legacycentral bbs

I just picked up this car 2 weeks ago with intent to fix and drive daily but with an unexpected problem I am forced to sell.

Crankshaft threads are stripped. I don't plan on tearing the engine apart to replace it.

I MAY end up keeping it throughout the winter with plans to to either drop a new engine in or part it out.

Info

White Exterior/Grey Interior
118,xxx miles
Previous owner claims: Auto Tranny and Turbo are rebuilt
Interior in decent shape
Passenger side in great condition.
Relatively new tires




Driver's side front and rear fender damage.


Will post more info and pics to come soon.

do what I did. My crank bolt broke off in the end of the crank due to some jackass using globs of loctite. Use a large bolt, bevel the top of it, and weld it to the crank, and use it as a stud.

Thanks for your input. I think I might go that route but am having trouble visualizing exactly what you did. Mind doing a quick sketch in MS Paint of how you used the bolt?


Just to clarify the problem..
After finishing a timing belt job, I try to install the crankshaft bolt it and it starts stripping. I got another bolt and it did the same thing so the threads inside the crankshaft are toast.

sounds like he cut the head off the original bolt or a longer one of the same thread, put a shoulder on it for threadability, and threaded it into the crank then welded it.
But I'd only consider welding as a last resort. try to helicoil it(though it is really hard metal) or get a threaded sleeve for a slightly smaller bolt that requires minimal drilling to the crank and weld or epoxy it in, being careful with your torque and using red loctite.
if you do any welding on the crank might be a good idea to cover the little bit with soaking wet rags to prevent heat transfer to the rest of the crank and to replace the crank seal.

if you look at the end of your crank, you will see it has a bit of a bevel to it. get a bolt where the head of the bolt is as wide as the largest part of the bevel. put the bolt in a drill(grab by threads) grind it against a grinding wheel at an angle until the bolt head is like a cone shape, so it matches the shape of the end of the crank. then hold it really steady in the end of the crank, then weld around it to secure it to the crank. make sure to tack weld on opposing sides of the crank, so as not to make it off-center. Also replace the crank seal as this may damage it. Too much? take it to a reputable auto/fabrication/welding shop.

Very crude/quick drawing, but you get the point. I'm going to bed........good night, and good luck

I performed a similar surgery on mine.

What are you asking for the car?

Looking for $500 if I don't get around to fixing it.

thanks for the advice. I'm going to go the helicoil route first and if that doesn't work out I may end up trying the welding option.


Does anyone know the correct size of Helicoil (crankshaft bolt thread pitch/size)?

Thanks