CK5
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1972 Buick Skylark

The instructions had a pro-tip to install the PCV valve before install the intake. I didn't want to wait another day on the PCV so we installed the intake without it. I quickly learned why they gave that tip. I pushed the grommet into the engine trying to insert the tightass PCV. Luckily it landed on the valley pan and I was able to fish it out. The second time I was more careful and managed to get it installed without losing the grommet again.

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Doesn’t every mechanic use Vaseline?

John Deere sells dish soap for installing cylinder liner o-rings. I don’t remember if they have their own petroleum jelly.

Martin
 
I did squirt it with some lube. I think that's why it popped all the way thru easier than I expected. I used a round punch to try and open up the hole a little more and seat the grommet better.

It is hard to discuss this subject without it sounding inappropriate.
 
Chalk this one up to "learn something new everyday". I'd never seen a "jiggle pin" before. When I pull the thermostat out of the box I thought it was some strange leftover junk from manufacturing.

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Later after I was done putting it in, I decided to read more about the jiggle pin and learned it's supposed to be installed in a specific direction. Typically it's 12 o'clock, but some manufacturers specified different orientation. Note I said I learned this AFTER installation. I know I put the thermostat in such that the jiggle pin is either at 12 or 6 o'clock.

I already refilled the coolant, so I'm debating if I think it's important enough to pull the top radiator hose and figure out if I got it right. The image in my head says I put the jiggle pin at 12, but that could be tainted by wishful thinking.

Also, I must say I'm not a fan of the vertical thermostat position.

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I was having a hell of a time getting bolts started without the housing getting way out of position. Luckily I had some carb studs that helped immensely. It was still a bit of a fight getting my mitts in there to install the nuts. On top of that, there's the bypass hose to fight with as well. I could have made life easier and installed the bypass hose on the housing before putting it on the manifold.
 
For that t stat housing 12 oclock is the correct direction. It allows air bubbles to escape from behind the t stat, Then stop coolant from flowing when t stat is closed.
I always drill a hole if jiggle pin isn't a feature on new t stat.
 
In all the thermostats I've touched, this is the first time I've seen the jiggle pin. I think most of

I'm going to pull the hose and check. I'm hoping that if I have it wrong, I can use a pair of pliers thru the hose connection of the housing to spin the thermostat, even if I just have to crack the fasteners a little loose.

2nd time doing it will be easier!
When I was fighting it last night I was thinking that at least now I know the tricks. Probably surprised my son with the angry mechanic throwing bolts. At one point I had grabbed a metric bolt mixed in with the standard bolts and when I figured out why it wouldn't thread in, I violently threw it at the trash can. :doah: "Why the fck is this bolt even in there!" :haha:
 
On t stats housing that are vitical, I always use Gaskacinch to glue the t stat into the hose side with gasket. it will hold well enough to get the bolts in and tightened.
 
The 50/50/90 rule was in full effect. I had the giggle pin installed at 6 instead of 12 o'clock. At least Dave was right, and the second time around was a lot quicker than the first time. Should be able to light this thing off when I get home from work.
 
Its running great! Next up we're doing ignition tune up; converting to electronic distributor, plugs, wires, etc. I wanted to get it running with the current distributor so if we have any trouble after the ignition stuff, we know where to start checking.
 
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