[Tynan918]

What is the intention of PrintOSeal intake manifold gaskets ?

Are they for aluminum intake to iron heads, or iron intake to aluminum heads, or all aluminum set up...?

Also, I see a lot of these PrintOSeal gaskets, maybe even all, that don't have exhaust crossover openings and they block off the exhaust crossover ports...

Won't the hi temp heat burn right through the gasket or would that happen with a steel core center (s3 type) ?

 

[Tynan918]

If you live in a cold climate the exhaust heat cross over is very necessary

What temperatures are considered "cold climate"...? Below 30° ?

We are moving into winter weather here but I don't know if we're going to drop below 31° or not this year...

 

[Tynan918]

I leave one side of the crossover open for daily driver sorts of engines. Block the other side with 0.015 stainless sheet.

I might as well just put the restrictor plates on both sides if that's the case.

 

[Tynan918]

OK. That will cause the manifold to be hotter than if only one side is blocked. A restrictive exhaust seems to also increase manifold heating.

What issues do I get from intake heat?

 

[Tynan918]

Can cause problems with fuel percolation or vapor lock.

I have a heat insulator gasket between the carburetor and the intake.. would that lessen the heat issues ?

 

[Tynan918]

Ok guys here is a video I shot of the backside of my intake manifold...

 

[Tynan918]

I see blurry spots where there is silicone squeezed out and several where there is no silicone to be seen. Both are potential leakers.

That's what I seen too... I didn't feel for any oil on the block, but I'm at home today with the car and I can go outside and do a quick check on that. I did see that there is some older oil or grime from that area and where it meets the transmission bellhousing, (which is oddly shaped)...

 

[Tynan918]

I'll have the intake manifold taken off today...

I have the 1256 Fel Pro PrintOSeal gasket kit, but I don't have the new bolts or ultra black silicone gasket maker until tomorrow or Saturday, to put it all together.

So in the meantime, I will be removing rocker arms, pushrods, and lifters one at a time to inspect for any damage.

 

[Tynan918]

Okay I got the intake off and I need to remove the valve covers so I can remove the rocker arms, push rods, and lifters for inspection...

 

[Tynan918]

While removing the valve covers, I noticed on the passenger side rear near the exhaust manifold, was oily...the only spot on both valve covers with oil on it...same side of the starter.

 

[Tynan918]

I have 1 pushrod and rocker arm out, but the lifter seems stuck and I can't pull it out any further than this...

 

[Tynan918]

This pushrod had oil coming out of one side but not the other...seems rather dirty, should I clean it and how ?

 

[Tynan918]

I got the stuck one out finally...I got to go grab the rest of my PB Blaster and soak the rest of them and pull them out.

Here's the first one on the driver's side (cylinder 1)...

 

[Tynan918]

Is the lifter flat on the bottom?

Yes it's a flat tappet lifter... I'll need to go pull the rest of them out this morning, I only got that one out yesterday.

 

[Tynan918]

Placing a straight edge across the bottom the surface should be slightly convex, that is higher in the middle than the perimeter with a smooth gently bulging surface toward the center surface. This combines with a slight angle across the width of the lobe that causes the lifter to rotate in its bore. Anything else is grounds for replacement.

The one I have has a concave inside the perimeter on the side of the lifter where it meets the camshaft, and instead of bulging it sinks in slightly. There is a ring around this concave. I also seem to have two small pits in this lifter.

I'm currently uploading a video of the inspection of this lifter and once it uploads I'll share it here in the forum.

 

[Tynan918]

Placing a straight edge across the bottom the surface should be slightly convex, that is higher in the middle than the perimeter with a smooth gently bulging surface toward the center surface. This combines with a slight angle across the width of the lobe that causes the lifter to rotate in its bore. Anything else is grounds for replacement.

I shot a video of a visual inspection of the lifter that I have pulled out from cylinder number one and it looks to be the exhaust lifter. My Internet is slow so it's going to take about an hour for it to upload but I will upload it once it's uploaded.

It has two or three small pits at the end where it meets the camshaft. Also something I got on video, before I wiped it, look to be smears or streaks that ran long ways against the service of the end that meets the camshaft. There is also a ring inside the perimeter where it meets the camshaft, it's concaved slightly and it isn't bulging like you describe.

 

[Tynan918]

Used lifters need to go back on the lobe they were mated with otherwise the wear rate goes insane.

That was going to be my next question, my rocker arms and push rods are very dirty with black semi hardened grime. Some of the rocker arms were hard to pull off because the bearing kept getting caught on the stud. Some of the push rods required some effort to pull out and only a certain number of those push rods was leaking oil from the holes and I made sure I checked both holes of every push rot that I pulled out as I was pulling it out.

The pushrods are not bent from what I can tell without a straight edge. I think they just need to be cleaned real good.

From what I understand the only thing that needs to be placed where it was pulled from is the lifters, meaning I can take these rods and rocker arms and soak them in Pine-Sol for several hours and scrub them down and clean and unclog them with a steel scrubber ?

 

[Tynan918]

soon it will be decision time.
You’ll need to decide if it’s total tear down, clean and rebuild time or ignore all the symptoms, bolt it back togethor and drive.

Yep, it's almost "judgement day"...

I'm preparing for teardown cleaning and rebuilding what I can with the motor in the car...or even possibly buying a hoist and stand for the long haul...I'll need to throw everything back together and drive it or tow it to my grandparents to do this job.

We won't know officially I guess until I pull the rest of these lifters, check them out, and use a flashlight to see the cam lobes and their condition.

I'm guessing the lifter I pulled is showing bad signs ?

 

[Tynan918]

Good luck.

Stay with me here until I get everything pulled out and checked please...

Coming up with that kind of money and making those kind of plans is going to be a lengthy process and I want to make sure this is what I need to do before I start saving up money and making contacts to initiate that plan.