Snapped bolt drain plug

[thejinx]

I did an oil change today. Whilst doing back up the nuts and the bolt I snapped it. There doesn't seem to be any oil leaking. Should I worry? Cheers

 

[sparkywig]

What did you snap, the big drain bolt or one of the 6 studs that the sump plate and strainer mount on?
If it's one of the studs it will leak when it gets hot.
The best solution is to get the broken stud out without damaging the thread, inserting a new stud, and only doing the dome headed nut up to 5lb/ft.

The other option is to drill the broken stud out and refit one of these.

http://www.justkampers.com/vw-t2-bay-window-parts/t2-bay-engine-parts/oil-system-lubricants/n0144781-oversized-stud-for-sump-drainer-plate-on-all-vw-beetle-t2-split-and-1600cc-t2-bay.html" onclick="window.open(this.href);return false;

You could just drill the broken stud out and fit an 8mm bolt, but you'll have to open out the sump plate, strainer and gasket holes.

 

[thejinx]

It was indeed one of the studs :?

 

[georgeyv]

As above, it'll leak if they're not all done up.

You can either remove the stud carefully or drill and tap for an M8 repair stud - they step down to M6 so you can still use the normal sump plate etc.

 

[thejinx]

To get to the garage so I can drill it out I will need to do about 14 mile. When you say leak. Will it get that far. How do I use one of the oversize repair stud? Drill out the broken one the clean thread and put in new?

 

[Happystamps]

Repair stud-

Stuff rag into engine to catch swarf
drill out old stud
Drill hole to 7mm
tap m8 x 1 hole
apply loktite to new stepped stud
wind m6 nut onto stepped stud, so you can use a spanner to get it in
wind stepped stud into case

The trick isn't so much that it's complicated, it's just keeping everything clean and accurate.