1972 Dodge Colt

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Stan, when you finally get this thing right, you deserve a BIG shot of alkeehawl.
 
LOL.
It's just a process, not going to give up, that is for sure.
It's not like I am using brand new parts, right?
Gives me a new appreciation of the guys I followed when I was younger.
They would work on the road and didn't let stuff stop them.
BobGliddenArrow.JPG
 
HMMM, That does not look like a Slant six....I guess it's a V6...great work you're doing!
 
That epoxy repair may just be your pressure leak. I'd try to seal the chamber up with plexiglass on the surface, as well as the guide. Then fill the chamber with red dyed alcohol to see if it leaks, like CCing the chamber.
 
Wow....... that sucks!!

Just curious, how much bigger are the valves than the originals?
 
abdywgn said:
looks like the exhaust seat is sunk or just cut deep with that ridge right before the chamber. Was this a pre-ported picture?
Click to expand...
No the seat was cut for the new oversize valves.
Just hard to photograph.
This is what it looked like before the first run.
 
Demonracer said:
That epoxy repair may just be your pressure leak. I'd try to seal the chamber up with plexiglass on the surface, as well as the guide. Then fill the chamber with red dyed alcohol to see if it leaks, like CCing the chamber.
Click to expand...
No it's the leak. I can put my finger in the port and feel the air rushing out.
Really don't need another science project.
 
PRH said:
Wow....... that sucks!!

Just curious, how much bigger are the valves than the originals?
Click to expand...

Stock exhaust is a 1.36, this head as a 1.50 valve.
Stock intake is a 1.6, this head has a 1.80 valve.
IMG_2161.JPG
 
Porting Epoxy was gone when I pulled the valves.
There had been an attempt to weld the hole or holes, but missed the mark.
Here you can see the repair.
IMG_2168.JPG
 
WOW, I wonder how old that repair is. It looks like it's about time to use that peanut head I got for you. LOL
 
Epoxy and exhaust heat doesn’t usually result in a reliable long term repair.

“If it were me”, I’d probably(definitely?) scale back on the intensity of the porting on the replacement head.
Maybe have the exhaust valves cut down to 1.45-1.46 so one isn’t tempted to get too carried away.
 
PRH said:
Epoxy and exhaust heat doesn’t usually result in a reliable long term repair.

“If it were me”, I’d probably(definitely?) scale back on the intensity of the porting on the replacement head.
Maybe have the exhaust valves cut down to 1.45-1.46 so one isn’t tempted to get too carried away.
Click to expand...

Go Big or go Home!!!!

Yea, it is pushing it to go that big, that is why a lot of folks go with the 1.44 valve.
I have seen a lot of heads with these 1.5 valves and it works.
But if you are new to a slant head it is VERY easy to make a good day bad.
 
Of course the head was not finished this week.
Now they are saying Tuesday.

I was working a carb angle plate with a local machinist.
I found a Moroso 5 deg. sideways spacer on epay.
After I get the engine back together
I will see how this works on float levels.
Carb Spacer 5 Deg (5).JPG
Carb Spacer 5 Deg (1).JPG
 
Head is back.
Pressure test good.
Valves seats cut and surface shaved.
Shooting for 52 CC, I will check it tomorrow.
3rd Head.JPG
 
Lots of little stuff.
I had one block head bolt thread getting tight.
So I countersunk the top thread and that took care of that.
Put a plug in the dipstick hole.
Checked piston to valve clearance, twice.
Head checks out at around 52~53 CCs.
10.4 compression.
Could use more, but close on clearance with the flat tops.
Head is on and torqued.
3rd Head (3).JPG
3rd Head (4).JPG
 
Lots of rough luck but I admire your persistence. You’ll get there and that car will be awesome. Hell it already is.
 
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