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Canadian Poncho Homepage -> Canadian Poncho -> 58-64 Full Size Power Train Tech Forum -> 327 Balancer
Post Info TOPIC: 327 Balancer
Bill shuba


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327 Balancer
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63 327 balancer must be pressed on no center bolt in crank..ok how do you press it back on...4x4 and a hammer ?  



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seventy2plus2


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What do you mean "no center bolt in crank"?
The crank isn't even drilled & tapped? Or its tapped but no bolt present?

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4SPEED427


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Yes, he is right, all small journal cranks I've ever seen (67 and older) never had a bolt.

My one concern with pounding it on is that the thrust bearing on the crank takes all the abuse when you do it that way. I know guys do it but to me it's scary.

Is the engine in the car? When I rebuilt my 327 years ago I stood the engine up on end on the floor so that the back of the crank was supported and then tapped it on.

I think the factory service manual even shows that you can do it with a block of wood as you say though.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
GLHS60


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Back in the day I always drilled and tapped the crank to use a 350 bolt and washer.

Cranks are easy to drill.

Thanks
Randy

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DonSSDD


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A good idea to drill and tap them and use a bolt. I'd try to install using a hammer and a piece of wood and gentle persuasion if you don't go that route. Don't hammer on the outside ring at all.



-- Edited by DonSSDD on Sunday 7th of October 2018 06:04:07 AM

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic
Taylor55


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There is a tool that both removes and installs harmonic balancers. I borrowed it from a friend for the last 350 I assembled and it got the balancer 3/4 of the way on. A piece of 2"x4" and one shot with a big hammer got it the rest of the way.

Al

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Bill shuba


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Carl I like your idea of putting it on its end and than hammer it on,,as its on the stand right now,scary to think it might come off driving so drilling and tapping a bolt hole would make me feel a little less worryed but getting it centered for me is scary also,,,Thanks guys

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Bill shuba


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ok next I know its internally balanced My Factory pistons have stamped single numbers in their centers left bank ..9.9.0.9....right bank 9.11.9.9...are these because of different weights ? to make it balance...if so buying after market pistons ..would I need to get it all balanced with crank ..?

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4SPEED427


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I think you'll get varying opinions here.

I'll just say I've never experienced an issue with balance when replacing pistons. I've never had an assembly balanced.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Beaumont4008


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The 67 283 I have has the cranked threaded for a bolt but no bolt. I do not know the history Of the engine . The hole was full of dirt and grease and looks like it never had a bolt. Noticed it threaded when I cleaned out the centre of the crank snout. Could it be stock. 



-- Edited by Beaumont4008 on Sunday 7th of October 2018 04:51:25 PM

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4SPEED427


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Sure could be. I am trying to think if I've ever had a 67 283. Maybe they've all been older.

The parts book may tell the tale.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Prefectca


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Beaumont4008 wrote:

The 67 283 I have has the cranked threaded for a bolt but no bolt. I do not know the history Of the engine . The hole was full of dirt and grease and looks like it never had a bolt. Noticed it threaded when I cleaned out the centre of the crank snout. Could it be stock. 



-- Edited by Beaumont4008 on Sunday 7th of October 2018 04:51:25 PM

 I saw one also, but probably thirty years ago. The balancer didnt have a bolt but it was threaded. I thought a rebuilder may have drilled and tapped it as the crank was .010/.010. Also this crank was cast iron, not forged steel. 



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4SPEED427


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That's rare. I've heard of 283 cast cranks but never actually seen one.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Beaumont4008


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The one I have is cast  also . I think it's a 67 thing . 



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GLHS60


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283 CRANK INFO 1.jpg283 CRANK INFO 2.jpg

 

Thanks

Randy



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DonSSDD


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Thats a cool bit of info and history.

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic
4SPEED427


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Well that is VERY interesting. Who knew that not all 283 cranks and balancers were interchangeable. I sure would have lost money on that bet!

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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Taylor55


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Thanks for this information. I always wondered why some 283 engines had a harmonic balancer and some just had a small nub.


Al

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Bill shuba


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my 327 has only the TDC grove line in the balancer no other marks for before or after timing ? dont make sence to me ? going to be hard to set timing with my new L79 cam..I will check again with my glasses on but I really dont see any other markings ?...good news is my balancer as a center punch so I should be able to drill and tap a bolt

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4SPEED427


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There should be a timing cover tab with all the markings on it Bill.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Bill shuba


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Thanks Carl darn didnt even notice that when taking off cover I will have to take a looky see !

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hawkeye5766


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Carl Stevenson wrote:

There should be a timing cover tab with all the markings on it Bill.

 x2  Markings will be on the cover tab. Just make sure it is spot welded...not a bolt on tab. Pretty sure they were all spot welded to the cover back then.....bolt ons can change your timing. Can also throw it in the oven at 350 if not bolting on. Will expand and be a lot less effort to pound on the crank.



-- Edited by hawkeye5766 on Monday 8th of October 2018 11:39:57 PM

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