So I finally did it. I ordered a new Cam, lifters, springs and timing set for my newports 383! I know I need to pressurize each cylinder as I release the springs so I dont drop a valve but cant find a good manual to walk me through..... any thoughts? suggestons? tools I will need to pick up?

Thanks,

Gary

 

An alternative method is to feed a short length of rope in to the spark plug hole (with a large knot on the end so you don't lose it in the hole!) and rotate the crank by hand until the piston/rope holds the valves up. Rotate it a hair backwards after and the rope pulls right out.

 

http://www.proformparts.com/product-...ategory_id/171

http://www.eastwood.com/kd-tools-uni...ssor-2078.html

The rope trick or clean piece of vacuum tube works great. The second tool shown I've used many times, the first one I built myself.

 

I'm assuming you feed a fair amount of rope in?

 

Did you modify a pulley puller to make one of these?

 

Not really. Maybe a foot or so of 3/8 rope, when you rotate the crank you'll feel it when you have enough. Kind of depends on the thickness of rope you use. Whatever you choose, make sure it's soft and limp.

 

So im finally far enough into this project to pull the springs and i bought the fitting for my air compressor to avoid dropping a valve.

When I hook up the air hose and put air through it I can hear air getting out somewhere but I can not tell where for sure. I have pulled the rocker arms, push rods, lifters intake etc. It seems like the air is going out through the top of the head but I tried 4 different cylinders and had the same result.

Thoughts?

 

Same thing is happening to me I am doing the same thing. But it did hold the one we tried. I was thinking of a heavy duty magnet stick to put on the top of the valve while the spring is compressed.

 

I ended up going to the extent of pulling my heads and taking a look at them. almost all of my exhaust valves were sticking open a bit. Found major head damage and ended up replacing my heads. I would go the extra step while you are in there but make sure you take them to machine shop you trust.

 

So how dose it run now 70newport?

 

Dont know quite yet.

I will hopefully fire it up next weekend. Im hoping it will rum awesome. My small low budget upgrade has taken off and I now have TTI headers on order too so Im hoping the 84cc Heads arent too much for stock pistons and that there is a small glimpse of a monster under the hood for this summer.

 

TTI makes a great header for us Mopar Guys.... Good Choice....
I beat them up 2 times a year at there booth about them and there keeping a great quality control....

 

Thanks,

I have always heard great things about TTI so they were pretty much the only option I was considering. Ill post a video of it running as soon as it fires. It will be loud with open headers but should be fun for the day.

 

You need to get each cylinder up to it's respective TDC. Mark the balancer at 90 degrees with chaulk, etc Air escaping (you DO? have the rockers removed??) means either unsealed valves (air in intake or air in exhaust) or bad rings / broken cylinders (air in oil filler, air bubbles in radiator)