Re: Restoring Rusty
 

now lets add some rubber to this metal sandwich, I give you the Greg-Pro custom gasket

we start off by making rubber and wood shavings this time

Re: Restoring Rusty
 

and here is one metal plate and rubber gasket done, that's as far as I got tonight, tomorrow I hope to make the opposite plate and block off the water cross over ports on the intake manifold side

the plan is to put some fitting in the water temp sending unit hole and pump it up with air through that, stay tuned

Re: Restoring Rusty
 

and so we pressed on and worked on the intake manifold side block off plates

still don't know how to transfer holes to plates so I just use cardboard, I'm sure there is some pokey thing you screw in the threads and tap with a hammer to leave an indentation I imagine, maybe some fabricators/machinists can advise

Re: Restoring Rusty
 

I made the rubber pieces next for the intake block off plates

Re: Restoring Rusty
 

and so I made the matching other side, I labeled them L and R just in case there was the highly unlikely chance that my custom CNC machine was a gnats hair off and they end up side spcific - hee hee

Re: Restoring Rusty
 

then it was time to rip one of them long pieces for the other long 20" bracket

needless to say that consumed an entire 4" cut off wheel

Re: Restoring Rusty
 

Gregski....digging your progress and long hours......in one of you photos I spotted your (what appears to be) OEM AM/FM radidio and said to myself....."self, ya won't know 'til you ask". Here it is, wood you wanna sell it? I'd love to have it for my 77 shorty.....thanks and keep up the great work. Its a fun read.
Mark, Portland, OR

Re: Restoring Rusty
 

oops.....almost duplicated...had to edit.

Re: Restoring Rusty
 

finished up the pressure tester plates today

Re: Restoring Rusty
 

and that's the bottom plate or the skinny plate or the outside of the head plate what ever we want to call it

Re: Restoring Rusty
 

so that leaves us with the pesky little side holes

Re: Restoring Rusty
 

we need narrow metal strips to weld in here to keep these at bay

we even bevel the edges to give the weld bead a valley or a groove to fill

Re: Restoring Rusty
 

Re: Restoring Rusty
 

Just throwing this out there but, could the 1.5 quarts you added be because some air worked it's way through the system and finally made it to the radiator? Then the 1/2 quart you added was just from the difference between a hot engine vs cold?


When you remove the heads this most recent time did you see any cylinder that was clean from ingesting water/coolant?

Did the engine over heat at all in those 200 miles? What was the operating temp?

I'm starting to wonder if you just like torturing yourself.

Re: Restoring Rusty
 

we had the gas on for the other side, nothing to write home about but these beads are much better, hey The Greg is learning ok - it takes practice you know

Re: Restoring Rusty
 

you know what they say: "Never time to do it right, but always time to do it over!"

Re: Restoring Rusty
 

ok plates all done

Re: Restoring Rusty
 

You should add that to your signature lol.

Re: Restoring Rusty
 

Prior to taking the heads of this time to do the rings I have been adding water to the radiator on a regular basis, like top it off then dive 90 miles to go camping, then top it off to drive home a few days later after the truck has been sitting in a forest for example.

Cylinders #3 and #5 looked cleaner than the others, but I dismissed it as something to do with the bad/broken oil rings - see pics below

No, runs at a steady 190° F

Ha ha, stop. I am troubleshooting / fixing an old 42 year old truck, this comes with the territory

Re: Restoring Rusty
 

got lucky with a pipe threaded adapter and a 3/8th barb 90° fitting, this will serve as the air inlet

Re: Restoring Rusty
 

What pressure do you plan to pump them up to?
What do you plan to put under the plate to seal the head deck?

Re: Restoring Rusty
 

I don't own an air compressor so a bicycle pump was the next best thing

pumped it up to 40 PSI

Re: Restoring Rusty
 

black 1/4 inch thick rubber, see pics above

radiator caps are rated around 15 PSI so at least that maybe more, what ever my system will hold without blowing the hose off, ha ha

Re: Restoring Rusty
 

Mix a small bottle of soapy water use it on all connections and leak paths. Check the whole thing so that way if its leaking through a seal you can explain why the gauge going down.

Re: Restoring Rusty
 

then it was time to submerge the head in some water

I may do a hot water test as well by dumping in some boiling hot water, but if the heads leak in cold water then there will be no need to go to that extreme