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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Rapid Roy on October 28, 2017, 07:14:31 pm

Title: Timing Issue.....I think.
Post by: Rapid Roy on October 28, 2017, 07:14:31 pm

74 C10 350 TH350. Stock (original) engine. Upgraded OEM points distributor to HEI. I removed coil, cap and wires. Turned harmonic balancer mark to 0. Checked where rotor was pointing before removing old dist. It was pointing to #6 plug. From info I have found, it should point to #1. Installed HEI and set rotor to point to #1 and would hardly run with dist turned all way counter clockwise. Is this a timing issue with cam and crank?

Title: Re: Timing Issue.....I think.
Post by: FlatBlack77 on October 29, 2017, 08:38:52 am

did you start it then turn the distributor by hand to see if you could find a spot where it ran good? at least to keep it running while you time it with the light

Title: Re: Timing Issue.....I think.
Post by: VileZambonie on October 29, 2017, 09:22:22 am

If you didn't rotate the crankshaft another full revolution and left everything the way you took it apart, then you put the distributor in 180° off. You should have put the distributor in pointing at #6 if that was where you removed it. You were on TDCC #6 cylinder.