overheat issue strange

[chris91]

I had my truck parked for a few weeks to change the flywheel and starter. I got finished today. I got it cranked and not the temp goes to 200 really fast. I took the upper radiator hose off and no flow. the lower hose gets hot. The heat works.

Could this be a timing issue, I also get popping when I press accelerator, the truck cranks right up and rpm are correct. chevy 327.

[bama63]

check your thermostat most likely stuck closed

[A.T. RockDriller]

Chris...
Are you able to run it for a few minutes....or does this all happen too quick.
What I'm wondering is if you pinched a sending unit wire...
I just can't imagine, by the nature of your repair, how you could have disturbed the cooling system.
Not that gremlins don't exist..
And for the record...a severely advanced engine will cause an overheat condition.
However....you will usually have other problems...like hard starts...dieseling on shut-off.
And maybe even back popping ....like ya said.

[padresag]

did the distr hit the firewall when you changed the flywheel. is the distr cap ok or did it move the distr?
I remember years ago always taking off a sbc distr cap when removing an a/t. saved breaking them when you let the back of the eng down
ron

[chopper john]

thermostat

[chris91]

I just checked and the thermostat is good. After it cooled, I pulled the top hose off and let it run until the thermostat opened. It may be the timing advanced, but I dont have the hard start issue. I did remove the distributor so that is most likely the problem.

Thanks all.