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  #21  
Old 02-08-2009, 12:59 PM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by Ristow

D is ported vacuum, E is manifold. i highly suggest you take the time to tune the distributor for manifold vacuum,it'll run much crisper.




Can you elaborate a bit on ported and manifold vacuum, and especially on how to tune the distributor for manifold vac? I am running the stock distributor until I get everything back to good working order, then swapping in a Mallory HEI. I was trying to eliminate variables for possible problems by making less changes at one time. Based on that, does that change anything about tuning the distributor?
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #22  
Old 02-08-2009, 08:34 PM
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shiner2001 shiner2001 is offline
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From looking more at my old manifold set up and in the manual, it looks like A goes to the 5 way vacuum fitting that is attached to the same fitting that the rear heater hose is (visible in the bottom of the ABC picture). Nothing was disconnected from the ball on teh firewall directly behind the manifold...I'm so confused.
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #23  
Old 02-08-2009, 09:09 PM
shaolinsifu shaolinsifu is offline
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I understand "c" to be vacuum port for brake booster according to edelbrock install instructions on their website...kit comes with a plug and a fitting depending on use,if yours was not a kit (like mine) I picked up a fitting at Advance for about 2bucks...
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  #24  
Old 02-08-2009, 09:29 PM
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Quote:
Originally Posted by shaolinsifu
I understand "c" to be vacuum port for brake booster according to edelbrock install instructions on their website...kit comes with a plug and a fitting depending on use,if yours was not a kit (like mine) I picked up a fitting at Advance for about 2bucks...

So does F go to C? (F from this picture and C from the first one) It's been months since I pulled this apart and I didn't label some stuff when I did. Where was F hooked up on the stock set up?

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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #25  
Old 02-09-2009, 09:01 PM
shaolinsifu shaolinsifu is offline
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from what I gather in the instructions at edelbrock's website, yes "f" goes to "c" . sounds like you'll need to remove the plug thats there and install a fitting from the parts store that goes 1/4"npt to 3/8 tube ...pull up edelbrock.com and follow links to the carb page then you can bring up a pdf of the instruction manual including a parts list of what origionally came with the carb when it was new...and also where all those ports go to...I'll be installing a 1406 pretty soon on mine so I've been doing some homework to make sure I am familliar with what goes where when the time comes...
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  #26  
Old 02-10-2009, 02:27 AM
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shiner2001 shiner2001 is offline
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I have all of the literature that came with the carb (I bought it new), I've just been kind of slow on the uptake with all the vacuum mess, especially since I am ditching all the AIR tubes and pump and what not. I'm gone from home until next week, so it's just sitting in the garage wondering where I went right now. I seriously almost changed my schedule this week just to be able to stay home and work on it. Ooohhh, the sickness...
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #27  
Old 02-10-2009, 02:37 AM
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grand_wag_85 grand_wag_85 is offline
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Cool pix? What's that funky looking gear thing on the end of the cam? Fuel pump lobe?
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  #28  
Old 02-10-2009, 02:52 AM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by grand_wag_85
Cool pix? What's that funky looking gear thing on the end of the cam? Fuel pump lobe?

The fuel pump lobe is actually right behind that gear. Hard to tell in that picture since its from straight on.
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #29  
Old 02-10-2009, 03:05 AM
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grand_wag_85 grand_wag_85 is offline
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Quote:
Originally Posted by shiner2001
The fuel pump lobe is actually right behind that gear. Hard to tell in that picture since its from straight on.
Gotcha...So it's the Dizzy gear
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  #30  
Old 02-10-2009, 03:08 AM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by grand_wag_85
Gotcha...So it's the Dizzy gear

Right-o
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #31  
Old 02-10-2009, 03:14 AM
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grand_wag_85 grand_wag_85 is offline
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Is that for an aftermarket dizzy or are my eyes just playing tricks on me?
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  #32  
Old 02-10-2009, 03:21 AM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by grand_wag_85
Is that for an aftermarket dizzy or are my eyes just playing tricks on me?

That picture is as it is coming out. Stock gear on stock cam for a stock dizzy. I will be swapping the dizzy gear over to my Mallory as soon as this round of upgrades is done, that way the gears can continue to play nice together as they have for so long.
__________________
Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #33  
Old 02-10-2009, 03:25 AM
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grand_wag_85 grand_wag_85 is offline
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Quote:
Originally Posted by shiner2001
That picture is as it is coming out. Stock gear on stock cam for a stock dizzy. I will be swapping the dizzy gear over to my Mallory as soon as this round of upgrades is done, that way the gears can continue to play nice together as they have for so long.

Thanks man. I dunno why but in that pic it looks so different for whatever reason. I've prolly done 4 or 5 timing sets on AMC's(slaps head), I feel like a heel.
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  #34  
Old 02-10-2009, 03:30 AM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by grand_wag_85
Thanks man. I dunno why but in that pic it looks so different for whatever reason. I've prolly done 4 or 5 timing sets on AMC's(slaps head), I feel like a heel.

It's on an 84 that I have only had for almost exactly one year, so there is a greater than zero chance that it's indeed not stock, I am just assuming that it is (70K miles one owner, no major work or mods). It also very well could just be the photo playing tricks, maybe the angle or something, who knows.
__________________
Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
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  #35  
Old 02-10-2009, 08:57 PM
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smearig smearig is offline
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Have you fired it up yet? Mine is finally running pretty well after I got the timing straightened out. The cam is definitely a little lumpier at idle, I'm really liking it.

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  #36  
Old 02-10-2009, 09:11 PM
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shiner2001 shiner2001 is offline
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Quote:
Originally Posted by smearig
Have you fired it up yet? Mine is finally running pretty well after I got the timing straightened out. The cam is definitely a little lumpier at idle, I'm really liking it.


Not yet, I am away from home until next week, so it's just sitting. All I have left to do before I try to start it is add a new PCV valve (mine was the connected to the threaded fitting on the stock manifold, need one to push into the rubber grommet on the 3731) and finish the vacuum hook ups. I am going to get all new line I think so that I know they are in good shape. I'll be going down to San Antonio sometime next week, I may wanna take a look at yours and get some photos of the vacuum setup and what not if you don't mind showing it off.
__________________
Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
Reply With Quote
  #37  
Old 02-11-2009, 02:01 AM
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shackwrrr shackwrrr is offline
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"A" and "B" should be plugged if they are not going to be used. normally they are for manifold vac nipples to control emissions. so the only 4 things that are vac controlled should be heater controls, PCV, Brakes, and vac advance.


vac advance should go strait to the front of the carb on the pass side nipple

vac brake booster should go to either the big port on the front of the carb or a fitting screwed into the intake

the pcv should be hooked to a large vac source about the same as the brakes

and the heater controls can be hooked to any full manifold vac the other nipple on the front of the carb will work
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  #38  
Old 02-11-2009, 02:13 AM
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shiner2001 shiner2001 is offline
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shackwrrr, can't the vac brake booster go to C, the port on the rear of the carb that is plugged in the picture? It looks like that is the port that Edelbrock designates for the brakes.

I am not with the Jeep right now, but I have another line hooked up to the large port on the front/center of the carb. I can't recall off the top of my head where the other end goes, but it was also connected to the front of the stock carb, to the best of my memory. Any insight on that since you said the brake booster can go there as well?

Like I said, I am probably going to start from scratch with the vacuum stuff when I get back home. After looking at several diagrams, I think I can replumb it all somewhat correctly, haha.

Along the same lines of vacuum and emissions talk, what have people done with the hard line that runs down to the catalytic converter? I believe there is a joint where it can be detached, and then I suppose it can maybe be either welded shut (not sure off the top of my head what material it is) or crimped or plugged somehow. Thoughts or suggestions?
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Derek
----------------
1973 Wagoneer 360
1978 Cherokee 360
1981 J10 360

----------------
1964 El Camino 357
1972 C10 454 LS6
1979 Corvette L82
1979 Scout II 345
1988 YJ 4.2L
1991 YJ 4.3L
1990 Suburban V2500 350
1998 Mark VIII 4.6L
2001 Yukon 5.3L

----------------
"If it's not broken, fix it 'till it is."
Reply With Quote
  #39  
Old 02-11-2009, 08:47 AM
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smearig smearig is offline
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Quote:
Originally Posted by shiner2001
Not yet, I am away from home until next week, so it's just sitting. All I have left to do before I try to start it is add a new PCV valve (mine was the connected to the threaded fitting on the stock manifold, need one to push into the rubber grommet on the 3731) and finish the vacuum hook ups. I am going to get all new line I think so that I know they are in good shape. I'll be going down to San Antonio sometime next week, I may wanna take a look at yours and get some photos of the vacuum setup and what not if you don't mind showing it off.

My vacuum setup is very limited because I have hydroboost brakes and the 208 transfer case. I think I even have the ball disconnected right now because I can't figure out why I'd even need it. I have a PCV and the vacuum going to the HEI and that's it for now. Give me a call if you're going to be in the area, I'm always down for showing off the Jeep.
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  #40  
Old 02-11-2009, 01:51 PM
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shackwrrr shackwrrr is offline
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theres my setup.

the big yellow one goes to the booster
the big black one goes to the pcv
the front little yellow one goes to the distributor
the rear little yellow one you can see where it goes to the canister on the firewall.


here is a diagram for 79. since you dont have alot of your emissons that should work

http://s43.photobucket.com/albums/e3...360_Vacuum.jpg


Oh and are you going to use the EGR? it isnt really needed if you dont plan on smogging it. If you do want to run it you need the EGR CTO on that diagram


a bigger overall picture of your setup may help us help you a little better

edit:

oh yea disreguard the honda EGR. it acually bolts right to the stock manifold, I am using it as a block off plate. lol
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