Old 12th September 2019, 06:15 PM #6
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Re: Leaking sump plug

Thanks for the replies - Iíll pass on the info to him. I think itís a Honda X11.
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Old 13th September 2019, 08:19 AM #7
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Re: Leaking sump plug

Years ago had a sump issue with a Honda 500-4.

Was easier to get a new one.
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Old 13th September 2019, 11:36 PM #8
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Re: Leaking sump plug

Had it happen on a zxr 400 (sump bolt pulled alum sump threads)

Drained oil
Layed bike on its side
Drill new hole
Tapped and inserted helicoil
Installed sump bolt with new compressable copper washer

Jobs a good un

Be careful when undoing sump bolt for next service. Unbolt slowly so helicoil doesn't come with it.
Hope this helps
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Old 14th September 2019, 03:21 PM #9
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Re: Leaking sump plug

Quick fix is a rubber washer
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Old 14th September 2019, 09:11 PM #10
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Re: Leaking sump plug

A nothing to lose option would be:

Remove the sump plug.

Cut a couple of notches into the first couple of mm of the threaded section (@ 90į to the threads) of the plug, to act as a rudimentary tap (or find and use the correct sized tap).

Re-tap the hole straight, using either the modified plug or the correct tap.

Refit the plug with a bonded washer. The washer has a built-in rubber seal that means that excessive torque isn't required to effectively seal the plug to the sump.

Just an option costing a few cents.
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Old 14th September 2019, 11:04 PM #11
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Re: Leaking sump plug

If you are going down the helicoil route, or even rethreading, consider using one of these instead of a sump plug. They save you having to undo the bolt later on at oil change time....very handy for simple oil changes loike.

https://m.louis.ie/artikel/stahlbus-...valve/10002846

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