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weber carb help

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Old 08-30-2010, 01:25 PM
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weber carb help

im sure this gets asked alot but im confused on how hard its going to be to install a weber carb on my 87 truck
Old 08-30-2010, 01:29 PM
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ooops wrong link: here you go: http://www.jtoutfitters.com/pub/K746.doc

Last edited by xxxtreme22r; 08-30-2010 at 01:31 PM.
Old 08-30-2010, 01:45 PM
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thanks that will help but i just had one more question do i just plug the line that goes to the senser in the air cleaner holder or do i have to relocate it or is that just a cold start? and can i just put a filter over the oil breather
Old 08-30-2010, 01:52 PM
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oil breather on the front of the valve cover will get plummed with the kit into the new air filter assembly. all other vacuum lines will get plugged including the egr modulator, stove pipe and MC valve on the air cleaner assembly as well as one of the distributor vacuum lines closest to the motor. The other distributor line will get rerouted to the port on the new carb. I can;t remember but I think the vacuum line from the brake booster will have to get rerouted to the intake manifold. The pcv will get replumed into where the old EGR tube would go. The electrical connector for the carb will have to get spliced and the wire for the choke will have to get a wire connector on it to put onto the new choke on the new carb, as well as the wire for the idle shutoff solenoid which you have to buy separately as the old aisin one will not work with the weber.

Last edited by xxxtreme22r; 08-30-2010 at 01:55 PM.
Old 08-30-2010, 01:54 PM
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ok. it doesnt sound to bad thanks for your help
Old 08-30-2010, 01:56 PM
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should take a few hours as long as you have everything. and then take a little while to tune it. the kit should have directions with it. I got my kit from webercarbsdirect.com.
Old 08-30-2010, 02:02 PM
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thats not to bad.im going to order it tonight and nice flat bed im going to start building mine soon
Old 08-30-2010, 02:09 PM
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the fuel return line off the fuel pump will get disconnected and plugged as well. You might also want to pick up that holley pressure regulator as well and a small gauge to attache to it to regulate your fuel pressure down to the recommended 3.5-4psi.

Hardest part of the install is the tuning. you have to follow the tuning procedure to the letter.
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