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68gmsee · 07-26-2012, 09:23 AM

You mentioned it fired right up when you first cranked it. Did it run for longer than a few seconds? If it did, then it's not the timing unless something broke.

I'd check the TDC again in case that happened. Make sure #1 plug is on the compression stroke by removing the plug and feeling for compression before rechecking.

If all that looks good again, check the fuel pump output into a plastic container -app 1 pint in 30 seconds or less or 1/2 pint of gas in 15 seconds.

Try pouring a little trickle of gas in the carb throat while cranking to see if it will run. Use care cause it may backfire through the carb on you.

07-26-2012, 09:23 AM	#5
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: 65 i6 230 help needed You mentioned it fired right up when you first cranked it. Did it run for longer than a few seconds? If it did, then it's not the timing unless something broke. I'd check the TDC again in case that happened. Make sure #1 plug is on the compression stroke by removing the plug and feeling for compression before rechecking. If all that looks good again, check the fuel pump output into a plastic container -app 1 pint in 30 seconds or less or 1/2 pint of gas in 15 seconds. Try pouring a little trickle of gas in the carb throat while cranking to see if it will run. Use care cause it may backfire through the carb on you. __________________ 68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...