Thanks for the reminder, I had intended to include photos. That is correct, or rather the coolant journals are greatly reduced in the head gasket vs the head and block. In my looking for replacements I couldn't find anything which matched the porting in my head/block, they are all the same as what was on this engine...
Maybe done to control/limit flow? Is the gasket the metal layered kind? Seems wacky to design it that way when a chunk of gasket could break off and clog something.
Agreed about it being an odd design, limiting flow is the only thing we can come up with also, maybe Cylinders 2 & 3 are more prone to heat problems so they get more flow accordingly. Just got the engine back in the truck, I have just one Vacuum line I'm not 100% sure of (and why I'm on the forum looking around)
I take that back... my vacuum lines are a mess. I've found the diagrams but they all seem to have a "modulator" valve that I don't seem to have - and at least half my "plumbing" is different than what's shown...
ok Using this diagram (2nd page) and photos from this post I was able to things down a bit I think (on paper at least) - but I have a few questions... First off, I've cleaned up the diagram and removed bonus/not relevant information. I then matched the filter/check-valves that I could with the images for the post. I greyed out what I don't seem to have and what the OP doesn't have from their images as well. Then I get to where I have a few questions...
Part of my confusion ended up being because there was a port broken off on the temperature controlled vacuum port switch thing on the block.... fortunately I'm a hoarder and I had some vacuum lines from an old VW Cabriolet, one of which conveniently had a broken off nipple in it. The drill-bit is there acting as an alignment dowl, it's not fast setting epoxy (panel-bond) so it will hopefully hold-up for me....
