Originally Posted By: supton
Originally Posted By: FordCapriDriver
Originally Posted By: Tdbo
I had a brand new 1982 Monte Carlo with a V6 in it.
Diving down the street at 25 MPH, the crankshaft snapped in half. This was with 3000 miles on the odometer.
After many issues with the vehicle (this was pre-Lemon Law,) I unloaded it at 13K. A family friend kept after me until I sold it to her. She bought it with full disclosure. By the time this car hit 21K, it had a new motor and transmission in it. This car was absolutely not abused, it was just that bad.
However, the check engine light worked flawlessly.
How did it just snap in half?
GM was just that good back then.
This is one of the earlier V6's, probably a 200 or 229. Split journals on the throws I think. To make a 90 degree V6 (reusing the 90 degree V8 tooling) with even firing a split journal gets used. But that leads to weak throws.
Oh i see... yes 90 degree V6s have bad vibration issues , Ford also made an oddball flat plane crank 60 degree V4 yes V4 m that needed a balance shaft to kep the engine from vibrating like an earthquake, i have also heard of some cases of cranks snapping in half on those engines.
Originally Posted By: FordCapriDriver
Originally Posted By: Tdbo
I had a brand new 1982 Monte Carlo with a V6 in it.
Diving down the street at 25 MPH, the crankshaft snapped in half. This was with 3000 miles on the odometer.
After many issues with the vehicle (this was pre-Lemon Law,) I unloaded it at 13K. A family friend kept after me until I sold it to her. She bought it with full disclosure. By the time this car hit 21K, it had a new motor and transmission in it. This car was absolutely not abused, it was just that bad.
However, the check engine light worked flawlessly.
How did it just snap in half?
GM was just that good back then.
This is one of the earlier V6's, probably a 200 or 229. Split journals on the throws I think. To make a 90 degree V6 (reusing the 90 degree V8 tooling) with even firing a split journal gets used. But that leads to weak throws.
Oh i see... yes 90 degree V6s have bad vibration issues , Ford also made an oddball flat plane crank 60 degree V4 yes V4 m that needed a balance shaft to kep the engine from vibrating like an earthquake, i have also heard of some cases of cranks snapping in half on those engines.