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Old 04-15-2013, 09:57 PM
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No timing tab...

On my 350 SBC there is no timing tab on the balancer, therefore a timing light can't be used on it currently.

Would something like this solve this issue? Or is there a better/cheaper way?
http://www.summitracing.com/parts/pf...0/media/images

Thanks guys.
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Old 04-15-2013, 10:33 PM
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Quote:
Originally Posted by fastnloud View Post
On my 350 SBC there is no timing tab on the balancer, therefore a timing light can't be used on it currently.

Would something like this solve this issue? Or is there a better/cheaper way?
http://www.summitracing.com/parts/pf...0/media/images

Thanks guys.
The first thing you need to do is determine TDC for cylinder #1. Then you can use a store-bought timing tab. Align the TDC mark on the tab to a line you make on the damper, or use the existing damper line.

Or you can make a temporary timing tape (or buy one). This will let you set the total timing w/o needing a dial back timing light. To use the timing tape you'd make or buy a timing pointer. It would be aligned w/the tape's TDC line.

Another option to keep from buying a completely new damper (unless yours is old and worn out) is to use a damper cover that has timing marks etched on it. Combine that w/an aftermarket or homemade pointer and you're all set.

There were several stock Chevy small block timing tab/damper line combos used through the years. Several of them are described here.

Last edited by cobalt327; 04-15-2013 at 10:39 PM.
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Old 04-15-2013, 10:40 PM
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Quote:
Originally Posted by cobalt327 View Post
The first thing you need to do is determine TDC for cylinder #1. You can use a store-bought timing tab or make one from a rigid piece of wire or metal. If you choose a store-bought tab, align the TDC mark on the tab to a line you make on the damper, or use the existing damper line.

You can make a temporary timing tape (or buy one). This will let you set the total timing w/o needing a dial back timing light.

Another option to keep from buying a completely new damper (unless yours is old and worn out) is to use a damper cover that has timing marks etched on it. Combine that w/an aftermarket or homemade pointer and you're all set.
Thanks for the help. If I bought that new balancer I linked above, would I also need to buy a timing tab?

My truck is an 82 c10, but I'm not sure how old the balancer is.
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Old 04-15-2013, 10:48 PM
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Quote:
Originally Posted by fastnloud View Post
Thanks for the help. If I bought that new balancer I linked above, would I also need to buy a timing tab?

My truck is an 82 c10, but I'm not sure how old the balancer is.
You'll need a pointer. A tab is usually used when the damper has only a line; the tab has the degrees on it for setting the initial timing, but a tab doesn't have enough degrees on it to set the total timing. That's why using a degreed balancer or tape or cover makes sense. Because the damper has the degrees marked on it the tab w/degrees is unnecessary, a pointer is all that's needed.

Info on removing/replacing the damper is here.
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Old 04-15-2013, 10:57 PM
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Quote:
Originally Posted by cobalt327 View Post
You'll need a pointer. A tab is usually used when the damper has only a line; the tab has the degrees on it for setting the initial timing, but a tab doesn't have enough degrees on it to set the total timing. That's why using a degreed balancer or tape or cover makes sense. Because the damper has the degrees marked on it the tab w/degrees is unnecessary, a pointer is all that's needed.

Info on removing/replacing the damper is here.
Alright, thanks. You mentioned there were several timing tab/damper line combos for the SBC over the years.

Do I need to know what balancer is currently in my truck to order a new one, or just get a SBC balancer like I linked above, and be good to go?
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Old 04-15-2013, 11:04 PM
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Quote:
Originally Posted by fastnloud View Post
Alright, thanks. You mentioned there were several timing tab/damper line combos for the SBC over the years.

Do I need to know what balancer is currently in my truck to order a new one, or just get a SBC balancer like I linked above, and be good to go?
Most aftermarket dampers have the "2 o'clock" line. Same w/the tabs. If you wanted to you can use a stock damper and tab like was originally used on your truck. Damper Doctor might be able to help w/a rebuilt damper, as for the tab I suppose you could look in the junkyard or try a Chevy dealer if it's a 12 o'clock setup. I'm not that sure what it is, though- you'll need to research this.
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Old 04-15-2013, 11:11 PM
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Originally Posted by cobalt327 View Post
Most aftermarket dampers have the "2 o'clock" line. Same w/the tabs. If you wanted to you can use a stock damper and tab like was originally used on your truck. Damper Doctor might be able to help w/a rebuilt damper, as for the tab I suppose you could look in the junkyard or try a Chevy dealer if it's a 12 o'clock setup. I'm not that sure what it is, though- you'll need to research this.
Alright, yeah I would rather just use the aftermarket damper and tab if it will work on my truck.
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Old 04-15-2013, 11:31 PM
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Originally Posted by fastnloud View Post
Alright, yeah I would rather just use the aftermarket damper and tab if it will work on my truck.
I missed that you have an '82. It probably uses the common 2 o'clock balancer- like you linked to originally. Don't know why but I thought the truck was newer (I think because of another thread I was looking at that had newer swirl port heads). So you shouldn't have a problem using that damper you linked to w/an aftermarket tab or pointer.
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Old 04-16-2013, 03:37 AM
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If your current balancer has a line scribed on it you could just bolt on one of these tabs and use your current balancer. You just need to know if its the small (6 3/4") or large (8") diameter balancer so that you get the right tab.
http://www.summitracing.com/parts/mr...make/chevrolet .

You will need to verify TDC so that you bolt the tab on the right bolts on the timing cover (its probably TDC at the 2 o'clock position), but that is a straightforward job.

Bolting on the new metal tab is a much simpler job than pulling and installing a new balancer.

Bruce
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