Crank Shaft Pulley
- Thread starter jwaldrich
- Start date
dumb person
Well-known member
To change the pin you only need to turn the engine over until the hole in the crank' lines up with the hole in the bottom of the pan. Removing the radiator might make this easier but i have done it on the roadside when it fell out while driving (odd occurrence)
jwaldrich
Senior Member
No idea why the pin sheared. this has been a good running car that I purchased about 3 years ago and was already rebuilt.
Used a puller and finally got the old pulley off. Cleaned up the burs on the crank shaft (couple very small ones).
Installed a new pulley but had to trim a rivet head in the pan to get the new pulley past it. Used a Dremel and just shaved it down a tad. Shouldn't be an issue.
The new pulley went on "OK" but I had to use a wood block to tap it on. I wasn't happy about that but short of drilling out the pulley or sanding down the crank shaft there was little I could do. It went on straight thank gawd and I installed a roll (spring) pin.
The new pulley is about a 1/4 inch wider than the one I removed necessitating the work on the rivet head.
Don't know why the old pulley/pin went bad. Have had no incidents since I've owned the car that could even remotely cause this to happen.
It'll be done tomorrow. Thanks for the guidance as I am REALLY happy I didn't have to pull the engine!
Used a puller and finally got the old pulley off. Cleaned up the burs on the crank shaft (couple very small ones).
Installed a new pulley but had to trim a rivet head in the pan to get the new pulley past it. Used a Dremel and just shaved it down a tad. Shouldn't be an issue.
The new pulley went on "OK" but I had to use a wood block to tap it on. I wasn't happy about that but short of drilling out the pulley or sanding down the crank shaft there was little I could do. It went on straight thank gawd and I installed a roll (spring) pin.
The new pulley is about a 1/4 inch wider than the one I removed necessitating the work on the rivet head.
Don't know why the old pulley/pin went bad. Have had no incidents since I've owned the car that could even remotely cause this to happen.
It'll be done tomorrow. Thanks for the guidance as I am REALLY happy I didn't have to pull the engine!
Steve Jelf
Well-known member
John, I would ditch the roll pin. It won't last. Spend a couple of bucks for the stock #3040 pin. The pulley should have a large hole on one side for installing/removing the pin, and a smaller hole opposite that for driving out the pin with a drift. One end of the pin has a little hole for a cotter pin to keep it from going back out through that big hole.
Somebody drilled out the small hole in this pulley so I had to use two cotter pins, but this is otherwise the stock set-up.
Somebody drilled out the small hole in this pulley so I had to use two cotter pins, but this is otherwise the stock set-up.
