Stripped head on oil strainer bolt

[HOL9654]

(I think due to me over tightening it the previous time) I am unable to remove the oil strainer access bolt with a 17 mm socket as I simply stripped the head. I’ve since tried vice grips and also a bolt extractor that fits on the head — but no luck. Has anyone else had this problem and been able to resolve it? Any ideas people have would be much appreciated. I’m reluctant to try anything where I drill into the bold head and use a reverse thread device) as I am concerned about leaving metal debris/shavings in the engine). Thank you! Eric

[Jge64]

Try heating it up with a torch for 5-10 secs and then grabbing it hard with a pair of vise grips….remember you are loosening counterclockwise.

If you need to drill it out, all of the debris should land in the basket, and then I would change the oil again. I think you’ll be fine.

[HOL9654]

Thanks Glen!

[Mon-Eye]

Yeh as Glen said really. Try keeping the heat on the bolt and the quench it with water or air line see if it will break the seal between the 2 metals. If not try heating the aluminium around it but very carefully and gently. Failing that your into the left handed drills and extractors. Old trick I've used a few times is impact driver on a smaller socket hammered onto the bolt but be aware off the housing again as its only alloy