crank washer?
 

what was the purpose of this washer in the back of the crankshaft on my 428 ?
it came right out with a pair of needle nosed pliers with no resistance the center hole looks as though it was cut with a torch as the back side is blued around the hole... :confused2

My only guess would be that it was needed to properly space and center a aftermarket torque converter, because I have had three 428 motors and I don’t recall ever seeing that .

Steve this engine and transmission were pulled from their original home the Bonneville they came out of had never been taken apart for anything but a timing chain a new water pump and a new fuel pump

Maybe during that build time the union was fighting with management. The Freemont plant was famous for dropping a ball bearings in the bottom of a door to create a rattle so it will come back.
Whatever it is, looks like a bonehead move to me. What is the wear in the middle of the washer from ?

Dragn I don't know the torque converter nose has no damage or weird wear on it so I am confused as to why it was there at all ...... this engine is original right down to the plastic from the original timing gear teeth still in the pickup screen

Do you have two converters on hand?

If so can you compare the overall lengths of there snouts to each other?

Maybe the factory got a bad batch of converters and had to make up those washers / spacers to use those converters.

I can think of others things transmission wise that may have made for a need for a spacer also, but I will wait to post that .

I witnessed a brand new high volume oil pump in about 1970 with a' big' paper clip inside?! From GM! We never know.

Doesn't the flywheel locate the converter?

No.

The converter centers on the input shaft splines of the transmission.

That is the centering snout off of the torque converter.

Odd crankshaft flange. In my opinion the pump bushing centers the converter. The converter snout “walks” in-out as the flex plate “flexes”.

2nd look as someone said crankshaft centering ring off a converter. I pulled a m 40 yrs ago and cracked that ,'washer' on the converter didnt have trans just ,level,right on jack.

To me, I figure someone had a pilot bearing in there then they put automatic in. The bearing kept converter from seating correctly. After many thousands of miles all wallowed out from flexing.


:confused:

Scarebird ... nope no spacers just that goofy washer

john the car has never been apart until now ... it's a 4 door 69 Bonneville and the only hole in the floor is from rust not a stick shift :)

I would have to say you are correct as you can see in the center where that hole is in the washer ...... guess I will have to go back and look at the T-converter snout again....... not that it matters the car it's going in is a stick anyway I was just curious and this explains it.

Thank You

the steps in the back of the crank are there but while the engine is at the machine shop he is going to machine it for the bushing