67 327 crank pulley ?

paulmanta · Apr 6, 2016

Hi Folks,

I am coming to the assembly stage of my total rebuild of the 327 that is in my 67 Camaro.

I have spotted the front crank pulley is suffering from a really deep score line where its been running against the front crank seal for the last 50 years.

Does anyone know of a supplier for a new crank pulley or am I looking at getting this one machined and sleeved ?

I would prefer a new or excellent used one if possible because the rubber bonding between the outer ring and main boss is showing some cracking.

A further question, is the crank pulley held on by a bolt and washer ? Mine had nothing but to remove the pulley I had to pull it off with a puller, is this normal or am I just very lucky that the pulley had not walked off the crank long ago ?

Stamped engine number is VI206ME if that helps id what pulley I need.

I have reason to believe its the original engine and trans in the car and I am the first person to disturb it. It is all going back as original.

flat tire · Apr 6, 2016

I believe you are looking for a harmonic balancer
summit or jegs will have them

dyno jonn · Apr 6, 2016

paulmanta said:
Hi Folks,

I have spotted the front crank pulley is suffering from a really deep score line where its been running against the front crank seal for the last 50 years.

Fel Pro, and no doubt others, sell a sleeve and seal repair kit separately or as part of a timing cover gasket kit to repair your damper. The stainless steel sleeve presses over the worn area of the damper and makes it straight again. The sleeve is thin enough that it still works with the standard seal design. A great way to retain original parts while saving $$$.

paulmanta · Apr 6, 2016

Thanks for the suggestions.

I feel a little bit silly now as I had been searching for pulleys and what I actually needed was a harmonic balancer.

Now I have the correct name in my searches I have found lots of suppliers of new ones both NOS and from places like Rock Auto.

Thanks for the help. think I have it covered now.

Everett#2390 · Apr 6, 2016

While changing the h/balancer or sleeving the old one, get a new seal for timing cover and replace it.
Use sealant on the outside and plenty of lube on the lip before service.
Ensure you have the correct diameter for installation

paulmanta · Apr 6, 2016

Everett#2390 said:
While changing the h/balancer or sleeving the old one, get a new seal for timing cover and replace it.
Use sealant on the outside and plenty of lube on the lip before service.
Ensure you have the correct diameter for installation

The whole motor is apart at the moment and the timing case has been acid dipped the outside painted and the seal replaced.

You raise a good point with double checking the seal size, I will check that.

Just caught two more problems, a split in the dipstick tube and two slightly bent pushrods.

I have a set of spare pushrods but the dipstick tube is one to sort out before I run the motor up.

At the moment I am cleaning all the threads of all the head bolts and making sure the holes are free from oil or dirt.

TJS69 · Apr 6, 2016

Your crankshaft may or may not be drilled and tapped for a harmonic balancer. It is not needed on the early low-performance engines. I personally would drill and tap yours and install a bolt. It is cheap insurance. Think of the damage it could do coming off even at only 3000 RPM !

paulmanta · Apr 6, 2016

TJS69 said:
Your crankshaft may or may not be drilled and tapped for a harmonic balancer. It is not needed on the early low-performance engines. I personally would drill and tap yours and install a bolt. It is cheap insurance. Think of the damage it could do coming off even at only 3000 RPM !

The crank is threaded, its just the bolt and washer are long gone.

I got the car just over a year ago and judging by the dirt build up this has been like it years.

braber427 · Apr 6, 2016

Be sure and use the proper installation tool to install the harmonic balancer -- do not use a hammer to drive it on or use the screw and washer to pull it on. Auto parts stores, like O'Reilly rent them for free. Then be sure to use the correct bolt and washer to keep the balancer in place.

paulmanta · Apr 7, 2016

I have a tool for pulling power steering pulleys off the pumps and it can also be used to re-install. On my last small block I used it to put the damper back on and it was fine.

As you say, don't beat it on !

JERRYS 69 Z · Apr 7, 2016

Don't cheap out. Buy a new balancer. You won't have any problems
Down the road. It's a lot of work to replace one later.

paulmanta · Apr 7, 2016

JERRYS 69 Z said:
Don't cheap out. Buy a new balancer. You won't have any problems
Down the road. It's a lot of work to replace one later.

Got a new one coming, after a bit of deliberation I concluded that its more hassle to replace it once the motor is in and running and I don't want leaks.

I still feel a bit stupid for googling "crank pulley" and not Harmonic damper. No wonder I couldn't find what I needed.

67 327 crank pulley ?

paulmanta

flat tire

dyno jonn

paulmanta

Everett#2390

paulmanta

TJS69

paulmanta

braber427

paulmanta

JERRYS 69 Z

paulmanta

Top Contributors this Month

Recommended Communities