47-59 VIN & Block Numbers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Rickysnickers** · 09-23-2022, 09:38 AM

Sounds like there might be an issue with the balancer. If it's old, it could have rotated enough on the rubber ring that it would cause any timing reading to be way off.

**mr48chev** · 09-23-2022, 01:40 PM

Quote:

Originally Posted by Rickysnickers

Sounds like there might be an issue with the balancer. If it's old, it could have rotated enough on the rubber ring that it would cause any timing reading to be way off.

There is always that chance on that style of balancer that is two pieces with the rubber and nothing else between them. Just as there is the chance that the outer ring will come of on it's own. I've seen that and the carnage involved a couple of times. I also had a guy bring me the two parts and the rubber sleeve years ago after he had used one of those three arm gear pullers to pull the damper off and turned it into a real two part damper. He was wanting to know if we could put it back together.

Back to the subject at hand, Sammy 4358 is most likely going to have to find TDC on number one using traditonal methods and then see where the mark on the damper is and if it is at 12 O'Clock or where ever and go from there.

Sammy4358 · 09-30-2022, 02:33 PM

OK, I took out the distributor, plugs and wire. Got a TDC whistle and located TDC on the number one cylinder on the compression stroke. The old timing mark was about 1/2" to the left of the timing flange. Put new mark on the balancer, set it at 10degree put back the distributor, plugs and wire. Started the motor and was only hitting on maybe three cylinders, had to turn the distributor counter clockwise about two inches to make it run somewhat smoothly. Put on the timing light and the new mark was at about 12:00, way away from my TDC location. It still runs rough like it has an oversized cam and when I put it in gear at idle she tries to stall. Could the motor run if the timing chain is one tooth off?I don't know if the problem is in the timing or Carburator. I have a Holly 4 barrel but the intake manifold has just two rectangle intake holes and the carb. is setting on top of a spacer with the 4 holes.

09-23-2022, 09:38 AM	#1
Rickysnickers Senior Member Join Date: Oct 2014 Location: Eagle, ID Posts: 3,153	Re: VIN & Block Numbers Sounds like there might be an issue with the balancer. If it's old, it could have rotated enough on the rubber ring that it would cause any timing reading to be way off.

09-30-2022, 02:33 PM	#3
Sammy4358 Registered User Join Date: Feb 2018 Location: Athens, TN Posts: 62	Re: VIN & Block Numbers OK, I took out the distributor, plugs and wire. Got a TDC whistle and located TDC on the number one cylinder on the compression stroke. The old timing mark was about 1/2" to the left of the timing flange. Put new mark on the balancer, set it at 10degree put back the distributor, plugs and wire. Started the motor and was only hitting on maybe three cylinders, had to turn the distributor counter clockwise about two inches to make it run somewhat smoothly. Put on the timing light and the new mark was at about 12:00, way away from my TDC location. It still runs rough like it has an oversized cam and when I put it in gear at idle she tries to stall. Could the motor run if the timing chain is one tooth off?I don't know if the problem is in the timing or Carburator. I have a Holly 4 barrel but the intake manifold has just two rectangle intake holes and the carb. is setting on top of a spacer with the 4 holes.



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