intake/exhaust mounting, what am I missing?

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Dne007

Dne007

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Won't be terribly long I'll be installing my intake/exhaust manifolds. I'm just wondering if I have everything(bolt wise, etc) some of the studs are shorter. What do I need and is there How to for installation?
As always, a big :thankyou:

Of course I still need to clean them up
intakeexhaust studs.jpg



Just temporarily bolted together
intake studsa.jpg


13 holes
intake studs.jpg
 
For sure you are missing three standard nuts (top row), and one each of the cone washer and goofy tapered castle-nut looking nut (middle row, right side). IIRC working on my feeble memory only, there is a somewhat oversize brass washer that goes on the top middle stud, you are missing that too.

I can't get outside to refer to my books so I'll let someone else weigh in on the studs and where they go. You are showing 14 studs but you only need 13 total. Be aware a couple of these go into the water jacket so the studs need to get sealant on them before installation.
 
Can you give us the casting number and possibly the year of the exhaust manifold.
 
From what I see, you're missing a nut like the castle nut on the right and the two brass washers that go on either end of the exhaust manifold. They have an inside bevel on one side that the castle part of the nuts fit into. Also, when you install the bat wings, it's imperative that you don't allow them to touch the manifolds other than where they tighten up against the manifold. If that makes sense. Only 10 - 15 LB FT on torque. THey don't need much. Lastly, when you install the studs into the heads, use some sort of sealer. Some or all of the stud holes go into the water jacket. I've seen some have all the holes into the water jacket and some have a few blind holes. I use RED high temp RTV, because it seals and also acts as a anti seize and does not allow them to rust into the head. That's what I use and it's always worked for me.
 
I also fully endorse the Remflex gasket. While they are very fragile, and they do not hold up when removed, they are the best sealing gasket out there.
 
I have no clue what year it came out of, it had a 3 speed manual transmission attached, like on the column shift.

intakeexhaustb.jpg


intakeexhaust.jpg
 
As for fit, year doesn't really matter much. I can tell you though that's a later model exhaust manifold as it has the reinforcement ribs on it. I have a couple or three that don't have those because they 1960s model manifolds.
 
Gee Rusty, you're a wealth of information:thankyou:

So where do I find these things?
"a nut like the castle nut on the right and the two brass washers that go on either end of the exhaust manifold."
 
Rat cheer.

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Question for Rusty:
The exhaust manifolds from the mid 70's and latter used thicker triangle washers and slightly longer studs.
Would you want to use some of the thin and thick triangle washers on the same manifold?
 
townsend said:
Question for Rusty:
The exhaust manifolds from the mid 70's and latter used thicker triangle washers and slightly longer studs.
Would you want to use some of the thin and thick triangle washers on the same manifold?
Click to expand...
"I" would not. I don't think it would hurt a thing, but I'm particular about stuff like that. I would want to use a matching set. But for no reason other than it being a personal choice. WIth only 10-15 LBFT, I think the thinner set would work just fine.
 
The question was related to the three fasteners that hold the intake to the exhaust manifold.
The center fastener on the exhaust manifold was a 5/16 bolt on the 1972 and earlier years.
1973 and latter used a 3/8 stud in that location.
Just curious about which exhaust manifold was being used.
The photos in post 8 answered that question.
Both manifolds are post 73.
 
townsend said:
The question was related to the three fasteners that hold the intake to the exhaust manifold.
The center fastener on the exhaust manifold was a 5/16 bolt on the 1972 and earlier years.
1973 and latter used a 3/8 stud in that location.
Just curious about which exhaust manifold was being used.
The photos in post 8 answered that question.
Both manifolds are post 73.
Click to expand...
Really? Then why did she post a picture of the manifold to cylinder head hardware and ask "what am I missing?" She posted a picture of what she was talking about. I thank you you for that information though, because I was not aware of the year break when they changed to the later style manifold and that inside most stud. Thanks.
 
RustyRatRod said:
Really? Then why did she post a picture of the manifold to cylinder head hardware and ask "what am I missing?" She posted a picture of what she was talking about. I thank you you for that information though, because I was not aware of the year break when they changed to the later style manifold and that inside most stud. Thanks.
Click to expand...
Me too. I thought that split was later
 
3/8 center stud first appeared in the 1973 Chrysler parts catalog part number 152568.
Exhaust and intake manifolds changed in 73 to accommodate the newer size fastener.
This was covered by Doc (Doug Dutra) way back in January 2010 over at Slantsix.org
Chrysler was having problems with the thin triangle washers #2206416 as seen in the 1972 TSB chapter 11.
You can find this at Hamtramck Registry.
Evidently the TSB solution was to time consuming so new thicker washers were released.
A manifold fastener package was available in 1973 that included all the thicker washers: #3744826.
 
Hi, thanks for all the super information! I'm assembling the intake/exhaust, not permanent by any means. I had this intake/exhaust manifold shipped to me from a ways off. The intake and exhaust were jarred, not lined up, so that gave me reason to separate them to clean/paint.

There's a slim gap, very slim between the intake/exhaust. Perhaps someone along the line drilled out the hole next to the two barrel size, it's a 5/8 bolt and doesn't fit the new inbetween gasket hole. The pics are about as close to alignment as I can get. I'm hoping the new "good gaskets" will take up some of the slack. There's very little wiggle room between the int/exh manifolds.

A few of the pics are with the engine laying over further than 30 degrees, making it easier to temporarily install. I'm still going to have to source a few things. Mainly the front/rear exhaust things/washers, and the middle brass washer for the intake.

The studs are just screwed in finger tight~ I'll remove and seal a little later, I was just making sure they're long enough, some did seem shorter.

Though the machine shop "shaved" the intake/exhaust head, still didn't get down to take out the deterioration of the thermostat surface. I had cleaned and put on JPweld, and still need to fill a tiny spot.
intake.jpg


intakea.jpg


intakeg.jpg


This 5/8 bolt going into the exhaust manifold isn't very deep, I'd say 3/4-1" deep, so I had use washers to bring the gap between the intake/exh closer together
intakef.jpg


intakee.jpg


Am I suppose to plug this egr hole?
intaked.jpg


intakec.jpg


intakeb.jpg


intakei.jpg


intakeh.jpg
 
Last edited:
The washers are just there, I'll make it look better upon final mating of these two.

intakem.jpg


intakel.jpg


There is no head gasket nor intake gaskets (however there's a sheet of heavy duty plastic to keep stuff out, and, held together lightly and will be disassembled as soon as I get the go-ahead from you guys;)
intakek.jpg


intakej.jpg
 
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