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Help Needed!!

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Just last night, while i was changing my engine oil, (and installing my new SFB water pump/oil filter cover) i was torquing the smaller drain bolt, and the threads, on the casing, stripped!!! Any advice on what i should do?

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You can drill it out and tap it for a larger screw, the smallest one you can use while still being able to remove the old threads.

I have heard of JB weld repeairs and rethread to the same size, but I have seen those strip right out too.

You could drill it bigger and use a helicoil tap to tap threads for the helicoil, then install the helicoil and use the same bolt.

Some people JB weld the bolt in place and never remove it again.

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My 14mm drank bolt is slightly cross threaded. I bought it used, and the first time I changed my oil, I noticed it was cross threaded. I'm gonna keep using it until I have to get it tapped out.

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The first thing I would do is run the same size tap 6mm I think. Usually the softer bolt will strip before, or to a greater extent than the case. Try the tap and a fresh bolt finger tight. If it seems to bite, confirm the proper torque for those bolts and use a good quality inch pound torque wrench to confirm it will hold to the specified torque, hope it does. If that does not work the Helli coil is your best bet. I bought a as new snap-on 40-200 in/lb wrench on ebay for about $60, great investment. I use assembly lube and torque everything, no stripping, things go together and come apart nicely.

Merlinn

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How are you guys tightening all these bolts with torque wrenches and still stripping them? I do all my stuff by hand and haven't had any issues. Helicoil is your best bet to fix it, either that or get a time-sert. Next time, with such a small bolt, try using a box wrench to tighten it just until it's snug.

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Thanks guys for the info. I brought it to a dealer near my house and the owner just happened to be a machinist. He used a helicoil and took out the spark plug adn forced pressure into the engine so any filings would come out.

Thanks again.

- i'm gonna go ride

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use 1/4" drive, not 3/8".....it's 6mm in aluminum, they shouldn't be tighter than 10ft/lbs, which isn't as much as you can turn with your wrist....go easy on them.

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