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Unread 02-17-2013, 01:15 PM   #91
spward
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Quote:
Originally Posted by frhrwa View Post
how's that Jeep FSM coming along? the last one is 36mb, so its a bugger to send.. trying now, may have to find an alternative method to get it to you.. anyone have a clue how to send a large file over the internet to an email address? everything I've tried has failed..
Create a Dropbox account and send the link for the shared location.

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Unread 02-18-2013, 08:10 AM   #92
Chuggins08
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good idea, I didnt even think of that.
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Unread 02-18-2013, 12:56 PM   #93
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If you want to share, just let me know. Would like to see a copy.
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Unread 02-18-2013, 06:48 PM   #94
tomtraevius
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Yeah I wouldn't mind a copy of that either, I am working through some vacuum issues right now
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Unread 02-18-2013, 10:22 PM   #95
frhrwa
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ok, how do I set up a dropbox account?
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Unread 02-19-2013, 03:55 AM   #96
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Just go to Dropbox.com and register an account. Then create a folder and upload the document into it. Then from your main page that displays folders, scroll over the folder you want to share and over to the right a link of chain button will appear. Click on that and a pop up window will come up that says share link to "folder". Then click the Get link button and that should copy the link to your clipboard. Then just paste that link into the forum. That should allow people to go to that folder to look at the file.
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Unread 02-19-2013, 07:27 AM   #97
jeep1000
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I'm getting ready to redo all of my vacuum hoses on my 258 I6 CJ7 from 1985, about how much hose would I need?
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Unread 05-30-2014, 08:31 PM   #98
Crazy_Jeeper_7
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This thread has been extremely helpful. I installed an EMPI 32/36 2BBL carb on my 78 stock 258 and now I have oil spraying everywhere at higher speeds. The CTO is plugged by my grandfather, the canister is 36 years old, and the hose tee'd off the new PCV valve to the canister collapses when it's idling. It idles smooth and runs fine, but why is oil pressure at 5psi idle and at 60psi driving and spraying out of the dipstick tube? There's even oil making it thru the valve cover breather tube into the air cleaner assembly. Also, what is the mechanism below the carb but above the EGR? One hose is plugged and the other hose leads to the cap of the canister from this mechanism.
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Unread 05-31-2014, 06:13 AM   #99
Mike Romain
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I would first think maybe the oil filter was plugged.

The small line to the canister comes from the CTO on the intake by the carb. CTO needs ported vacuum to turn the canister on. Not your oil blowing issue likely.
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Unread 05-31-2014, 10:09 AM   #100
Crazy_Jeeper_7
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Mike,

On the mechanism below the carb off the side of the manifold, but above the EGR, it has two lines. The top 6mm hose is plugged to the top of the canister, and the bottom 4mm hose is plugged with a screw and some RTV.

I did locate my CTO though; both lines are plugged.

The EGR valve port has nothing connected to it either.

Both my manuals got packed up for my current move.

So, my question is, with the float bowl hose, fuel vapor line to the tank, the T'd 8mm hose from the PCV, and the mystery mechanism 6mm line all hooked to the canister, is that creating a negative vaccum since the CTO is plugged?
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Unread 05-31-2014, 11:00 AM   #101
Mike Romain
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Sorry, I got mixed on the parts. The canister gets a large vent from the carb float bowl. It also gets one from the gas tank. The valve on top of the canister purges into the PCV system. The small line off the top of the canister turns it on. It should come from a ported vacuum source so it only turns on at speed.

I think you are describing a manifold vacuum source going to the small 'turn on' line up top? If so, it will cause a vacuum leak at idle making the carb real hard if not impossible to tune.
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Unread 06-03-2014, 05:51 PM   #102
Crazy_Jeeper_7
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So, after some research, I found that the mechanism below the carb, but above the EGR is the Manifold Vacuum Fitting. I have two 4mm hose hookups on mine but I cannot find a schematic that shows what they are suppose to be hooked too. With the engine running, they both have a vacuum. If I plug one of them with my finger, the engine idle doesn't change. If I plug them both, the engine idles rough and slow. I plugged one of them and put a vacuum valve on the other. I know this isn't how they are supposed to be hooked up and would like to fix this. Just short of rebuilding the engine, I have got to find out where the oil is coming from at speeds above 35mph.
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Unread 06-04-2014, 04:22 AM   #103
Mike Romain
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One goes to the distributor for manifold vacuum advance and the other usually goes to a power brake booster. If you use ported advance, they need to be blocked.

Your engine will not run right with these open. They create a massive vacuum leak. They must be blocked off, then the carb mix will need to be reset from the sounds of it. Especially if someone tried to tune the carb with these open.

A vacuum leak like that makes the idle go high, so if the carb was tuned that way, blocking them should make the idle go way down and the carb needs to be reset.
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89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 06-04-2014, 06:11 AM   #104
Matt1981CJ7
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Crazy,

Are you running the factory air cleaner assembly? If so, I have a good vacuum diagram I can post.

Let me know.

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Unread 06-06-2014, 07:23 AM   #105
Crazy_Jeeper_7
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Thanks Matt and Mike! I am not running the factory air cleaner; i am using the EMPI air cleaner assembly with a K&N filter.

So I need to plug both of the manifold vacuum hoses?

The EMPI has the vacuum advance port for the distributor so that is hooked up. I pulled out the instructions for resetting the EMPI carb so I'll plug the hoses from the manifold vacuum and reset the carb to factory settings and then fire it up to check timing. While I'm at it I'll pull the #1 plug and check the TDC versus the distro cap.

Matt, i'd still like the vacuum schematic; i used to run the stock air cleaner and had a snorkle hooked up to it which I might go back to one day.
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http://www.rocky-road.com/cjspoa.html

http://www.rocky-road.com/cjott.html

1978 CJ7, 258 I6, T-150 3 speed, D20 TC, Rocky Road 6.5" SOA with Over The Top High Steering and custom hydro Long Travel Shocks, Old Man Emu Steering Stabilizer, 4.56 front and rear, OX Cable Locked, Rugged Ridge XHD Modular Front Bumper with T-Max 9,000lb Winch, LoD Xpedition Rear Bumper with all the goodies, 35x12.5 MT MTZs, custom snorked and list is GROWING
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