vacuum advance question

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CopenhagenCowboy
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Location: Kennewick WA

vacuum advance question

Postby CopenhagenCowboy » Fri Jun 15, 2012 12:27 pm

On my 258 with a Rochester 2g carb should the va be ported or constant vacuum?
"a road is merely a suggestion" "Your ricers not so fast with a Jeep on it" "When was the last time you got an adrenaline rush at 3mph?" "Jeeps dont leak, they just mark their territory"
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Grumpy
Peak Putters' Land-Use Coordinator
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Postby Grumpy » Fri Jun 15, 2012 12:45 pm

Ported...
Dave
Have Scout, will wheel...Someday...Maybe


Quote:
Originally Posted by Oregon80
-By driving a Scout, you my friend have recycled, which is more than those pansy Prius owners can say.
-I love driving a piece of history that was nearly lost.
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CopenhagenCowboy
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Location: Kennewick WA

Postby CopenhagenCowboy » Fri Jun 15, 2012 1:25 pm

There is NO ported vacuum on my carb, unless its malfunctioning. It's been set up this way for a long time and haven't had an issue, but after I drive for a bit it starts to idle really low and die eventually. Messed with my timing and idle speeds but nothing seems to make a difference. Didn't find any vacuum leaks, messed with fuel pressure, can't seem to figure it out.
"a road is merely a suggestion" "Your ricers not so fast with a Jeep on it" "When was the last time you got an adrenaline rush at 3mph?" "Jeeps dont leak, they just mark their territory"
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Grumpy
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Postby Grumpy » Fri Jun 15, 2012 1:40 pm

http://www.tocmp.com/manuals/Carbs/Roch ... 73__2G.htm
Dave

Have Scout, will wheel...Someday...Maybe





Quote:

Originally Posted by Oregon80

-By driving a Scout, you my friend have recycled, which is more than those pansy Prius owners can say.

-I love driving a piece of history that was nearly lost.
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OldGreen
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Postby OldGreen » Fri Jun 15, 2012 1:54 pm

Nice work Grumpy!!
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Grumpy
Peak Putters' Land-Use Coordinator
Peak Putters' Land-Use Coordinator
Posts: 6049
Joined: Wed Mar 14, 2007 8:38 am
Location: Kennewick, WA

Postby Grumpy » Fri Jun 15, 2012 2:02 pm

Needed it for Steve way back when we started...
Dave

Have Scout, will wheel...Someday...Maybe





Quote:

Originally Posted by Oregon80

-By driving a Scout, you my friend have recycled, which is more than those pansy Prius owners can say.

-I love driving a piece of history that was nearly lost.
Top
Wrench
Peak Putters Member
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Location: in a van down by the river

Postby Wrench » Sat Jun 16, 2012 5:06 am

Sounds like the idle circuit is running too rich (too much fuel). A rich condition helps on warmup, but hurts at operating temp.

Make sure your choke is operating properly (fully open when hot) before you start changing fuel adjustments elsewhere.
Paul
'84 XJ, '19JL
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