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Wilson's 1986 k5 blazer build

Okay so today I got the tranny completely in and bolted up. Put in a new transmission mount. I opted for the rubber one because more vibration isn't what I want and it's so easy to change in the future anyways. Got alternator, power steering, and a/c all on the brackets. Also put in new ac delco spark plugs which I gapped at the .035 spec. After that I put in the headers. To do list: I need to figure out how to adjust valves(input appreciated and dumb down info for me), hookup tranny lines and get the tv cable set, install m/t valve covers which may require me to remove a/c to get them on the drivers side, do gas lines, install distributor and put on the plug wires and after all of that I will be VERY close. Here are some pics from Tuesday and one from yesterday at the lake
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Yeah haha:doah: Well today so far I have replaced a ujoint on each the front and rear driveshaft and installed those. The rear shaft ujoint has a clip on the inside that I didn't see so I was beating on it for over an hour trying to get it out. Pulled the clip and it came out after a few blows...Well now I am looking up how to adjust my valves and then I am going to do that. Not a whole lot left other than wiring and installing the distributor and a few lines which is getting me really excited
 
Okay after this whole week I have done everything but get it started:doah: It just backfires out of the carb...I would think I am 180 out but I have lined up the mark 5 times, stab the distributor and it still just turns over and pops really loud...Suggestions?
 
Adjusting the valves I put it at TDC and went through the firing order turning the harmonic balancer 45 degrees at a time. I believe I did that correctly. I stabbed the dizzy 4 or 5 times at the mark so unless I am really unlucky I must have had it on the compression stroke one of those times. It was backfiring through the carburetor and my brother says that means the dizzy had to have been off for it to do that. Another problem was that there was a bad intake leak. I filled the radiator and water started seeping out from the intake. I redid that gasket but water got into the oil. I will have to replace the oil now also...not a big deal at all unless the water got in through a blown head gasket or something
 
You adjust the valves at 90 degrees not 45. It takes 2 complete revolutions to complete the firing sequence. 2 revolutions are 720 degrees, divide that by 8, you have 90 degrees between each cylinder at tdc in the firing order. ;)
 
If it's backfiring out of the carb.. It's 180* off I'm willing to bet
 
Set it at TDC on #1 or #6, adjust half the valves, roll the engine over one complete rotation, adjust the other half of the valves.

Martin
 
82355 said:
Set it at TDC on #1 or #6, adjust half the valves, roll the engine over one complete rotation, adjust the other half of the valves.

Martin
Click to expand...

That's pretty vague, which half of the valves?
 
I have it written down on a piece of paper in my toolbox, I don't remember off the top of my head. I am sure a 10 second Google search would find the answer.

Martin
 
Yes, its at first glance a random half of the valves. But there is a sequence of it. What I always did was soak the lifters in oil overnight, put them all in. Tighten half till the pushrod has a touch of drag turning it and no movement up and down and go a half turn past that. Tighten them down and warm it up and recheck them once more. And obviously do the other half before warmup. That will get you ballpark.
 
I set it at the TDC mark 5 times so I am pretty sure that it wouldn't have been 180 out each time. I could have easily adjusted the valves wrong, so I guess I have to redo that. The youtube videos are vague and don't make much sense to me. Does anyone have a website that shows how this is done that makes sense to them?
 
When you set it at TDC watch the rocker arms on the companion cylinder (#6 on a SBC) for rock over. Rock over is when rocker arm is finishing closing a valve, and one rocker arm (on the same cylinder) is starting to open a valve. If #6 is in rock over at TDC, that means #1 is at TDC fire. That is where you want the engine when you drop in your distributor.

Martin
 
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