Quote:
Originally Posted by GearKid
Quote:
Originally Posted by Macpsi
my thought process is, when the tech was dissembling and the bolt did have some ripped threads on it why not shoot a picture of it immediately? Are the stock rod bolts coated with anything? Could see if they used a high powered impact the wrong way by checking the head of the bolt for any nicks/chips from the impact hitting against the bolt head during tightening/loosening.
|
I'm at a loss too. I've yet to pick up the car but hopefully all the old bearings and bolts are available. If so I'll look carefully at these bolts and take lots of pictures . I can tell you there won't be thread debris. There won't be any since the bolt threads are wider than the shank. Any thread material would be removed as the bolt made its way through the intact zone of threads. (The first 1/2 inch or so of threads is not in contact with the bolt's threads when torquing down so these will be intact.)
Shop is pretty firm on their stance that this was pre-existing, so let's go from there.
Theory to support this claim:
In the recent past, someone messed around and must have ever so slightly over tightened that one bolt. The rod bearings are stock and look to be consistent for the motor's mileage. That implies guilt on the former party, so instead of installing new bearings they put everything back together and put the car up for sale. The new owner drives the car for 500 miles since purchase and brings it in for new bearings. The tech goes to retorque that partially compromised bolt and it fully strips before getting half-way to spec.
Is this possible? Absolutely, but it would be easier to swallow if alcohol were involved...  |
That story is very very unlikely. Moreover whenever something goes wrong like this it shows up on a forum or Facebook group. If the last owner screwed up they'd have asked how long it would last if they just closed it up.
If it was compromised from before, how did it survive this long.
Something really stupid happened when this shop dropped the oil pan. We will never know what exactly what happened.