Okay so first thing first. 1999 chevy tahoe, 5.7 liter 4x4. I was doing a head gasket job and now I am a little stumped. I had it running but I could still hear some clattering in the odd side of the rockers/valves. sooo I took of the cover and did the manual adjusting and put it all back together.

Now the big problem, It wont start and it sounds a little whinny. Also its dumping massive amounts of fuel into the upper intake. Causing I guess you would call it blow back when i open the throttle. You can hear that it wants to start but won't. Please any ideas?

I double checked the plug wires they are correct, everything appears to be hooked back up correctly. If anyone wants I will happily give you my number and I can let you hear it first hand.

Jeff :runaround:

Sounds like the valves are too tight or grossly out of time. Back off the valve adjustment with each cylinder at tdc till there is a lttle play in the rocker arms, then use that as a starting point to see if it will fire, you did something wrong in this process. It was running till you tried to quiet it down, no?

Yeah, was running but was rough. took stethoscope and odd side was clattering away badly. So took it to TDC #1 and check and adjusted from there as per manual. I'll take it back off and see what happens. This is very frustrating considering I am not just a beginner DIYer.

Jeff

Try this adjusting the valves per this site.

http://www.classiccarauto.com/impala/how_to/adjust_valves.shtml

Thanks guys I found some Rocker Knockers after 3/4 of a day of searching got them adjusted and the truck is alive once again. Thanks for all the good advice.

Jeff