Tdc - The 1947 - Present Chevrolet & GMC Truck Message Board Network

2bits · 10-06-2007, 01:41 AM

OK, I just dropped in a freshly rebuilt 250 with a 292 head and I am trying to find TDC, to stab the dizzy, but I drop a cloth in the #1 cylinder and every time I bump the starter the thing flies out so that's not guiding me like it has in the past. I am wondering if I just watch the cylinder through the hole (I can see clearly) and when the piston is at the top and the timing marker hits at the timing mark, I should be right on or 180 off right? Anyone had this problem? Any other suggestions? The last time I did this it would wait until it was on the right stroke and then pop out, but now it pops right out every bump! Maybe my starter turns too fast?

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10-06-2007, 01:41 AM	#1
2bits Registered User Join Date: Jan 2006 Location: Dallas Posts: 504	Tdc OK, I just dropped in a freshly rebuilt 250 with a 292 head and I am trying to find TDC, to stab the dizzy, but I drop a cloth in the #1 cylinder and every time I bump the starter the thing flies out so that's not guiding me like it has in the past. I am wondering if I just watch the cylinder through the hole (I can see clearly) and when the piston is at the top and the timing marker hits at the timing mark, I should be right on or 180 off right? Anyone had this problem? Any other suggestions? The last time I did this it would wait until it was on the right stroke and then pop out, but now it pops right out every bump! Maybe my starter turns too fast? __________________ _______________ Thomas '78 Silverado '74 Monte Carlo '47 Teardrop Trailer East Texas Classics Local Club



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