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Unread 03-13-2013, 07:40 AM   #1621
matthewleeblair
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I'll pray for you brother.

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Unread 03-13-2013, 10:45 AM   #1622
Dadamsnv
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Good luck Scott! I know how it feels.
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Unread 03-19-2013, 03:14 PM   #1623
MoC
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Well I am at a total loss now.... National went through the carb again today and stuck it on their test engine with their cut out gasket they test on. The carb runs great and idles smooth at 650 rpms.

Here is a video they sent me of it running with their gasket.

http://s1238.photobucket.com/user/Us...21b46.mp4.html

They then swapped in my factory gaskets. Guess what... Didn't run right. They could not get it to idle below 1000 rpms. He could not find any vac leaks around my gaskets and checked several times. They are now at a total loss of why it will not run now as well...

When I was trying to get it to run I went through 2 plastic spacers and 5 sets of paper gaskets and the thick isolator gaskets so I am sure it is nothing specific to the gaskets themselves. Only 2 companies make the gaskets and I tried both of them.

So they are now checking two see if they have any AMC 2150 cores to rebuild and try with the factory AMC gaskets.

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Unread 03-19-2013, 03:23 PM   #1624
MoC
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anyone have a AMC 2150 1.21 from a waggy 360?

Just in case National does not have one...
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Unread 03-19-2013, 06:09 PM   #1625
OrangeCJ-5
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Wonder why that is? What is special about their gasket? Sorry but someone had already taken the carb off the junkyard Waggy engine I got. Otherwise you could have had it.
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Unread 03-19-2013, 06:15 PM   #1626
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Would it be worth using a very light coating of sealant between the carburetor and gasket?
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Unread 03-19-2013, 06:20 PM   #1627
MoC
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Quote:
Originally Posted by OrangeCJ-5 View Post
Wonder why that is? What is special about their gasket? Sorry but someone had already taken the carb off the junkyard Waggy engine I got. Otherwise you could have had it.
A gasket is a gasket as long as it does not leak right? They said the factory gaskets did not leak and they checked.

The only differance I can think of is the gasket they use is only around 1/4" and the AMC ones together are around 7/8". I cant imagine that that would make any differance...
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Unread 03-19-2013, 06:21 PM   #1628
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Would it be worth using a very light coating of sealant between the carburetor and gasket?
No sir. Sealant is a bad thing the gas will slowly break it down. Plus they checked and there are no vac leaks from the gaskets.
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Unread 03-19-2013, 06:35 PM   #1629
ASteve
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Would the height difference make a difference?

Why not try and get closer to 1/4" to see what it does...just a wild guess...

SC
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Unread 03-19-2013, 06:55 PM   #1630
MoC
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Quote:
Originally Posted by ASteve
Would the height difference make a difference?

Why not try and get closer to 1/4" to see what it does...just a wild guess...

SC
I can't imagine the height would make a difference. People put 1" - 2" spacers on 350's for performance without issues. The amc spacer is designed to insulate the carb from the engine so the fuel does not boil. The older ones like yours Steve are spaced up off the manifold about the same amount with the metal spacer and gasket.

I just can't imagine what it could be. It's all factory setup and installed on every jeep waggy 360 ever made and it runs on them.
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Unread 03-19-2013, 06:58 PM   #1631
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I hear ya, but that's just weird what National found out with the use of theirs vs yours...

SC
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Unread 03-19-2013, 07:11 PM   #1632
MoC
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I hear ya, but that's just weird what National found out with the use of theirs vs yours...

SC
It is very strange...


Maybe Ill just push it all in the street and burn it.

Unlike the original one that broke, I have never seen this carb on a running 360. It came off a 85 grand waggy 360. It seems to be the carb the engine came with. Its a later model amc 2150 carb, judging by the external power valve hook up, and it had all the factory gaskets on it.

The 2150 that broke had the exact same base as this one. I compared them and they were matches.



I appreciate the questions guys, keeps me thinking...
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Unread 03-19-2013, 07:24 PM   #1633
OrangeCJ-5
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So...would they send you the carb with a set of their gaskets to see what happens?
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Unread 03-19-2013, 07:29 PM   #1634
Matt1981CJ7
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MoC,

I came across this discussion on 2150 idle problems.

One post suggested blocking the vacuum port to the chock assembly. (see pic below)

I'm wondering if the difference in gaskets relates to this vac port......?

Matt
vacuunchoke6yc.jpg  
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Unread 03-19-2013, 07:55 PM   #1635
MoC
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Quote:
Originally Posted by OrangeCJ-5 View Post
So...would they send you the carb with a set of their gaskets to see what happens?
Quote:
Originally Posted by Matt1981CJ7 View Post
MoC,

I came across this discussion on 2150 idle problems.

One post suggested blocking the vacuum port to the chock assembly. (see pic below)

I'm wondering if the difference in gaskets relates to this vac port......?

Matt
The gasket they test on looks just like the old style gaskets from the early 70's AMC v8's like Steve has. I looks like they make them by tracing a template based off the old style.

Matt,

The one they make and the factory one both cover up the base of the carb completely and have the same cut outs. Both over the choke vac source the same

Orange,

The problem with running just the gasket that they make is the fuel in the carb can boil from the engine heat. The AMC's and Ford's used a spacer / isolator plate between the manifold and the carb to keep the heat away. With the AMC its 3 separate parts.

Just hope they have another 2150 core they can rebuild that will run.

I just cant get past the fact that its all factory and should work. It not like I am piecing together different parts.. Should run with what it came from the factory with..

It doesn't make sense.... They found no vac leaks, no problems and the only difference is less that 1/2 a inch in height...
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